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added composer files and installed vendor packages. Also modified xsls to display base project

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James Richie
2026-08-09 09:59:37 -04:00
parent 53cd5430ee
commit 2d96a7b6e5
2142 changed files with 569661 additions and 240 deletions
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vendor/tecnickcom/tc-lib-pdf-encrypt/.editorconfig
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# Ref: https://EditorConfig.org
# top-most EditorConfig file
root = true
# Unix-style end of lines and a blank line at the end of the file
[*]
indent_style = tab
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true
[*.php]
indent_style = space
indent_size = 4
[*.{js,json,scss,css,yml,vue}]
indent_style = space
indent_size = 2
vendor/tecnickcom/tc-lib-pdf-encrypt/.gitattributes
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# Normalize text sources to LF in the repository and on checkout everywhere.
# Critical for a byte-level library: keeps source and fixtures byte-identical
# across Windows/macOS/Linux checkouts regardless of core.autocrlf.
*.php text eol=lf
*.md text eol=lf
*.xml text eol=lf
*.xml.dist text eol=lf
*.json text eol=lf
*.toml text eol=lf
*.yml text eol=lf
*.yaml text eol=lf
*.txt text eol=lf
Makefile text eol=lf
# Byte-exact fixtures must never be transformed (CRLF/auto-detection off).
test/**/*.bin -text
*.png binary
*.jpg binary
*.gif binary
*.pdf binary
*.ttf binary
*.otf binary
vendor/tecnickcom/tc-lib-pdf-encrypt/.github/ISSUE_TEMPLATE/bug_report.md
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---
name: Bug report
about: Create a report to help us improve
title: ''
labels: ''
assignees: ''
---
**Describe the bug**
A clear and concise description of what the bug is.
**To Reproduce**
Steps to reproduce the behavior:
1. ...
**Expected behavior**
A clear and concise description of what you expected to happen.
**Logs**
If applicable, copy the relevant logs to help explain your problem.
**Environment:**
- OS:
- PHP version:
- Version:
**Additional context**
Add any other context about the problem here.
vendor/tecnickcom/tc-lib-pdf-encrypt/.github/ISSUE_TEMPLATE/feature_request.md
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---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: ''
assignees: ''
---
**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.
vendor/tecnickcom/tc-lib-pdf-encrypt/.github/pull_request_template.md
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# Description
Please include a summary of the change and include relevant motivation and context.
...
## Checklist:
- [ ] The `make buildall` command has been run successfully without any error or warning.
- [ ] Any new code line is covered by unit tests and the coverage has not dropped.
- [ ] Any new code follows the style guidelines of this project.
- [ ] The code changes have been self-reviewed.
- [ ] Corresponding changes to the documentation have been made.
- [ ] The version has been updated in the VERSION file.
## Type of change:
- [ ] Bug fix (non-breaking change which fixes an issue) → The patch number in the VERSION file has been increased.
- [ ] New feature (non-breaking change which adds functionality) → The minor number in the VERSION file has been increased.
- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected) → The major number in the VERSION file has been increased.
- [ ] Automation.
- [ ] Documentation.
- [ ] Example.
- [ ] Testing.
vendor/tecnickcom/tc-lib-pdf-encrypt/.github/workflows/check.yml
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name: check
env:
XDEBUG_MODE: coverage
permissions:
contents: read
on:
push:
branches:
- 'main'
pull_request:
types: [opened, synchronize, reopened]
branches:
- main
workflow_dispatch:
jobs:
test-php:
name: Test on php ${{ matrix.php-version }} and ${{ matrix.os }}
runs-on: ${{ matrix.os }}
continue-on-error: ${{ matrix.experimental }}
strategy:
fail-fast: false
matrix:
php-version: ["8.2", "8.3", "8.4", "8.5"]
experimental: [false]
os: [ubuntu-latest]
coverage-extension: [pcov]
steps:
- uses: actions/checkout@v7
- name: Use php ${{ matrix.php-version }}
uses: shivammathur/setup-php@v2
with:
php-version: ${{ matrix.php-version }}
coverage: ${{ matrix.coverage-extension }}
extensions: bcmath, curl, date, gd, hash, imagick, json, mbstring, openssl, pcre, zlib
ini-values: display_errors=on, error_reporting=-1, zend.assertions=1
- name: List php modules
run: php -m
- name: List php modules using "no php ini" mode
run: php -m -n
- name: Cache module
uses: actions/cache@v6
with:
path: ~/.composer/cache/
key: composer-cache
- name: Install dependencies
env:
GH_TOKEN: ${{ github.token }}
run: make deps
- name: Run all tests
run: make qa
- name: Send coverage
uses: codecov/codecov-action@v7
with:
flags: php-${{ matrix.php-version }}-${{ matrix.os }}
name: php-${{ matrix.php-version }}-${{ matrix.os }}
vendor/tecnickcom/tc-lib-pdf-encrypt/.gitignore
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**/*.bak
**/*.tmp
**/.#*
**/.DS_Store
**/._*
**/.idea
**/.vagrant
**/auth.json
**/nbproject
**/temp.php
**/test.php
.phpdoc
.phpunit.cache
.phpunit.result.cache
composer.lock
ecs.php
phpunit.xml
rector.php
target
vendor
PLAN_*
vendor/tecnickcom/tc-lib-pdf-encrypt/CODEOWNERS
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* @nicolaasuni
vendor/tecnickcom/tc-lib-pdf-encrypt/CODE_OF_CONDUCT.md
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# Contributor Covenant Code of Conduct
## Our Pledge
We as members, contributors, and leaders pledge to make participation in our
community a harassment-free experience for everyone, regardless of age, body
size, visible or invisible disability, ethnicity, sex characteristics, gender
identity and expression, level of experience, education, socio-economic status,
nationality, personal appearance, race, religion, or sexual identity
and orientation.
We pledge to act and interact in ways that contribute to an open, welcoming,
diverse, inclusive, and healthy community.
## Our Standards
Examples of behavior that contributes to a positive environment for our
community include:
* Demonstrating empathy and kindness toward other people
* Being respectful of differing opinions, viewpoints, and experiences
* Giving and gracefully accepting constructive feedback
* Accepting responsibility and apologizing to those affected by our mistakes,
and learning from the experience
* Focusing on what is best not just for us as individuals, but for the
overall community
Examples of unacceptable behavior include:
* The use of sexualized language or imagery, and sexual attention or
advances of any kind
* Trolling, insulting or derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or email
address, without their explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Enforcement Responsibilities
Community leaders are responsible for clarifying and enforcing our standards of
acceptable behavior and will take appropriate and fair corrective action in
response to any behavior that they deem inappropriate, threatening, offensive,
or harmful.
Community leaders have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, and will communicate reasons for moderation
decisions when appropriate.
## Scope
This Code of Conduct applies within all community spaces, and also applies when
an individual is officially representing the community in public spaces.
Examples of representing our community include using an official e-mail address,
posting via an official social media account, or acting as an appointed
representative at an online or offline event.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the community leaders responsible for enforcement at
.
All complaints will be reviewed and investigated promptly and fairly.
All community leaders are obligated to respect the privacy and security of the
reporter of any incident.
## Enforcement Guidelines
Community leaders will follow these Community Impact Guidelines in determining
the consequences for any action they deem in violation of this Code of Conduct:
### 1. Correction
**Community Impact**: Use of inappropriate language or other behavior deemed
unprofessional or unwelcome in the community.
**Consequence**: A private, written warning from community leaders, providing
clarity around the nature of the violation and an explanation of why the
behavior was inappropriate. A public apology may be requested.
### 2. Warning
**Community Impact**: A violation through a single incident or series
of actions.
**Consequence**: A warning with consequences for continued behavior. No
interaction with the people involved, including unsolicited interaction with
those enforcing the Code of Conduct, for a specified period of time. This
includes avoiding interactions in community spaces as well as external channels
like social media. Violating these terms may lead to a temporary or
permanent ban.
### 3. Temporary Ban
**Community Impact**: A serious violation of community standards, including
sustained inappropriate behavior.
**Consequence**: A temporary ban from any sort of interaction or public
communication with the community for a specified period of time. No public or
private interaction with the people involved, including unsolicited interaction
with those enforcing the Code of Conduct, is allowed during this period.
Violating these terms may lead to a permanent ban.
### 4. Permanent Ban
**Community Impact**: Demonstrating a pattern of violation of community
standards, including sustained inappropriate behavior, harassment of an
individual, or aggression toward or disparagement of classes of individuals.
**Consequence**: A permanent ban from any sort of public interaction within
the community.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 2.0, available at
https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
Community Impact Guidelines were inspired by [Mozilla's code of conduct
enforcement ladder](https://github.com/mozilla/diversity).
[homepage]: https://www.contributor-covenant.org
For answers to common questions about this code of conduct, see the FAQ at
https://www.contributor-covenant.org/faq. Translations are available at
https://www.contributor-covenant.org/translations.
vendor/tecnickcom/tc-lib-pdf-encrypt/CONTRIBUTING.md
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# Contributing to tc-lib-pdf-encrypt
Thank you for your interest in contributing to **tc-lib-pdf-encrypt**.
Contributions of all kinds are welcome: bug reports, bug fixes, documentation improvements, new features, and refactors.
Please take a moment to read this guide before opening an issue or pull request.
---
## Table of Contents
- [Code of Conduct](#code-of-conduct)
- [Security Vulnerabilities](#security-vulnerabilities)
- [Getting Started](#getting-started)
- [Reporting a Bug](#reporting-a-bug)
- [Submitting a Bug Fix](#submitting-a-bug-fix)
- [Proposing a New Feature](#proposing-a-new-feature)
- [Development Workflow](#development-workflow)
- [Coding Standards](#coding-standards)
- [Testing](#testing)
- [Pull Request Guidelines](#pull-request-guidelines)
- [Commit Message Guidelines](#commit-message-guidelines)
---
## Code of Conduct
This project follows the [Contributor Covenant Code of Conduct](CODE_OF_CONDUCT.md). By participating you agree to abide by its terms. Please report unacceptable behaviour to [info@tecnick.com](mailto:info@tecnick.com).
---
## Security Vulnerabilities
**Do not open a public GitHub issue for security vulnerabilities.**
Please follow the [Security Policy](SECURITY.md) and report them privately.
---
## Getting Started
### Requirements
- PHP **≥ 8.2**
- [Composer](https://getcomposer.org/) v2
- `make`, `git`
- Optional: `rpmbuild` (RPM packaging), `dpkg-buildpackage` (DEB packaging)
### Local setup
```bash
git clone https://github.com/tecnickcom/tc-lib-pdf-encrypt.git
cd tc-lib-pdf-encrypt
make buildall
```
To verify everything is working after a change:
```bash
make qa
```
This runs linting, static analysis, and the full unit-test suite with coverage.
---
## Reporting a Bug
Before opening an issue:
1. **Check the [Security Policy](SECURITY.md)** — if the bug is a security vulnerability, do not file a public issue.
2. **Search [existing issues](https://github.com/tecnickcom/tc-lib-pdf-encrypt/issues)** to avoid duplicates.
If no existing issue matches, [open a new one](https://github.com/tecnickcom/tc-lib-pdf-encrypt/issues/new) and include:
- A **clear title and description** of the problem.
- The **library version** (`composer show tecnickcom/tc-lib-pdf-encrypt`) and PHP version.
- A **minimal, self-contained reproduction** — a short PHP script or a failing PHPUnit test case is ideal.
- **Expected vs. actual behaviour** — what you expected to happen and what actually happened.
- Any relevant **stack trace or error output**.
The more precise and reproducible the report, the faster it can be triaged and fixed.
---
## Submitting a Bug Fix
1. [Fork the repository](https://github.com/tecnickcom/tc-lib-pdf-encrypt/fork) and create a branch from `main`:
```bash
git checkout -b fix/short-description-of-bug
```
2. Make your changes, following the [Coding Standards](#coding-standards) below.
3. Add or update unit tests to cover the changes.
4. Run the full quality-assurance suite locally and ensure it passes:
```bash
make qa
```
5. Commit your changes (see [Commit Message Guidelines](#commit-message-guidelines)).
6. Open a pull request against `main` and fill in the PR template:
- Describe the problem and your solution.
- Reference the related issue number (e.g. `Fixes #123`).
---
## Proposing a New Feature
Before writing any code:
1. **Open a Feature Request** on [GitHub Issues](https://github.com/tecnickcom/tc-lib-pdf-encrypt/issues/new) describing the use case and proposed API.
2. Wait for feedback from the maintainer. This avoids investing time in a direction that may not be accepted.
Once the feature is agreed upon, follow the same branch → code → test → PR workflow as for bug fixes, using a branch named `feature/short-description`.
---
## Development Workflow
The `Makefile` exposes all common development tasks:
| Command | Description |
|---------|-------------|
| `make qa` | Run linting, static analysis, tests, and reports |
| `make test` | Run PHPUnit with code coverage |
| `make lint` | Check coding standards |
| `make format` | Auto-format the code |
| `make buildall` | Install dependencies, fix style, run QA, and build packages |
| `make clean` | Remove `vendor/` and `target/` directories |
| `make server` | Start the built-in PHP development server for the examples |
Run `make help` to see the full list of available targets.
---
## Coding Standards
- The codebase follows **PSR-12** for formatting.
- Run `make format` to auto-format the code.
- Run `make lint` to catch remaining issues.
- All source files live under `src/`, all tests under `test/`.
- Use strict types and explicit visibility on all class members.
- Avoid introducing new external dependencies without prior discussion.
---
## Testing
Tests are written with [PHPUnit](https://phpunit.de/) and live in `test/`.
```bash
# Run the full test suite with coverage
make test
# Run a specific test file
XDEBUG_MODE=coverage ./vendor/bin/phpunit test/HTMLTest.php
```
Requirements for contributions:
- Every bug fix must be accompanied by a regression test that fails before the fix and passes after.
- Every new feature must be accompanied by tests that cover both the happy path and edge cases.
Coverage reports are generated in `target/coverage/`.
---
## Pull Request Guidelines
- Target the `main` branch.
- Keep PRs focused — one fix or feature per PR.
- Ensure `make qa` passes locally before opening the PR.
- Do not bump the version number in your PR; that is handled by the maintainer at release time.
- Be responsive to review feedback; stale PRs may be closed after an extended period of inactivity.
---
## Commit Message Guidelines
Use concise, imperative-mood commit messages:
```
fix: correct path traversal in font loader
feat: add support for XYZ
test: add regression test for #123
docs: update CONTRIBUTING workflow
refactor: extract text measurement into helper
```
Prefix tags: `fix`, `feat`, `test`, `docs`, `refactor`, `chore`, `ci`.
Reference issues where relevant: `fix: correct X (closes #42)`.
---
## Questions?
If you have a question that is not covered here, feel free to open a [GitHub Discussion](https://github.com/tecnickcom/tc-lib-pdf-encrypt/discussions) or contact the maintainer at [info@tecnick.com](mailto:info@tecnick.com).
vendor/tecnickcom/tc-lib-pdf-encrypt/LICENSE
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**********************************************************************
* LICENSE
*
* SOFTWARE : tc-lib-pdf-encrypt
* AUTHOR : Nicola Asuni <info@tecnick.com>
* COPYRIGHT : 2011-2026 Nicola Asuni - Tecnick.com LTD
**********************************************************************
This is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
**********************************************************************
**********************************************************************
GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://www.fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
of using an interface provided by the Library.
A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".
The "Minimal Corresponding Source" for a Combined Work means the
Corresponding Source for the Combined Work, excluding any source code
for portions of the Combined Work that, considered in isolation, are
based on the Application, and not on the Linked Version.
The "Corresponding Application Code" for a Combined Work means the
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and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.
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You may convey a covered work under sections 3 and 4 of this License
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function or data, the facility still operates, and performs
whatever part of its purpose remains meaningful, or
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taken together, effectively do not restrict modification of the
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b) Give prominent notice with the combined library that part of it
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accompanying uncombined form of the same work.
6. Revised Versions of the GNU Lesser General Public License.
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of the GNU Lesser General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the
Library as you received it specifies that a certain numbered version
of the GNU Lesser General Public License "or any later version"
applies to it, you have the option of following the terms and
conditions either of that published version or of any later version
published by the Free Software Foundation. If the Library as you
received it does not specify a version number of the GNU Lesser
General Public License, you may choose any version of the GNU Lesser
General Public License ever published by the Free Software Foundation.
If the Library as you received it specifies that a proxy can decide
whether future versions of the GNU Lesser General Public License shall
apply, that proxy's public statement of acceptance of any version is
permanent authorization for you to choose that version for the
Library.
**********************************************************************
**********************************************************************
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://www.fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
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Some devices are designed to deny users access to install or run
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The precise terms and conditions for copying, distribution and
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TERMS AND CONDITIONS
0. Definitions.
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/philosophy/why-not-lgpl.html>.
**********************************************************************
**********************************************************************
vendor/tecnickcom/tc-lib-pdf-encrypt/Makefile
Vendored
+285
View File
@@ -0,0 +1,285 @@
# makefile
#
# @since 2015-02-21
# @category Library
# @package PdfEncrypt
# @author Nicola Asuni <info@tecnick.com>
# @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
# @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
# @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
#
# This file is part of tc-lib-pdf-encrypt software library.
# ----------------------------------------------------------------------------------------------------------------------
SHELL=/bin/bash
.SHELLFLAGS=-o pipefail -c
# Project owner
OWNER=tecnickcom
# Project vendor
VENDOR=${OWNER}
# Project name
PROJECT=tc-lib-pdf-encrypt
# Project version
VERSION=$(shell cat VERSION)
# Project release number (packaging build number)
RELEASE=$(shell cat RELEASE)
# Name of RPM or DEB package
PKGNAME=php-${OWNER}-${PROJECT}
# Data dir
DATADIR=usr/share
# PHP home folder
PHPHOME=${DATADIR}/php/Com/Tecnick
# Default installation path for code
LIBPATH=${PHPHOME}/Pdf/Encrypt/
# Path for configuration files (etc/$(PKGNAME)/)
CONFIGPATH=
# Default installation path for documentation
DOCPATH=${DATADIR}/doc/$(PKGNAME)/
# Installation path for the code
PATHINSTBIN=$(DESTDIR)/$(LIBPATH)
# Installation path for the configuration files
PATHINSTCFG=$(DESTDIR)/$(CONFIGPATH)
# Installation path for documentation
PATHINSTDOC=$(DESTDIR)/$(DOCPATH)
# Current directory
CURRENTDIR=$(CURDIR)/
# Target directory
TARGETDIR=target
# RPM Packaging path (where RPMs will be stored)
PATHRPMPKG=$(TARGETDIR)/RPM
# RPM local database path (avoid host rpmdb permission issues)
RPMDBPATH=$(PATHRPMPKG)/.rpmdb
# DEB Packaging path (where DEBs will be stored)
PATHDEBPKG=$(TARGETDIR)/DEB
# BZ2 Packaging path (where BZ2s will be stored)
PATHBZ2PKG=$(TARGETDIR)/BZ2
# sed argument for in-place substitutions
SEDINPLACE=-i
ifeq ($(shell uname -s),Darwin)
SEDINPLACE=-i ''
endif
# Default port number for the example server
PORT?=8000
# PHP binary
PHP=$(shell which php)
# Composer executable (disable APC to as a work-around of a bug)
COMPOSER=$(PHP) -d "apc.enable_cli=0" $(shell which composer)
# phpDocumentor executable file
PHPDOC=$(shell which phpDocumentor)
# Set default OpenSSL configuration file
ifeq ($(OPENSSL_CONF),)
OPENSSL_CONF=$(CURRENTDIR)openssl.cnf
endif
# Mago version
MAGOVERSION=1.43.0
# --- MAKE TARGETS ---
# Display general help about this command
.PHONY: help
help:
@echo ""
@echo "$(PROJECT) $(OPENSSL_CONF) Makefile."
@echo "The following commands are available:"
@echo ""
@awk '/^## /{desc=substr($$0,4)} /^\.PHONY:/{if(NF>1) {target=$$2; if(desc) printf " make %-15s: %s\n",target,desc; desc=""}}' Makefile
@echo ""
@echo "To test and build everything from scratch, use the shortcut:"
@echo " make x"
@echo ""
# alias for help target
.PHONY: all
all: help
# Full build and test sequence
.PHONY: x
x: buildall
## Full build and test sequence
.PHONY: buildall
buildall: deps format qa bz2 rpm deb
## Package the library in a compressed bz2 archive
.PHONY: bz2
bz2:
rm -rf "$(PATHBZ2PKG)"
make install DESTDIR="$(PATHBZ2PKG)"
tar -jcvf "$(PATHBZ2PKG)/$(PKGNAME)-$(VERSION)-$(RELEASE).tbz2" -C "$(PATHBZ2PKG)" "$(DATADIR)"
## Delete the vendor and target directories
.PHONY: clean
clean:
rm -rf ./vendor "$(TARGETDIR)"
## Build a DEB package for Debian-like Linux distributions
.PHONY: deb
deb:
rm -rf "$(PATHDEBPKG)"
$(MAKE) install DESTDIR="$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)"
rm -f "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/$(DOCPATH)LICENSE"
tar -zcvf "$(PATHDEBPKG)/$(PKGNAME)_$(VERSION).orig.tar.gz" -C "$(PATHDEBPKG)/" "$(PKGNAME)-$(VERSION)"
cp -rf ./resources/debian "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian"
find "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/" -type f -name '*.bak' -delete
chmod 755 "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/rules"
find "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/" -type f -exec sed $(SEDINPLACE) "s/~#DATE#~/`date -R`/" {} \;
find "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/" -type f -exec sed $(SEDINPLACE) "s/~#VENDOR#~/$(VENDOR)/" {} \;
find "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/" -type f -exec sed $(SEDINPLACE) "s/~#PROJECT#~/$(PROJECT)/" {} \;
find "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/" -type f -exec sed $(SEDINPLACE) "s/~#PKGNAME#~/$(PKGNAME)/" {} \;
find "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/" -type f -exec sed $(SEDINPLACE) "s/~#VERSION#~/$(VERSION)/" {} \;
find "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/" -type f -exec sed $(SEDINPLACE) "s/~#RELEASE#~/$(RELEASE)/" {} \;
echo "$(LIBPATH)" > "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/$(PKGNAME).dirs"
echo "$(LIBPATH)* $(LIBPATH)" > "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/install"
echo "$(DOCPATH)" >> "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/$(PKGNAME).dirs"
echo "$(DOCPATH)* $(DOCPATH)" >> "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/install"
ifneq ($(strip $(CONFIGPATH)),)
echo "$(CONFIGPATH)" >> "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/$(PKGNAME).dirs"
echo "$(CONFIGPATH)* $(CONFIGPATH)" >> "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/install"
endif
echo "new-package-should-close-itp-bug" > "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)/debian/$(PKGNAME).lintian-overrides"
cd "$(PATHDEBPKG)/$(PKGNAME)-$(VERSION)" && debuild -us -uc
## Clean all artifacts and download all dependencies
.PHONY: deps
deps: ensuretarget
rm -rf ./vendor/*
($(COMPOSER) install -vvv --no-interaction)
curl --proto '=https' --tlsv1.2 --silent --show-error --fail --location https://carthage.software/mago.sh | bash -s -- --install-dir=./vendor/bin --version=$(MAGOVERSION)
## Generate source code documentation
.PHONY: doc
doc: ensuretarget
rm -rf "$(TARGETDIR)/doc"
$(PHPDOC) -d ./src -t "$(TARGETDIR)/doc/"
## Create missing target directories for test and build artifacts
.PHONY: ensuretarget
ensuretarget:
mkdir -p "$(TARGETDIR)/test"
mkdir -p "$(TARGETDIR)/report"
mkdir -p "$(TARGETDIR)/doc"
## Install this application
.PHONY: install
install: uninstall
mkdir -p "$(PATHINSTBIN)"
cp -rf ./src/* "$(PATHINSTBIN)"
cp -f ./resources/autoload.php "$(PATHINSTBIN)"
find "$(PATHINSTBIN)" -type d -exec chmod 755 {} \;
find "$(PATHINSTBIN)" -type f -exec chmod 644 {} \;
mkdir -p "$(PATHINSTDOC)"
cp -f ./LICENSE "$(PATHINSTDOC)"
cp -f ./README.md "$(PATHINSTDOC)"
cp -f ./VERSION "$(PATHINSTDOC)"
cp -f ./RELEASE "$(PATHINSTDOC)"
chmod -R 644 "$(PATHINSTDOC)"*
ifneq ($(strip $(CONFIGPATH)),)
mkdir -p "$(PATHINSTCFG)"
touch -c "$(PATHINSTCFG)"*
cp -ru "./resources/${CONFIGPATH}"* "$(PATHINSTCFG)"
find "$(PATHINSTCFG)" -type d -exec chmod 755 {} \;
find "$(PATHINSTCFG)" -type f -exec chmod 644 {} \;
endif
## Format the source code
.PHONY: format
format:
./vendor/bin/mago fmt src test
## Analyze and Lint the source code
.PHONY: lint
lint:
./vendor/bin/mago --config ./mago.src.toml analyze src
./vendor/bin/mago --config ./mago.test.toml analyze test
./vendor/bin/mago --config ./mago.src.toml lint src
./vendor/bin/mago --config ./mago.test.toml lint test
## Run all tests and reports
.PHONY: qa
qa: ensuretarget lint test report
## Generate various reports
.PHONY: report
report: ensuretarget
./vendor/bin/pdepend --jdepend-xml="$(TARGETDIR)/report/dependencies.xml" --summary-xml="$(TARGETDIR)/report/metrics.xml" --jdepend-chart="$(TARGETDIR)/report/dependecies.svg" --overview-pyramid="$(TARGETDIR)/report/overview-pyramid.svg" --ignore=vendor ./src
#./vendor/bartlett/php-compatinfo/bin/phpcompatinfo --no-ansi analyser:run src/ > $(TARGETDIR)/report/phpcompatinfo.txt
## Build the RPM package for RedHat-like Linux distributions
.PHONY: rpm
rpm:
@test $(words $(CURDIR)) -eq 1 || { echo "ERROR: rpmbuild does not support spaces in the project path: $(CURDIR)"; exit 1; }
rm -rf "$(PATHRPMPKG)"
mkdir -p "$(RPMDBPATH)" "$(PATHRPMPKG)/tmp"
rpmbuild \
--define "_topdir $(CURRENTDIR)$(PATHRPMPKG)" \
--define "_dbpath $(CURRENTDIR)$(RPMDBPATH)" \
--define "_tmppath $(CURRENTDIR)$(PATHRPMPKG)/tmp" \
--define "_vendor $(VENDOR)" \
--define "_owner $(OWNER)" \
--define "_project $(PROJECT)" \
--define "_package $(PKGNAME)" \
--define "_version $(VERSION)" \
--define "_release $(RELEASE)" \
--define "_current_directory $(CURRENTDIR)" \
--define "_libpath /$(LIBPATH)" \
--define "_docpath /$(DOCPATH)" \
--define "_configpath /$(CONFIGPATH)" \
-bb resources/rpm/rpm.spec
## Start the development server
.PHONY: server
server:
$(PHP) -t example -S localhost:$(PORT)
## Tag this GIT version
.PHONY: tag
tag:
git checkout main && \
git tag -a ${VERSION} -m "Release ${VERSION}" && \
git push origin --tags && \
git pull
## Run unit tests
.PHONY: test
test:
cp phpunit.xml.dist phpunit.xml
#./vendor/bin/phpunit --migrate-configuration || true
OPENSSL_CONF=${OPENSSL_CONF} XDEBUG_MODE=coverage ./vendor/bin/phpunit --stderr test
## Remove all installed files
.PHONY: uninstall
uninstall:
rm -rf "$(PATHINSTBIN)"
rm -rf "$(PATHINSTDOC)"
## Increase the version patch number
.PHONY: versionup
versionup:
echo ${VERSION} | gawk -F. '{printf("%d.%d.%d\n",$$1,$$2,(($$3+1)));}' > VERSION
vendor/tecnickcom/tc-lib-pdf-encrypt/README.md
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# tc-lib-pdf-encrypt
> PDF encryption primitives for password protection and permission control.
[![Latest Stable Version](https://poser.pugx.org/tecnickcom/tc-lib-pdf-encrypt/version)](https://packagist.org/packages/tecnickcom/tc-lib-pdf-encrypt)
[![Build](https://github.com/tecnickcom/tc-lib-pdf-encrypt/actions/workflows/check.yml/badge.svg)](https://github.com/tecnickcom/tc-lib-pdf-encrypt/actions/workflows/check.yml)
[![Coverage](https://codecov.io/gh/tecnickcom/tc-lib-pdf-encrypt/graph/badge.svg?token=Pv1MNH3X3v)](https://codecov.io/gh/tecnickcom/tc-lib-pdf-encrypt)
[![License](https://poser.pugx.org/tecnickcom/tc-lib-pdf-encrypt/license)](https://packagist.org/packages/tecnickcom/tc-lib-pdf-encrypt)
[![Downloads](https://poser.pugx.org/tecnickcom/tc-lib-pdf-encrypt/downloads)](https://packagist.org/packages/tecnickcom/tc-lib-pdf-encrypt)
[![Sponsor on GitHub](https://img.shields.io/badge/sponsor-github-EA4AAA.svg?logo=githubsponsors&logoColor=white)](https://github.com/sponsors/tecnickcom)
> 💖 Part of the [tc-lib-pdf / TCPDF](https://github.com/tecnickcom/tc-lib-pdf) ecosystem (100M+ installs). [Sponsor its maintenance →](https://github.com/sponsors/tecnickcom)
---
## Overview
`tc-lib-pdf-encrypt` implements core encryption routines used by PDF generation and processing stacks, including password handling and permission flags.
The package encapsulates PDF security mechanics behind a focused API so consuming libraries can apply encryption policies without reimplementing cryptographic details. It is built for interoperability with standard PDF readers and for clear separation between document logic and security concerns.
| | |
|---|---|
| **Namespace** | `\Com\Tecnick\Pdf\Encrypt` |
| **Author** | Nicola Asuni <info@tecnick.com> |
| **License** | [GNU LGPL v3](https://www.gnu.org/copyleft/lesser.html) - see [LICENSE](LICENSE) |
| **API docs** | <https://tcpdf.org/docs/srcdoc/tc-lib-pdf-encrypt> |
| **Packagist** | <https://packagist.org/packages/tecnickcom/tc-lib-pdf-encrypt> |
---
## Security Notice
> **RC4 modes (0 and 1) are cryptographically broken and deprecated.**
> RC4-40 (mode 0) and RC4-128 (mode 1) are no longer considered secure.
> Both modes emit an `E_USER_DEPRECATED` notice at runtime.
> **Use AES-128 (mode 2), AES-256 R5 (mode 3), or AES-256 R6 / PDF 2.0 (mode 4) for all new documents.**
| Mode | Algorithm | Security |
|------|-----------|----------|
| 0 | RC4-40 | **Broken: do not use** |
| 1 | RC4-128 | **Broken: do not use** |
| 2 | AES-128 | Acceptable for legacy compatibility |
| 3 | AES-256 R5 (PDF 1.7 ext.) | Recommended |
| 4 | AES-256 R6 (PDF 2.0 / ISO 32000-2) | Recommended (most current) |
---
## Features
### Encryption
- RC4 and AES variants for PDF object/string encryption (modes 0–4; see Security Notice above)
- AES-256 R6 (PDF 2.0 / ISO 32000-2, mode 4) support with Algorithm 2.B (ISO 32000-2 §7.6.4.3.4) key derivation
- User and owner password workflows
- Permission flag handling for document operations
- Optional metadata encryption control (`$encryptMetadata`)
- Optional embedded-file stream encryption (`$encryptEmbeddedFiles`, `/EFF` dictionary entry)
- Public-key (certificate) encryption for multiple recipients
### Decryption
- Password authentication for all encryption modes (RC4-40, RC4-128, AES-128, AES-256 R5/R6)
- Public-key (PKCS#7 / S/MIME) decryption for recipient private keys
- Per-object key derivation for AES-128 streams
- Round-trip `decryptString()` companion to `encryptString()`
### Integration
- Designed for direct use by PDF writer and reader components
- Helpers for PDF date formatting and hex/string transforms
- Exception-driven error handling
---
## Requirements
- PHP 8.2 or later
- Extensions: `hash`, `openssl`
- Composer
---
## Installation
```bash
composer require tecnickcom/tc-lib-pdf-encrypt
```
---
## Quick Start
### Encrypting a string
```php
<?php
require_once __DIR__ . '/vendor/autoload.php';
// AES-256 R6 (mode 4, recommended)
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(
enabled: true,
file_id: md5('unique-file-id'),
mode: 4,
permissions: ['print', 'copy'],
user_pass: 'userpassword',
owner_pass: 'ownerpassword',
);
$cipher = $encrypt->encryptString('secret payload', $objectNumber = 1);
echo bin2hex($cipher);
```
### Decrypting a string
```php
<?php
require_once __DIR__ . '/vendor/autoload.php';
// Pass the encryption dictionary produced by the Encrypt instance.
$decrypt = new \Com\Tecnick\Pdf\Encrypt\Decrypt($encrypt->getEncryptionData());
if ($decrypt->authenticate('userpassword')) {
// For AES modes the PKCS#7 padding is stripped automatically, so the
// exact original plaintext is returned. RC4 modes are symmetric.
$plain = $decrypt->decryptString($cipher, $objectNumber = 1);
echo $plain;
}
```
### OpenSSL 3 Note
On OpenSSL 3 systems, legacy providers may be disabled by default. Enable legacy support when required by your runtime policy.
---
## Development
```bash
make deps
make help
make qa
```
---
## Packaging
```bash
make rpm
make deb
```
For system packages, bootstrap with:
```php
require_once '/usr/share/php/Com/Tecnick/Pdf/Encrypt/autoload.php';
```
---
## Contributing
Contributions are welcome. Please review [CONTRIBUTING.md](CONTRIBUTING.md), [CODE_OF_CONDUCT.md](CODE_OF_CONDUCT.md), and [SECURITY.md](SECURITY.md).
vendor/tecnickcom/tc-lib-pdf-encrypt/RELEASE
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1
vendor/tecnickcom/tc-lib-pdf-encrypt/SECURITY.md
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# Security Policy
This document describes the security policy for **tc-lib-pdf-encrypt**.
---
## Supported Versions
Security fixes are applied only to the **latest stable release** on the `main` branch.
We strongly recommend always running the latest release.
---
## Reporting a Vulnerability
**Please do not open a public GitHub issue for security vulnerabilities.**
If you discover a security vulnerability — or suspect one — follow responsible disclosure:
1. **Email** the maintainer directly at **[info@tecnick.com](mailto:info@tecnick.com)** with the subject line:
`[SECURITY] tc-lib-pdf-encrypt – <brief description>`
2. Include as much detail as possible (see [What to include](#what-to-include) below).
3. You will receive an acknowledgement as soon as possible.
4. We will work on a fix or mitigation as promptly as the complexity of the issue allows.
If you do not receive a timely response, please follow up by replying to the same email thread.
---
## What to Include
A high-quality report helps us triage and fix issues faster. Please provide:
- **Description** — a clear summary of the vulnerability and its potential impact.
- **Affected component** — which class, method, or feature is involved (e.g., `HTML::render()`, font loading, image processing).
- **Steps to reproduce** — a minimal, self-contained PHP script or unit test that demonstrates the issue.
- **Expected vs. actual behaviour** — what you expected to happen and what actually happened.
- **Environment** — PHP version, OS, library version (output of `composer show tecnickcom/tc-lib-pdf-encrypt`).
- **CVE / CWE reference** (optional) — if you have already identified a relevant classification.
- **Suggested fix** (optional) — a patch or proposed mitigation if you have one.
---
## Security Best Practices for Integrators
Integrators are responsible for sanitising input **before** passing it to the library. We recommend:
- **Validate and sanitise all user-supplied data**. Use a dedicated sanitiser when accepting content from end users.
- **Keep dependencies up to date.** Run `composer update` regularly and monitor advisories via [Packagist Security Advisories](https://packagist.org/packages/tecnickcom/tc-lib-pdf-encrypt) or tools such as `composer audit`.
- **Pin versions in production.** Use `composer.lock` and review changes on every update.
---
## Contact
| Channel | Details |
|---------|---------|
| Security email | [info@tecnick.com](mailto:info@tecnick.com) |
| Project website | <https://tcpdf.org> |
| GitHub repository | <https://github.com/tecnickcom/tc-lib-pdf-encrypt> |
| Packagist | <https://packagist.org/packages/tecnickcom/tc-lib-pdf-encrypt> |
vendor/tecnickcom/tc-lib-pdf-encrypt/VERSION
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2.9.3
vendor/tecnickcom/tc-lib-pdf-encrypt/composer.json
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{
"name": "tecnickcom/tc-lib-pdf-encrypt",
"description": "PHP library to encrypt data for PDF",
"type": "library",
"homepage": "https://tcpdf.org",
"license": "LGPL-3.0-or-later",
"keywords": [
"tc-lib-pdf-encrypt",
"PDF",
"encrypt",
"encryption",
"AES",
"RC4"
],
"authors": [
{
"name": "Nicola Asuni",
"email": "info@tecnick.com",
"role": "lead"
}
],
"funding": [
{
"type": "github",
"url": "https://github.com/sponsors/tecnickcom"
}
],
"require": {
"php": ">=8.2",
"ext-hash": "*",
"ext-openssl": "*",
"ext-pcre": "*"
},
"suggest": {
"ext-posix": "Adds the process id to the random seed material"
},
"minimum-stability": "stable",
"prefer-stable": true,
"require-dev": {
"pdepend/pdepend": "^2.16",
"phpunit/phpunit": "^11.5 || ^12.5 || ^13.2"
},
"autoload": {
"psr-4": {
"Com\\Tecnick\\Pdf\\Encrypt\\": "src"
}
},
"autoload-dev": {
"psr-4": {
"Test\\": "test"
}
},
"support": {
"issues": "https://github.com/tecnickcom/tc-lib-pdf-encrypt/issues",
"source": "https://github.com/tecnickcom/tc-lib-pdf-encrypt"
},
"scripts": {
"test": "@php -d xdebug.mode=coverage vendor/bin/phpunit --stderr test",
"analyse": ["@analyse:src", "@analyse:test"],
"analyse:src": "mago --config mago.src.toml analyze src",
"analyse:test": "mago --config mago.test.toml analyze test",
"cs-check": ["@cs-check:src", "@cs-check:test"],
"cs-check:src": "mago --config mago.src.toml lint src",
"cs-check:test": "mago --config mago.test.toml lint test",
"cs-fix": "mago fmt src test",
"qa": ["@cs-check", "@analyse", "@test"]
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/mago.src.toml
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#:schema https://mago.carthage.software/1.43.0/schema.json
version = "1"
php-version = "8.2.0"
[source]
workspace = "."
paths = ["src"]
includes = ["vendor"]
excludes = []
[source.glob]
literal-separator = true
[formatter]
print-width = 120
tab-width = 4
use-tabs = false
[linter]
integrations = []
[linter.rules]
ambiguous-function-call = { enabled = false }
literal-named-argument = { enabled = false }
cyclomatic-complexity = { enabled = false }
excessive-parameter-list = { enabled = true, threshold = 10 }
halstead = { enabled = true, effort-threshold = 7000 }
identity-comparison = { enabled = true }
kan-defect = { enabled = false }
no-boolean-flag-parameter = { enabled = false }
no-else-clause = { enabled = false }
no-empty = { enabled = true }
too-many-methods = { enabled = false }
no-isset = { enabled = true, allow-array-checks = true }
[analyzer]
plugins = []
find-unused-definitions = true
find-unused-expressions = true
analyze-dead-code = true
memoize-properties = true
check-throws = true
unchecked-exceptions = [
"Error",
"LogicException",
"ReflectionException",
]
unchecked-exception-classes = []
check-missing-override = true
find-unused-parameters = true
strict-list-index-checks = true
strict-array-index-existence = true
allow-array-truthy-operand = false
no-boolean-literal-comparison = true
check-missing-type-hints = true
register-super-globals = true
vendor/tecnickcom/tc-lib-pdf-encrypt/mago.test.toml
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#:schema https://mago.carthage.software/1.43.0/schema.json
version = "1"
php-version = "8.2.0"
[source]
workspace = "."
paths = ["src", "test"]
includes = ["vendor"]
excludes = []
[source.glob]
literal-separator = true
[formatter]
print-width = 120
tab-width = 4
use-tabs = false
[linter]
integrations = ["phpunit"]
[linter.rules]
ambiguous-function-call = { enabled = false }
literal-named-argument = { enabled = false }
assertion-style = { enabled = false }
cyclomatic-complexity = { enabled = false }
excessive-parameter-list = { enabled = false }
halstead = { enabled = false, effort-threshold = 7000 }
identity-comparison = { enabled = false }
kan-defect = { enabled = false }
no-boolean-flag-parameter = { enabled = false }
no-else-clause = { enabled = false }
no-empty = { enabled = false }
no-empty-catch-clause = { enabled = false }
no-isset = { enabled = false }
readable-literal = { enabled = false }
str-contains = { enabled = false }
strict-assertions = { enabled = false }
strict-behavior = { enabled = false }
strict-types = { enabled = false }
too-many-methods = { enabled = false }
[analyzer]
plugins = []
find-unused-definitions = true
find-unused-expressions = true
analyze-dead-code = true
memoize-properties = true
check-throws = false
unchecked-exceptions = [
"Error",
"LogicException",
"ReflectionException",
"PHPUnit\\Framework\\Exception",
"PHPUnit\\Framework\\ExpectationFailedException",
"PHPUnit\\Framework\\UnknownClassOrInterfaceException",
]
unchecked-exception-classes = []
check-missing-override = true
find-unused-parameters = true
strict-list-index-checks = true
strict-array-index-existence = true
allow-array-truthy-operand = false
no-boolean-literal-comparison = true
check-missing-type-hints = true
register-super-globals = true
vendor/tecnickcom/tc-lib-pdf-encrypt/openssl.cnf
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#
# OpenSSL example configuration file.
# See doc/man5/config.pod for more info.
#
# This is mostly being used for generation of certificate requests,
# but may be used for auto loading of providers
# Note that you can include other files from the main configuration
# file using the .include directive.
#.include filename
# This definition stops the following lines choking if HOME isn't
# defined.
HOME = .
# Use this in order to automatically load providers.
openssl_conf = openssl_init
# Comment out the next line to ignore configuration errors
config_diagnostics = 1
# Extra OBJECT IDENTIFIER info:
# oid_file = $ENV::HOME/.oid
oid_section = new_oids
# To use this configuration file with the "-extfile" option of the
# "openssl x509" utility, name here the section containing the
# X.509v3 extensions to use:
# extensions =
# (Alternatively, use a configuration file that has only
# X.509v3 extensions in its main [= default] section.)
[ new_oids ]
# We can add new OIDs in here for use by 'ca', 'req' and 'ts'.
# Add a simple OID like this:
# testoid1=1.2.3.4
# Or use config file substitution like this:
# testoid2=${testoid1}.5.6
# Policies used by the TSA examples.
tsa_policy1 = 1.2.3.4.1
tsa_policy2 = 1.2.3.4.5.6
tsa_policy3 = 1.2.3.4.5.7
# For FIPS
# Optionally include a file that is generated by the OpenSSL fipsinstall
# application. This file contains configuration data required by the OpenSSL
# fips provider. It contains a named section e.g. [fips_sect] which is
# referenced from the [provider_sect] below.
# Refer to the OpenSSL security policy for more information.
# .include fipsmodule.cnf
[openssl_init]
providers = provider_sect
ssl_conf = ssl_sect
# List of providers to load
[provider_sect]
default = default_sect
legacy = legacy_sect
# The fips section name should match the section name inside the
# included fipsmodule.cnf.
# fips = fips_sect
# If no providers are activated explicitly, the default one is activated implicitly.
# See man 7 OSSL_PROVIDER-default for more details.
#
# If you add a section explicitly activating any other provider(s), you most
# probably need to explicitly activate the default provider, otherwise it
# becomes unavailable in openssl. As a consequence applications depending on
# OpenSSL may not work correctly which could lead to significant system
# problems including inability to remotely access the system.
[default_sect]
activate = 1
[legacy_sect]
activate = 1
####################################################################
[ ca ]
default_ca = CA_default # The default ca section
####################################################################
[ CA_default ]
dir = ./demoCA # Where everything is kept
certs = $dir/certs # Where the issued certs are kept
crl_dir = $dir/crl # Where the issued crl are kept
database = $dir/index.txt # database index file.
#unique_subject = no # Set to 'no' to allow creation of
# several certs with same subject.
new_certs_dir = $dir/newcerts # default place for new certs.
certificate = $dir/cacert.pem # The CA certificate
serial = $dir/serial # The current serial number
crlnumber = $dir/crlnumber # the current crl number
# must be commented out to leave a V1 CRL
crl = $dir/crl.pem # The current CRL
private_key = $dir/private/cakey.pem# The private key
x509_extensions = usr_cert # The extensions to add to the cert
# Comment out the following two lines for the "traditional"
# (and highly broken) format.
name_opt = ca_default # Subject Name options
cert_opt = ca_default # Certificate field options
# Extension copying option: use with caution.
# copy_extensions = copy
# Extensions to add to a CRL. Note: Netscape communicator chokes on V2 CRLs
# so this is commented out by default to leave a V1 CRL.
# crlnumber must also be commented out to leave a V1 CRL.
# crl_extensions = crl_ext
default_days = 365 # how long to certify for
default_crl_days= 30 # how long before next CRL
default_md = default # use public key default MD
preserve = no # keep passed DN ordering
# A few difference way of specifying how similar the request should look
# For type CA, the listed attributes must be the same, and the optional
# and supplied fields are just that :-)
policy = policy_match
# For the CA policy
[ policy_match ]
countryName = match
stateOrProvinceName = match
organizationName = match
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
# For the 'anything' policy
# At this point in time, you must list all acceptable 'object'
# types.
[ policy_anything ]
countryName = optional
stateOrProvinceName = optional
localityName = optional
organizationName = optional
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
####################################################################
[ req ]
default_bits = 2048
default_keyfile = privkey.pem
distinguished_name = req_distinguished_name
attributes = req_attributes
x509_extensions = v3_ca # The extensions to add to the self signed cert
# Passwords for private keys if not present they will be prompted for
# input_password = secret
# output_password = secret
# This sets a mask for permitted string types. There are several options.
# default: PrintableString, T61String, BMPString.
# pkix : PrintableString, BMPString (PKIX recommendation before 2004)
# utf8only: only UTF8Strings (PKIX recommendation after 2004).
# nombstr : PrintableString, T61String (no BMPStrings or UTF8Strings).
# MASK:XXXX a literal mask value.
# WARNING: ancient versions of Netscape crash on BMPStrings or UTF8Strings.
string_mask = utf8only
# req_extensions = v3_req # The extensions to add to a certificate request
[ req_distinguished_name ]
countryName = Country Name (2 letter code)
countryName_default = AU
countryName_min = 2
countryName_max = 2
stateOrProvinceName = State or Province Name (full name)
stateOrProvinceName_default = Some-State
localityName = Locality Name (eg, city)
0.organizationName = Organization Name (eg, company)
0.organizationName_default = Internet Widgits Pty Ltd
# we can do this but it is not needed normally :-)
#1.organizationName = Second Organization Name (eg, company)
#1.organizationName_default = World Wide Web Pty Ltd
organizationalUnitName = Organizational Unit Name (eg, section)
#organizationalUnitName_default =
commonName = Common Name (e.g. server FQDN or YOUR name)
commonName_max = 64
emailAddress = Email Address
emailAddress_max = 64
# SET-ex3 = SET extension number 3
[ req_attributes ]
challengePassword = A challenge password
challengePassword_min = 4
challengePassword_max = 20
unstructuredName = An optional company name
[ usr_cert ]
# These extensions are added when 'ca' signs a request.
# This goes against PKIX guidelines but some CAs do it and some software
# requires this to avoid interpreting an end user certificate as a CA.
basicConstraints=CA:FALSE
# This is typical in keyUsage for a client certificate.
# keyUsage = nonRepudiation, digitalSignature, keyEncipherment
# PKIX recommendations harmless if included in all certificates.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer
# This stuff is for subjectAltName and issuerAltname.
# Import the email address.
# subjectAltName=email:copy
# An alternative to produce certificates that aren't
# deprecated according to PKIX.
# subjectAltName=email:move
# Copy subject details
# issuerAltName=issuer:copy
# This is required for TSA certificates.
# extendedKeyUsage = critical,timeStamping
[ v3_req ]
# Extensions to add to a certificate request
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
[ v3_ca ]
# Extensions for a typical CA
# PKIX recommendation.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid:always,issuer
basicConstraints = critical,CA:true
# Key usage: this is typical for a CA certificate. However since it will
# prevent it being used as an test self-signed certificate it is best
# left out by default.
# keyUsage = cRLSign, keyCertSign
# Include email address in subject alt name: another PKIX recommendation
# subjectAltName=email:copy
# Copy issuer details
# issuerAltName=issuer:copy
# DER hex encoding of an extension: beware experts only!
# obj=DER:02:03
# Where 'obj' is a standard or added object
# You can even override a supported extension:
# basicConstraints= critical, DER:30:03:01:01:FF
[ crl_ext ]
# CRL extensions.
# Only issuerAltName and authorityKeyIdentifier make any sense in a CRL.
# issuerAltName=issuer:copy
authorityKeyIdentifier=keyid:always
[ proxy_cert_ext ]
# These extensions should be added when creating a proxy certificate
# This goes against PKIX guidelines but some CAs do it and some software
# requires this to avoid interpreting an end user certificate as a CA.
basicConstraints=CA:FALSE
# This is typical in keyUsage for a client certificate.
# keyUsage = nonRepudiation, digitalSignature, keyEncipherment
# PKIX recommendations harmless if included in all certificates.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer
# This stuff is for subjectAltName and issuerAltname.
# Import the email address.
# subjectAltName=email:copy
# An alternative to produce certificates that aren't
# deprecated according to PKIX.
# subjectAltName=email:move
# Copy subject details
# issuerAltName=issuer:copy
# This really needs to be in place for it to be a proxy certificate.
proxyCertInfo=critical,language:id-ppl-anyLanguage,pathlen:3,policy:foo
####################################################################
[ tsa ]
default_tsa = tsa_config1 # the default TSA section
[ tsa_config1 ]
# These are used by the TSA reply generation only.
dir = ./demoCA # TSA root directory
serial = $dir/tsaserial # The current serial number (mandatory)
crypto_device = builtin # OpenSSL engine to use for signing
signer_cert = $dir/tsacert.pem # The TSA signing certificate
# (optional)
certs = $dir/cacert.pem # Certificate chain to include in reply
# (optional)
signer_key = $dir/private/tsakey.pem # The TSA private key (optional)
signer_digest = sha256 # Signing digest to use. (Optional)
default_policy = tsa_policy1 # Policy if request did not specify it
# (optional)
other_policies = tsa_policy2, tsa_policy3 # acceptable policies (optional)
digests = sha1, sha256, sha384, sha512 # Acceptable message digests (mandatory)
accuracy = secs:1, millisecs:500, microsecs:100 # (optional)
clock_precision_digits = 0 # number of digits after dot. (optional)
ordering = yes # Is ordering defined for timestamps?
# (optional, default: no)
tsa_name = yes # Must the TSA name be included in the reply?
# (optional, default: no)
ess_cert_id_chain = no # Must the ESS cert id chain be included?
# (optional, default: no)
ess_cert_id_alg = sha1 # algorithm to compute certificate
# identifier (optional, default: sha1)
[insta] # CMP using Insta Demo CA
# Message transfer
server = pki.certificate.fi:8700
# proxy = # set this as far as needed, e.g., http://192.168.1.1:8080
# tls_use = 0
path = pkix/
# Server authentication
recipient = "/C=FI/O=Insta Demo/CN=Insta Demo CA" # or set srvcert or issuer
ignore_keyusage = 1 # potentially needed quirk
unprotected_errors = 1 # potentially needed quirk
extracertsout = insta.extracerts.pem
# Client authentication
ref = 3078 # user identification
secret = pass:insta # can be used for both client and server side
# Generic message options
cmd = ir # default operation, can be overridden on cmd line with, e.g., kur
# Certificate enrollment
subject = "/CN=openssl-cmp-test"
newkey = insta.priv.pem
out_trusted = insta.ca.crt
certout = insta.cert.pem
[pbm] # Password-based protection for Insta CA
# Server and client authentication
ref = $insta::ref # 3078
secret = $insta::secret # pass:insta
[signature] # Signature-based protection for Insta CA
# Server authentication
trusted = insta.ca.crt # does not include keyUsage digitalSignature
# Client authentication
secret = # disable PBM
key = $insta::newkey # insta.priv.pem
cert = $insta::certout # insta.cert.pem
[ir]
cmd = ir
[cr]
cmd = cr
[kur]
# Certificate update
cmd = kur
oldcert = $insta::certout # insta.cert.pem
[rr]
# Certificate revocation
cmd = rr
oldcert = $insta::certout # insta.cert.pem
[ssl_sect]
system_default = system_default_sect
[system_default_sect]
CipherString = DEFAULT:@SECLEVEL=2
vendor/tecnickcom/tc-lib-pdf-encrypt/phpcompatinfo.json
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+15
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{
"source-providers": [
{
"in": "src as source",
"exclude": "vendor",
"name": "/\\.(php)$/"
}
],
"plugins": [
],
"analysers": [
],
"services": [
]
}
vendor/tecnickcom/tc-lib-pdf-encrypt/phpunit.xml.dist
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<?xml version="1.0" encoding="UTF-8"?>
<phpunit backupGlobals="false"
bootstrap="vendor/autoload.php"
colors="true"
displayDetailsOnTestsThatTriggerDeprecations="true"
displayDetailsOnTestsThatTriggerErrors="true"
displayDetailsOnTestsThatTriggerNotices="true"
displayDetailsOnTestsThatTriggerWarnings="true"
displayDetailsOnPhpunitDeprecations="true"
processIsolation="false"
stopOnFailure="false">
<testsuites>
<testsuite name="tc-lib-pdf-encrypt Test Suite">
<directory>./test</directory>
</testsuite>
</testsuites>
<source>
<include>
<directory suffix=".php">src</directory>
</include>
</source>
<coverage>
<report>
<clover outputFile="target/coverage/coverage.xml"/>
<html outputDirectory="target/coverage" lowUpperBound="50" highLowerBound="90"/>
</report>
</coverage>
<logging>
<junit outputFile="target/logs/junit.xml"/>
</logging>
</phpunit>
vendor/tecnickcom/tc-lib-pdf-encrypt/resources/autoload.php
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<?php
/**
* autoload.php
*
* Autoloader for Tecnick.com libraries
*
* @since 2015-03-04
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2015-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
\spl_autoload_register(
function ($class) {
$prefix = 'Com\\Tecnick\\';
$len = \strlen($prefix);
if (\strncmp($prefix, $class, $len) !== 0) {
return;
}
$relative_class = \substr($class, $len);
$file = \dirname(\dirname(__DIR__)).'/'.\str_replace('\\', '/', $relative_class).'.php';
if (\file_exists($file)) {
require $file;
}
}
);
vendor/tecnickcom/tc-lib-pdf-encrypt/resources/debian/changelog
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~#PKGNAME#~ (~#VERSION#~-~#RELEASE#~) UNRELEASED; urgency=low
* Please check the
https://github.com/~#VENDOR#~/~#PROJECT#~
commit history
-- Nicola Asuni <info@tecnick.com> ~#DATE#~
vendor/tecnickcom/tc-lib-pdf-encrypt/resources/debian/control
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Source: ~#PKGNAME#~
Maintainer: Nicola Asuni <info@tecnick.com>
Section: php
Priority: optional
Build-Depends: debhelper-compat (= 13)
Standards-Version: 4.7.2
Rules-Requires-Root: no
Homepage: https://github.com/~#VENDOR#~/~#PROJECT#~
Vcs-Git: https://github.com/~#VENDOR#~/~#PROJECT#~.git
Vcs-Browser: https://github.com/~#VENDOR#~/~#PROJECT#~
Package: ~#PKGNAME#~
Provides: php-~#PROJECT#~
Architecture: all
Depends: php (>= 8.2.0), ${misc:Depends}
Recommends: php-posix
Description: PHP PDF Encrypt Library
PHP library to encrypt data for PDF.
vendor/tecnickcom/tc-lib-pdf-encrypt/resources/debian/copyright
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Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: ~#PROJECT#~
Source: https://github.com/~#VENDOR#~/~#PROJECT#~
Files: *
Copyright: Copyright 2001-2026 Nicola Asuni <info@tecnick.com>
License: LGPL-3
License: LGPL-3
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/> or
/usr/share/common-licenses/LGPL-3
vendor/tecnickcom/tc-lib-pdf-encrypt/resources/debian/rules
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+3
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#!/usr/bin/make -f
%:
dh $@
vendor/tecnickcom/tc-lib-pdf-encrypt/resources/debian/source/format
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3.0 (quilt)
vendor/tecnickcom/tc-lib-pdf-encrypt/resources/debian/watch
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version=4
opts=filenamemangle=s/.+\/v?(\d[\d\.]+)\.tar\.gz/~#PKGNAME#~_$1.orig.tar.gz/ \
https://github.com/~#VENDOR#~/~#PROJECT#~/tags \
.*/archive/refs/tags/v?(\d[\d\.]*)\.tar\.gz
vendor/tecnickcom/tc-lib-pdf-encrypt/resources/rpm/rpm.spec
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# SPEC file
%global c_vendor %{_vendor}
%global gh_owner %{_owner}
%global gh_project %{_project}
Name: %{_package}
Version: %{_version}
Release: %{_release}%{?dist}
Summary: PHP library to encrypt data for PDF
License: LGPLv3+
URL: https://github.com/%{gh_owner}/%{gh_project}
BuildArch: noarch
Requires: php(language) >= 8.2.0
Requires: php-date
Requires: php-hash
Requires: php-openssl
Requires: php-pcre
Recommends: php-posix
Provides: php-composer(%{c_vendor}/%{gh_project}) = %{version}
Provides: php-%{gh_project} = %{version}
%description
PHP library to encrypt data for PDF
%build
#(cd %{_current_directory} && make build)
%install
rm -rf "%{buildroot}"
(cd "%{_current_directory}" && make install DESTDIR="%{buildroot}")
%files
%attr(-,root,root) %{_libpath}
%attr(-,root,root) %{_docpath}
%docdir %{_docpath}
# Optional config files can be listed here when used by a project.
%changelog
* Wed Sep 23 2026 Nicola Asuni <info@tecnick.com> 1.0.0-1
- Initial Commit
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Compute.php
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<?php
declare(strict_types=1);
/**
* Compute.php
*
* @since 2008-01-02
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt;
use Com\Tecnick\Pdf\Encrypt\Exception as EncException;
/**
* Com\Tecnick\Pdf\Encrypt\Compute
*
* PHP class to generate encryption data
*
* @since 2008-01-02
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* @SuppressWarnings("PHPMD.ExcessiveClassComplexity")
*/
abstract class Compute extends \Com\Tecnick\Pdf\Encrypt\Data
{
/**
* Encrypt data using the specified encrypt type.
*
* @param int|string|false $type Encrypt type.
* @param string $data Data string to encrypt.
* @param string $key Encryption key.
* @param int $objnum Object number.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function encrypt(int|string|false $type, string $data = '', string $key = '', int $objnum = 0): string
{
if (!$this->encryptdata['encrypted'] || $type === false) {
return $data;
}
$encoder = self::ENCMAP[$type] ?? null;
if ($encoder === null) {
throw new EncException('unknown encryption type: ' . $type);
}
if ($key === '' && $type === $this->encryptdata['mode']) {
if ($this->encryptdata['mode'] < 3) {
$key = $this->getObjectKey($objnum);
}
if ($this->encryptdata['mode'] >= 3) { // mode >= 3: AES-256 (R5 or R6), use the full document key
$key = $this->encryptdata['key'];
}
}
return $this->encryptWithEncoderName($encoder, $data, $key);
}
/**
* Dispatch to a concrete encryptor class for static analyzers.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptWithEncoderName(string $encoder, string $data, string $key): string
{
return match ($encoder) {
'RCFourFive' => $this->encryptWithRCFourFive($data, $key),
'RCFourSixteen' => $this->encryptWithRCFourSixteen($data, $key),
'AESSixteen' => $this->encryptWithAESSixteen($data, $key),
'AESThirtytwo' => $this->encryptWithAESThirtytwo($data, $key),
'RCFour' => $this->encryptWithRCFour($data, $key),
'AES' => $this->encryptWithAES($data, $key),
'AESnopad' => $this->encryptWithAESnopad($data, $key),
'MDFiveSixteen' => $this->encryptWithMDFiveSixteen($data, $key),
'Seed' => $this->encryptSeed($data, $key),
default => throw new EncException('unknown encryption type: ' . $encoder),
};
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptWithRCFourFive(string $data, string $key): string
{
$enc = new \Com\Tecnick\Pdf\Encrypt\Type\RCFourFive();
return $enc->encrypt($data, $key);
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptWithRCFourSixteen(string $data, string $key): string
{
$enc = new \Com\Tecnick\Pdf\Encrypt\Type\RCFourSixteen();
return $enc->encrypt($data, $key);
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptWithAESSixteen(string $data, string $key): string
{
$enc = new \Com\Tecnick\Pdf\Encrypt\Type\AESSixteen();
return $enc->encrypt($data, $key);
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptWithAESThirtytwo(string $data, string $key): string
{
$enc = new \Com\Tecnick\Pdf\Encrypt\Type\AESThirtytwo();
return $enc->encrypt($data, $key);
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptWithRCFour(string $data, string $key): string
{
$enc = new \Com\Tecnick\Pdf\Encrypt\Type\RCFour();
return $enc->encrypt($data, $key);
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptWithAES(string $data, string $key): string
{
$enc = new \Com\Tecnick\Pdf\Encrypt\Type\AES();
return $enc->encrypt($data, $key);
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptWithAESnopad(string $data, string $key): string
{
$enc = new \Com\Tecnick\Pdf\Encrypt\Type\AESnopad();
return $enc->encrypt($data, $key);
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptWithMDFiveSixteen(string $data, string $key): string
{
$enc = new \Com\Tecnick\Pdf\Encrypt\Type\MDFiveSixteen();
return $enc->encrypt($data, $key);
}
/**
* Encrypt using the Seed generator and normalize random errors.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptSeed(string $data, string $key): string
{
try {
$enc = new \Com\Tecnick\Pdf\Encrypt\Type\Seed();
return $enc->encrypt($data, $key);
} catch (\Random\RandomException $e) {
throw new EncException('Unable to generate random seed', 0, $e);
}
}
/**
* Compute encryption key depending on object number where the encrypted data is stored.
* This is used for all strings and streams without crypt filter specifier.
*
* @param int $objnum Object number.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function getObjectKey(int $objnum): string
{
$objkey = $this->encryptdata['key'] . \pack('VXxx', $objnum);
if ($this->encryptdata['mode'] === 2) {
// AES-128 padding
$objkey .= "\x73\x41\x6C\x54"; // sAlT
}
$objkey = \substr($this->encrypt('MD5-16', $objkey, 'H*'), 0, (int) (($this->encryptdata['Length'] / 8) + 5));
return \substr($objkey, 0, 16);
}
/**
* Convert encryption P value to a string of bytes, low-order byte first.
*
* @param int $protection 32bit encryption permission value (P value).
*/
public function getEncPermissionsString(int $protection): string
{
$binprot = \sprintf('%032b', $protection);
return (
\chr((int) \bindec(\substr($binprot, 24, 8)) & 0xFF)
. \chr((int) \bindec(\substr($binprot, 16, 8)) & 0xFF)
. \chr((int) \bindec(\substr($binprot, 8, 8)) & 0xFF)
. \chr((int) \bindec(\substr($binprot, 0, 8)) & 0xFF)
);
}
/**
* Return the permission code used on encryption (P value).
*
* @param array<string> $permissions The set of permissions (specify the ones you want to block).
* @param int $mode Encryption strength: 0 = RC4-40 (deprecated); 1 = RC4-128 (deprecated);
* 2 = AES-128; 3 = AES-256 R5; 4 = AES-256 R6 (PDF 2.0 / ISO 32000-2).
*/
public function getUserPermissionCode(array $permissions, int $mode = 0): int
{
$protection = 2_147_422_012; // 32 bit: (01111111 11111111 00001111 00111100)
foreach ($permissions as $permission) {
$permBit = self::PERMBITS[$permission] ?? null;
if ($permBit === null) {
continue;
}
if ($mode <= 0 && $permBit > 32) {
continue;
}
// set only valid permissions
if ($permBit === 2) {
// the logic for bit 2 is inverted (cleared by default)
$protection += $permBit;
continue;
}
$protection -= $permBit;
}
return $protection;
}
/**
* Compute UE value
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function getUEValue(): string
{
if ($this->encryptdata['mode'] === 4) { // R6: use Algorithm 2.B
return $this->encrypt(
'AESnopad',
$this->encryptdata['key'],
$this->hash2B($this->encryptdata['user_password'], $this->encryptdata['UKS']),
);
}
return $this->encrypt(
'AESnopad',
$this->encryptdata['key'],
\hash('sha256', $this->encryptdata['user_password'] . $this->encryptdata['UKS'], true),
);
}
/**
* Compute OE value
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function getOEValue(): string
{
if ($this->encryptdata['mode'] === 4) { // R6: use Algorithm 2.B
return $this->encrypt(
'AESnopad',
$this->encryptdata['key'],
$this->hash2B($this->encryptdata['owner_password'], $this->encryptdata['OKS'], $this->encryptdata['U']),
);
}
return $this->encrypt(
'AESnopad',
$this->encryptdata['key'],
\hash(
'sha256',
$this->encryptdata['owner_password'] . $this->encryptdata['OKS'] . $this->encryptdata['U'],
true,
),
);
}
/**
* Compute U value
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function getUValue(): string
{
if ($this->encryptdata['mode'] === 0) { // RC4-40
return $this->encrypt('RC4', self::ENCPAD, $this->encryptdata['key']);
}
if ($this->encryptdata['mode'] < 3) { // RC4-128, AES-128
$tmp = $this->encrypt('MD5-16', self::ENCPAD . $this->encryptdata['fileid'], 'H*');
$enc = $this->encrypt('RC4', $tmp, $this->encryptdata['key']);
$len = \strlen($tmp);
for ($idx = 1; $idx <= 19; ++$idx) {
$ekey = '';
for ($jdx = 0; $jdx < $len; ++$jdx) {
$ekey .= \chr((\ord($this->encryptdata['key'][$jdx]) ^ $idx) & 0xFF);
}
$enc = $this->encrypt('RC4', $enc, $ekey);
}
$enc .= \str_repeat("\x00", 16);
return \substr($enc, 0, 32);
}
// AES-256 ($this->encryptdata['mode'] >= 3)
return $this->getUValueAes256();
}
/**
* Compute O value
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function getOValue(): string
{
if ($this->encryptdata['mode'] < 3) { // RC4-40, RC4-128, AES-128
$tmp = $this->encrypt('MD5-16', $this->encryptdata['owner_password'], 'H*');
if ($this->encryptdata['mode'] > 0) {
for ($idx = 0; $idx < 50; ++$idx) {
$tmp = $this->encrypt('MD5-16', $tmp, 'H*');
}
}
$owner_key = \substr($tmp, 0, (int) ($this->encryptdata['Length'] / 8));
$enc = $this->encrypt('RC4', $this->encryptdata['user_password'], $owner_key);
if ($this->encryptdata['mode'] > 0) {
$len = \strlen($owner_key);
for ($idx = 1; $idx <= 19; ++$idx) {
$ekey = '';
for ($jdx = 0; $jdx < $len; ++$jdx) {
$ekey .= \chr((\ord($owner_key[$jdx]) ^ $idx) & 0xFF);
}
$enc = $this->encrypt('RC4', $enc, $ekey);
}
}
return $enc;
}
// AES-256 ($this->encryptdata['mode'] >= 3)
return $this->getOValueAes256();
}
/**
* Generate a fresh 8-byte validation salt and 8-byte key salt for AES-256
* (R5/R6) password hashing (ISO 32000 Algorithm 8/9).
*
* @return array{0: string, 1: string} [validationSalt, keySalt]
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function generateAes256Salts(): array
{
$seed = $this->encrypt('MD5-16', $this->encrypt('seed'), 'H*');
return [\substr($seed, 0, 8), \substr($seed, 8, 8)];
}
/**
* Compute the U value for AES-256 (R5/R6).
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function getUValueAes256(): string
{
[$this->encryptdata['UVS'], $this->encryptdata['UKS']] = $this->generateAes256Salts();
$uHash = $this->encryptdata['mode'] === 4
? $this->hash2B($this->encryptdata['user_password'], $this->encryptdata['UVS']) // R6: Algorithm 2.B
: \hash('sha256', $this->encryptdata['user_password'] . $this->encryptdata['UVS'], true); // R5: SHA-256
return $uHash . $this->encryptdata['UVS'] . $this->encryptdata['UKS'];
}
/**
* Compute the O value for AES-256 (R5/R6).
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function getOValueAes256(): string
{
[$this->encryptdata['OVS'], $this->encryptdata['OKS']] = $this->generateAes256Salts();
$oHash = $this->encryptdata['mode'] === 4
? $this->hash2B($this->encryptdata['owner_password'], $this->encryptdata['OVS'], $this->encryptdata['U']) // R6
: \hash(
'sha256',
$this->encryptdata['owner_password'] . $this->encryptdata['OVS'] . $this->encryptdata['U'],
true,
); // R5: SHA-256
return $oHash . $this->encryptdata['OVS'] . $this->encryptdata['OKS'];
}
/**
* Compute Algorithm 2.B hash (ISO 32000-2 / PDF 2.0) for AES-256 R6 key derivation.
*
* Implements the iterative SHA-256/384/512 + AES-128-CBC hash described in
* ISO 32000-2 section 7.6.4.3.4 (Algorithm 2.B).
*
* @param string $password UTF-8 password (already truncated to ≤ 127 bytes).
* @param string $salt 8-byte validation or key salt.
* @param string $userHash 48-byte U value for owner-side calculations; empty for user-side.
*
* @throws EncException When the internal AES-128-CBC step fails.
*/
protected function hash2B(#[\SensitiveParameter] string $password, string $salt, string $userHash = ''): string
{
$hashK = \hash('sha256', $password . $salt, true);
$round = 0;
do {
// inputBlock length is always 64 * (len(password) + 32 + len(userHash)).
// 64 is a multiple of 16, so inputBlock is always AES-block-aligned (no padding needed).
$inputBlock = \str_repeat($password . $hashK . $userHash, 64);
$encrypted = \openssl_encrypt(
$inputBlock,
'aes-128-cbc',
\substr($hashK, 0, 16),
OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING,
\substr($hashK, 16, 16),
);
if ($encrypted === false) {
throw new EncException('AES-128-CBC encryption failed in hash2B');
}
$sum = 0;
for ($idx = 0; $idx < 16; ++$idx) {
$sum += \ord($encrypted[$idx]);
}
$algo = match ($sum % 3) {
0 => 'sha256',
1 => 'sha384',
default => 'sha512',
};
$hashK = \hash($algo, $encrypted, true);
++$round;
$lastByte = \ord($encrypted[\strlen($encrypted) - 1]);
} while (!($round >= 64 && $lastByte <= ($round - 32)));
return \substr($hashK, 0, 32);
}
/**
* Compute encryption key
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function generateEncryptionKey(): void
{
if ($this->encryptdata['pubkey']) {
$this->generatePublicEncryptionKey();
return;
}
// standard mode
$this->generateStandardEncryptionKey();
}
/**
* Compute standard encryption key
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function generateStandardEncryptionKey(): void
{
$keybytelen = $this->encryptdata['Length'] / 8;
if ($this->encryptdata['mode'] >= 3) { // AES-256 (R5 or R6)
$this->generateAes256StandardEncryptionKey((int) $keybytelen);
return;
}
$this->generateLegacyStandardEncryptionKey((int) $keybytelen);
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function generateAes256StandardEncryptionKey(int $keybytelen): void
{
// generate 256 bit random key
$this->encryptdata['key'] = \substr(\hash('sha256', $this->encrypt('seed'), true), 0, $keybytelen);
// truncate passwords
$this->encryptdata['user_password'] = \substr($this->encryptdata['user_password'], 0, 127);
$this->encryptdata['owner_password'] = \substr($this->encryptdata['owner_password'], 0, 127);
$this->encryptdata['U'] = $this->getUValue();
$this->encryptdata['UE'] = $this->getUEValue();
$this->encryptdata['O'] = $this->getOValue();
$this->encryptdata['OE'] = $this->getOEValue();
$this->encryptdata['P'] = $this->encryptdata['protection'];
// Computing the encryption dictionary's Perms (permissions) value
$perms = $this->getEncPermissionsString($this->encryptdata['protection']); // bytes 0-3
$perms .= \chr(255) . \chr(255) . \chr(255) . \chr(255); // bytes 4-7
$perms .= $this->encryptdata['EncryptMetadata'] ? 'T' : 'F'; // byte 8: EncryptMetadata flag
$perms .= 'adb'; // bytes 9-11
$perms .= \openssl_random_pseudo_bytes(4); // bytes 12-15 must be random per PDF spec
$this->encryptdata['perms'] = $this->encrypt('AESnopad', $perms, $this->encryptdata['key']);
}
/**
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function generateLegacyStandardEncryptionKey(int $keybytelen): void
{
// RC4-40, RC4-128, AES-128
// Pad passwords
$this->encryptdata['user_password'] = \substr($this->encryptdata['user_password'] . self::ENCPAD, 0, 32);
$this->encryptdata['owner_password'] = \substr($this->encryptdata['owner_password'] . self::ENCPAD, 0, 32);
$this->encryptdata['O'] = $this->getOValue();
// get default permissions (reverse byte order)
$permissions = $this->getEncPermissionsString($this->encryptdata['protection']);
// Compute encryption key
$tmp = $this->encrypt(
'MD5-16',
$this->encryptdata['user_password'] . $this->encryptdata['O'] . $permissions . $this->encryptdata['fileid'],
'H*',
);
if ($this->encryptdata['mode'] > 0) {
for ($idx = 0; $idx < 50; ++$idx) {
$tmp = $this->encrypt('MD5-16', \substr($tmp, 0, $keybytelen), 'H*');
}
}
$this->encryptdata['key'] = \substr($tmp, 0, $keybytelen);
$this->encryptdata['U'] = $this->getUValue();
$this->encryptdata['P'] = $this->encryptdata['protection'];
}
/**
* Compute public encryption key
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*
* @SuppressWarnings("PHPMD.CyclomaticComplexity")
* @SuppressWarnings("PHPMD.NPathComplexity")
* @SuppressWarnings("PHPMD.ExcessiveMethodLength")
*/
protected function generatePublicEncryptionKey(): void
{
$keybytelen = (int) ($this->encryptdata['Length'] / 8);
// random 20-byte seed
$seed = \sha1($this->encrypt('seed'), true);
$recipient_bytes = '';
$pubkeys = $this->encryptdata['pubkeys'] ?? throw new EncException('Missing pubkeys');
foreach ($pubkeys as $pubkey) {
$recipient_bytes .= $this->getEncryptedRecipientBytes($pubkey, $seed);
}
// calculate encryption key
if ($this->encryptdata['mode'] >= 3) { // AES-256 (R5/R6)
$this->encryptdata['key'] = \substr(\hash('sha256', $seed . $recipient_bytes, true), 0, $keybytelen);
return;
}
// RC4-40, RC4-128, AES-128
$this->encryptdata['key'] = \substr(\sha1($seed . $recipient_bytes, true), 0, $keybytelen);
}
/**
* @param array{c:string,p:array<string>} $pubkey
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function getEncryptedRecipientBytes(array $pubkey, string $seed): string
{
// for each public certificate
$pkprotection = $this->getUserPermissionCode($pubkey['p'], $this->encryptdata['mode']);
// get default permissions (reverse byte order)
$pkpermissions = $this->getEncPermissionsString($pkprotection);
// envelope data
$envelope = $seed . $pkpermissions;
// write the envelope data to a temporary file
$tempkeyfile = \tempnam(
\sys_get_temp_dir(),
'__tcpdf_key_' . \md5($this->encryptdata['fileid'] . $envelope) . '_',
);
if ($tempkeyfile === false) {
throw new EncException('Unable to generate temporary key file name');
}
if (\file_put_contents($tempkeyfile, $envelope) === false) {
\unlink($tempkeyfile);
throw new EncException('Unable to create temporary key file: ' . $tempkeyfile);
}
$tempencfile = \tempnam(
\sys_get_temp_dir(),
'__tcpdf_enc_' . \md5($this->encryptdata['fileid'] . $envelope) . '_',
);
if ($tempencfile === false) {
// The key file was already created; remove it before bailing out.
\unlink($tempkeyfile);
throw new EncException('Unable to generate temporary key file name');
}
try {
return $this->encryptRecipientEnvelope($pubkey, $tempkeyfile, $tempencfile);
} finally {
// Always remove the temporary files: $tempkeyfile holds the plaintext
// envelope (sensitive key material) and must never be left behind.
\unlink($tempkeyfile);
\unlink($tempencfile);
}
}
/**
* Encrypt the envelope file to the recipient's certificate and extract the
* resulting PKCS#7 signature bytes.
*
* @param array{c:string,p:array<string>} $pubkey Recipient certificate/permissions.
* @param string $tempkeyfile Path to the plaintext envelope file.
* @param string $tempencfile Path to the PKCS#7 output file.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function encryptRecipientEnvelope(array $pubkey, string $tempkeyfile, string $tempencfile): string
{
if (!\function_exists('openssl_pkcs7_encrypt')) {
throw new EncException(
'Unable to encrypt the file: '
. $tempkeyfile
. "\n"
. 'Public-Key Security requires openssl_pkcs7_encrypt.',
);
}
$pkey = \file_get_contents($pubkey['c']);
if ($pkey === false) {
throw new EncException('Unable to read public key file: ' . $pubkey['c']);
}
if (!\openssl_pkcs7_encrypt($tempkeyfile, $tempencfile, $pkey, [], PKCS7_BINARY)) {
throw new EncException(
'Unable to encrypt the file: '
. $tempkeyfile
. "\n"
. 'OpenSSL error: '
. (string) \openssl_error_string(),
);
}
// read encryption signature
$signature = \file_get_contents($tempencfile);
if ($signature === false) {
throw new EncException('Unable to read signature file: ' . $tempencfile);
}
$sigcontentpos = \strpos($signature, 'Content-Disposition');
if ($sigcontentpos === false) {
throw new EncException('Unable to find signature content');
}
// extract signature
$signature = \substr($signature, $sigcontentpos);
$tmparr = \explode("\n\n", $signature);
$signature = \trim($tmparr[1] ?? '');
unset($tmparr);
// decode signature
$signature = \base64_decode($signature, strict: true);
if ($signature === false) {
throw new EncException('Unable to decode signature: ' . $tempencfile);
}
$sigarr = \unpack('H*', $signature);
if ($sigarr === false) {
throw new EncException('Unable to unpack signature: ' . $tempencfile);
}
// convert signature to hex
$hexsignature = (string) \current($sigarr);
if ($hexsignature === '') {
throw new EncException('Unable to convert signature: ' . $tempencfile);
}
// store signature on recipients array
$this->encryptdata['Recipients'][] = $hexsignature;
// The bytes of each item in the Recipients array of PKCS#7 objects
// in the order in which they appear in the array
return $signature;
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Data.php
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<?php
declare(strict_types=1);
/**
* Data.php
*
* @since 2008-01-02
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt;
/**
* Com\Tecnick\Pdf\Encrypt\Data
*
* Encrypt common data
*
* @since 2008-01-02
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
abstract class Data extends \Com\Tecnick\Pdf\Encrypt\Output
{
/**
* Encryption padding string.
*
* @var string
*/
protected const ENCPAD =
"\x28\xBF\x4E\x5E\x4E\x75\x8A\x41\x64\x00"
. "\x4E\x56\xFF\xFA\x01\x08\x2E\x2E\x00\xB6"
. "\xD0\x68\x3E\x80\x2F\x0C\xA9\xFE\x64\x53"
. "\x69\x7A";
/**
* Map permission modes and bits.
*
* @var array<string, int>
*/
protected const PERMBITS = [
// bit 2 -- inverted logic: cleared by default
// When set permits change of encryption and enables all other permissions.
'owner' => 2,
// bit 3
// Print the document.
'print' => 4,
// bit 4
// Modify the contents of the document by operations other than those controlled
// by 'fill-forms', 'extract' and 'assemble'.
'modify' => 8,
// bit 5
// Copy or otherwise extract text and graphics from the document.
'copy' => 16,
// bit 6
// Add or modify text annotations, fill in interactive form fields, and,
// if 'modify' is also set, create or modify interactive form fields
// (including signature fields).
'annot-forms' => 32,
// bit 9
// Fill in existing interactive form fields (including signature fields),
// even if 'annot-forms' is not specified.
'fill-forms' => 256,
// bit 10
// Extract text and graphics (in support of accessibility to users with
// disabilities or for other purposes).
'extract' => 512,
// bit 11
// Assemble the document (insert, rotate, or delete pages and create bookmarks
// or thumbnail images), even if 'modify' is not set.
'assemble' => 1024,
// bit 12
// Print the document to a representation from which a faithful digital copy of the
// PDF content could be generated. When this is not set, printing is limited to a
// low-level representation of the appearance, possibly of degraded quality.
'print-high' => 2048,
];
/**
* Encryption settings.
*
* @var array<int, array{
* 'V': int,
* 'Length': int,
* 'CF': array{
* 'CFM': string,
* 'Length'?: int,
* 'AuthEvent': string,
* },
* 'SubFilter': string,
* 'Recipients': array<string, string>,
* }>
*/
protected const ENCRYPT_SETTINGS = [
0 => [
// RC4 40 bit
'V' => 1,
'Length' => 40,
'CF' => [
'CFM' => 'V2',
'AuthEvent' => 'DocOpen',
],
'SubFilter' => '',
'Recipients' => [],
],
1 => [
// RC4 128 bit
'V' => 2,
'Length' => 128,
'CF' => [
'CFM' => 'V2',
'AuthEvent' => 'DocOpen',
],
'SubFilter' => 'adbe.pkcs7.s4',
'Recipients' => [],
],
2 => [
// AES 128 bit
'V' => 4,
'Length' => 128,
'CF' => [
'CFM' => 'AESV2',
'Length' => 16,
'AuthEvent' => 'DocOpen',
],
'SubFilter' => 'adbe.pkcs7.s5',
'Recipients' => [],
],
3 => [
// AES 256 bit (R5, Acrobat 9 / PDF 1.7 extension)
'V' => 5,
'Length' => 256,
'CF' => [
'CFM' => 'AESV3',
'Length' => 32,
'AuthEvent' => 'DocOpen',
],
'SubFilter' => 'adbe.pkcs7.s5',
'Recipients' => [],
],
4 => [
// AES 256 bit R6 (PDF 2.0 / ISO 32000-2)
'V' => 6,
'Length' => 256,
'CF' => [
'CFM' => 'AESV3',
'Length' => 32,
'AuthEvent' => 'DocOpen',
],
'SubFilter' => 'adbe.pkcs7.s5',
'Recipients' => [],
],
];
/**
* Define a list of available encrypt encoders.
*
* @var array<int|string, string>
*/
protected const ENCMAP = [
0 => 'RCFourFive', // RC4-40
1 => 'RCFourSixteen', // RC4-128
2 => 'AESSixteen', // AES-128
3 => 'AESThirtytwo', // AES-256 (R5)
4 => 'AESThirtytwo', // AES-256 (R6)
'RC4' => 'RCFour', // RC4-40
'RC4-40' => 'RCFourFive', // RC4-40
'RC4-128' => 'RCFourSixteen', // RC4-128
'AES' => 'AES', // AES-256
'AES-128' => 'AESSixteen', // AES-128
'AES-256' => 'AESThirtytwo', // AES-256
'AESnopad' => 'AESnopad', // AES - no padding
'MD5-16' => 'MDFiveSixteen', // MD5-16
'seed' => 'Seed', // Random seed string
];
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Decrypt.php
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<?php
declare(strict_types=1);
/**
* Decrypt.php
*
* @since 2026-04-30
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt;
use Com\Tecnick\Pdf\Encrypt\Type\AESnopad;
/**
* Com\Tecnick\Pdf\Encrypt\Decrypt
*
* Authenticates a password (or private key for public-key mode) against a PDF
* encryption dictionary and recovers the document file-encryption key.
*
* Usage:
* $dec = new Decrypt($encrypt->getEncryptionData());
* if ($dec->authenticate('userpass')) {
* $plaintext = $dec->decryptString($ciphertext, $objnum);
* }
*
* After successful authentication the derived key is stored internally and:
* - decryptString() decrypts PDF string/stream objects.
* - getObjectKey() returns the per-object key for AES-128 streams.
* - getDocumentKey() returns the raw 32-byte (or shorter) file key.
*
* @since 2026-04-30
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* @phpstan-import-type TEncryptData from Output
*
* @phpstan-type TDecryptInput TEncryptData|array{
* 'V': int,
* 'Length': int,
* 'O': string,
* 'U': string,
* 'P': int,
* 'fileid': string,
* 'mode': int,
* 'OE'?: string,
* 'UE'?: string,
* 'EncryptMetadata'?: bool,
* 'pubkey'?: bool,
* 'Recipients'?: array<array-key, string>,
* }
*
* @SuppressWarnings("PHPMD.ExcessiveClassComplexity")
*/
class Decrypt extends \Com\Tecnick\Pdf\Encrypt\Compute
{
/**
* Initialise the decryptor from an encryption dictionary.
*
* Accepts the array returned by Encrypt::getEncryptionData() or any array
* that satisfies the TDecryptInput shape. All fields not present in the
* input are filled with the defaults defined in Output::$encryptdata.
*
* @param TDecryptInput $input Encryption dictionary fields.
*/
public function __construct(array $input)
{
$this->encryptdata['V'] = (int) $input['V'];
$this->encryptdata['Length'] = (int) $input['Length'];
$this->encryptdata['O'] = $input['O'];
$this->encryptdata['U'] = $input['U'];
$this->encryptdata['P'] = (int) $input['P'];
$this->encryptdata['fileid'] = $input['fileid'];
$this->encryptdata['mode'] = (int) $input['mode'];
$this->encryptdata['EncryptMetadata'] = $input['EncryptMetadata'] ?? $this->encryptdata['EncryptMetadata'];
$this->encryptdata['pubkey'] = $input['pubkey'] ?? $this->encryptdata['pubkey'];
if (\array_key_exists('Recipients', $input)) {
$this->encryptdata['Recipients'] = $input['Recipients'];
}
if (\array_key_exists('OE', $input)) {
$this->encryptdata['OE'] = $input['OE'];
}
if (\array_key_exists('UE', $input)) {
$this->encryptdata['UE'] = $input['UE'];
}
// Ensure encrypt()-based primitives (RC4, MD5-16) are active for key derivation.
$this->encryptdata['encrypted'] = true;
// Clear the key: it must be recovered by a successful authenticate() call.
$this->encryptdata['key'] = '';
}
// -------------------------------------------------------------------------
// Public API
// -------------------------------------------------------------------------
/**
* Authenticate using a password and/or private key.
*
* Tries the supplied string first as the user password, then as the owner
* password. For public-key mode, $privkeyPath must be the path to a PEM
* file containing the recipient's certificate and private key; $password is
* ignored in that case.
*
* On success the derived file-encryption key is stored internally.
*
* @param string $password UTF-8 password to test (ignored for pubkey mode).
* @param string $privkeyPath Path to PEM file for public-key mode.
*
* @return bool True when authentication succeeds.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function authenticate(#[\SensitiveParameter] string $password, string $privkeyPath = ''): bool
{
if ($this->encryptdata['pubkey']) {
return $this->authenticatePublicKey($privkeyPath);
}
if ($this->encryptdata['mode'] >= 3) {
return $this->authenticatePasswordR5R6($password);
}
return $this->authenticatePasswordR24($password);
}
/**
* Decrypt a PDF string or stream object.
*
* Must be called after a successful authenticate() call.
*
* For RC4 modes (0, 1) the operation is symmetric: the same method that
* encrypts also decrypts. For AES modes (2, 3, 4) the first 16 bytes of
* $data are the random IV; the remainder is the ciphertext. The PKCS#7
* padding applied during encryption is stripped, so the exact original
* plaintext is returned.
*
* @param string $data Encrypted string/stream data.
* @param int $objnum PDF object number (used for per-object key derivation
* in RC4 and AES-128 modes).
*
* @return string Decrypted data.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function decryptString(string $data, int $objnum = 0): string
{
if (!$this->encryptdata['encrypted'] || $this->encryptdata['key'] === '') {
return $data;
}
$mode = $this->encryptdata['mode'];
if ($mode < 2) {
// RC4 is symmetric: the same encrypt() call decrypts.
return $this->encrypt($mode, $data, '', $objnum);
}
return $this->decryptAes($data, $objnum);
}
/**
* Return the recovered file-encryption key.
*
* @return string Raw binary key (empty string before authenticate() succeeds).
*/
public function getDocumentKey(): string
{
return $this->encryptdata['key'];
}
// -------------------------------------------------------------------------
// RC4 / R2–R4 authentication (modes 0, 1, 2)
// -------------------------------------------------------------------------
/**
* Authenticate a password for R2–R4 (RC4-40, RC4-128, AES-128).
*
* First tries the password as the user password; on failure tries it as the
* owner password.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function authenticatePasswordR24(#[\SensitiveParameter] string $password): bool
{
$paddedPass = \substr($password . self::ENCPAD, 0, 32);
if ($this->authenticateUserR24($paddedPass)) {
return true;
}
return $this->authenticateOwnerR24($password);
}
/**
* Authenticate $paddedPass as the user password for R2–R4.
*
* Derives a candidate encryption key from the padded password and verifies
* it against the stored U value using Algorithm 6 (PDF spec §7.6.3.4).
* On success the verified key remains stored in $encryptdata['key'].
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function authenticateUserR24(string $paddedPass): bool
{
$savedKey = $this->encryptdata['key'];
$this->encryptdata['key'] = $this->deriveKeyR24($paddedPass);
$computedU = $this->getUValue();
if ($this->compareUserHashR24($computedU)) {
return true;
}
$this->encryptdata['key'] = $savedKey;
return false;
}
/**
* Authenticate $password as the owner password for R2–R4.
*
* Derives the owner key, decrypts the O entry to recover the candidate user
* password, then delegates to authenticateUserR24.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function authenticateOwnerR24(#[\SensitiveParameter] string $password): bool
{
$paddedOwner = \substr($password . self::ENCPAD, 0, 32);
$ownerKey = $this->deriveOwnerKeyR24($paddedOwner);
$candidateUserPass = $this->decryptOToUserPass($ownerKey);
return $this->authenticateUserR24($candidateUserPass);
}
/**
* Derive the file encryption key for R2–R4 from a 32-byte padded user password.
*
* Implements Algorithm 2 from PDF spec §7.6.3.3.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function deriveKeyR24(string $paddedPass): string
{
$keybytelen = (int) ($this->encryptdata['Length'] / 8);
$permBytes = $this->getEncPermissionsString($this->encryptdata['P']);
$tmp = $this->encrypt(
'MD5-16',
$paddedPass . $this->encryptdata['O'] . $permBytes . $this->encryptdata['fileid'],
);
if ($this->encryptdata['mode'] > 0) {
for ($idx = 0; $idx < 50; ++$idx) {
$tmp = $this->encrypt('MD5-16', \substr($tmp, 0, $keybytelen));
}
}
return \substr($tmp, 0, $keybytelen);
}
/**
* Compare a freshly computed U value against the stored one for R2–R4.
*
* R2 requires an exact 32-byte match; R3/R4 compare only the first 16 bytes.
*/
protected function compareUserHashR24(string $computedU): bool
{
if ($this->encryptdata['mode'] === 0) {
return $computedU === $this->encryptdata['U'];
}
return \substr($computedU, 0, 16) === \substr($this->encryptdata['U'], 0, 16);
}
/**
* Derive the owner key from a 32-byte padded owner password for R2–R4.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function deriveOwnerKeyR24(string $paddedOwnerPass): string
{
$keybytelen = (int) ($this->encryptdata['Length'] / 8);
$tmp = $this->encrypt('MD5-16', $paddedOwnerPass);
if ($this->encryptdata['mode'] > 0) {
for ($idx = 0; $idx < 50; ++$idx) {
$tmp = $this->encrypt('MD5-16', \substr($tmp, 0, $keybytelen));
}
}
return \substr($tmp, 0, $keybytelen);
}
/**
* Decrypt the O entry using the owner key to recover the candidate user password.
*
* Reverses the iterative RC4 encryption applied by getOValue() in Compute.
*
* @SuppressWarnings("PHPMD.CyclomaticComplexity")
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function decryptOToUserPass(string $ownerKey): string
{
if ($this->encryptdata['mode'] === 0) {
return $this->encrypt('RC4', $this->encryptdata['O'], $ownerKey);
}
$keyLen = \strlen($ownerKey);
$candidate = $this->encryptdata['O'];
for ($idx = 19; $idx >= 1; --$idx) {
$xoredKey = '';
for ($jdx = 0; $jdx < $keyLen; ++$jdx) {
$xoredKey .= \chr((\ord($ownerKey[$jdx]) ^ $idx) & 0xFF);
}
$candidate = $this->encrypt('RC4', $candidate, $xoredKey);
}
return $this->encrypt('RC4', $candidate, $ownerKey);
}
// -------------------------------------------------------------------------
// AES-256 / R5–R6 authentication (modes 3, 4)
// -------------------------------------------------------------------------
/**
* Authenticate a password for R5 (mode 3) or R6 (mode 4).
*
* Tries the password as the user password, then as the owner password.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function authenticatePasswordR5R6(#[\SensitiveParameter] string $password): bool
{
if ($this->authenticateUserR5R6($password)) {
$this->recoverKeyFromUser($password);
return true;
}
if ($this->authenticateOwnerR5R6($password)) {
$this->recoverKeyFromOwner($password);
return true;
}
return false;
}
/**
* Verify $password as the user password for R5/R6 (Algorithm 11/13).
*
* Computes hash(password ∥ U[32..39]) and compares to U[0..32].
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function authenticateUserR5R6(#[\SensitiveParameter] string $password): bool
{
$uvs = \substr($this->encryptdata['U'], 32, 8);
$expected = \substr($this->encryptdata['U'], 0, 32);
return $this->hashR5R6($password, $uvs) === $expected;
}
/**
* Verify $password as the owner password for R5/R6 (Algorithm 13/15).
*
* Computes hash(password ∥ O[32..39] ∥ U[0..48]) and compares to O[0..32].
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function authenticateOwnerR5R6(#[\SensitiveParameter] string $password): bool
{
$ovs = \substr($this->encryptdata['O'], 32, 8);
$userHash = \substr($this->encryptdata['U'], 0, 48);
$expected = \substr($this->encryptdata['O'], 0, 32);
return $this->hashR5R6($password, $ovs, $userHash) === $expected;
}
/**
* Recover the file encryption key using the verified user password (Algorithm 12/14).
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function recoverKeyFromUser(#[\SensitiveParameter] string $password): void
{
$uks = \substr($this->encryptdata['U'], 40, 8);
$hashkey = $this->hashR5R6($password, $uks);
$aesnopad = new AESnopad();
$this->encryptdata['key'] = $aesnopad->decrypt($this->encryptdata['UE'], $hashkey);
}
/**
* Recover the file encryption key using the verified owner password (Algorithm 14/16).
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function recoverKeyFromOwner(#[\SensitiveParameter] string $password): void
{
$oks = \substr($this->encryptdata['O'], 40, 8);
$userHash = \substr($this->encryptdata['U'], 0, 48);
$hashkey = $this->hashR5R6($password, $oks, $userHash);
$aesnopad = new AESnopad();
$this->encryptdata['key'] = $aesnopad->decrypt($this->encryptdata['OE'], $hashkey);
}
/**
* Compute the R5/R6 password hash.
*
* R5 (mode 3): SHA-256(password ∥ salt ∥ userHash).
* R6 (mode 4): Algorithm 2.B (ISO 32000-2 §7.6.4.3.4).
*
* @param string $password UTF-8 password (truncated to ≤ 127 bytes by caller).
* @param string $salt 8-byte validation or key salt.
* @param string $userHash 48-byte U value for owner-side; empty for user-side.
*
* @return string 32-byte binary hash.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function hashR5R6(#[\SensitiveParameter] string $password, string $salt, string $userHash = ''): string
{
if ($this->encryptdata['mode'] === 4) {
return $this->hash2B($password, $salt, $userHash);
}
return \hash('sha256', $password . $salt . $userHash, true);
}
// -------------------------------------------------------------------------
// AES stream/string decryption helper
// -------------------------------------------------------------------------
/**
* Decrypt an AES-encrypted PDF string or stream (modes 2, 3, 4).
*
* The ciphertext is prefixed with a 16-byte random IV as required by the
* PDF specification (§7.6.3). Returns an empty string when the data is
* shorter than the IV length.
*
* The string/stream ciphertext is produced with PKCS#7 block padding
* (AESV2/AESV3 crypt filters, ISO 32000), so decryption is performed
* WITHOUT OPENSSL_ZERO_PADDING: OpenSSL validates and strips the PKCS#7
* padding, recovering the exact original plaintext. Returns an empty
* string when the padding is invalid (e.g. wrong key or corrupted data).
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
protected function decryptAes(string $data, int $objnum): string
{
if (\strlen($data) <= AESnopad::BLOCKSIZE) {
return '';
}
$ivect = \substr($data, 0, AESnopad::BLOCKSIZE);
$ciphertext = \substr($data, AESnopad::BLOCKSIZE);
$mode = $this->encryptdata['mode'];
$key = $mode < 3 ? $this->getObjectKey($objnum) : $this->encryptdata['key'];
$cipher = $mode === 2 ? 'aes-128-cbc' : 'aes-256-cbc';
$dec = \openssl_decrypt($ciphertext, $cipher, $key, OPENSSL_RAW_DATA, $ivect);
return $dec === false ? '' : $dec;
}
// -------------------------------------------------------------------------
// Public-key mode authentication
// -------------------------------------------------------------------------
/**
* Authenticate using a recipient's PEM private-key file (public-key mode).
*
* Iterates over all Recipients entries, tries to decrypt each PKCS#7 envelope
* with the supplied certificate/key, extracts the seed, and derives the
* document encryption key.
*
* @param string $privkeyPath Path to the recipient's PEM file (cert + key).
*
* @return bool True when a matching recipient is found and the key is derived.
*/
protected function authenticatePublicKey(string $privkeyPath): bool
{
if ($privkeyPath === '' || !\is_readable($privkeyPath)) {
return false;
}
$certPem = \file_get_contents($privkeyPath);
if ($certPem === false) {
return false;
}
$seed = $this->findDecryptedRecipientSeed($certPem);
if ($seed === null) {
return false;
}
$this->derivePublicKey($seed);
return true;
}
/**
* Iterate over all Recipients and return the 20-byte seed from the first
* envelope that can be decrypted with $certPem, or null on failure.
*
* @return string|null 20-byte seed, or null when no matching recipient found.
*/
protected function findDecryptedRecipientSeed(string $certPem): ?string
{
foreach ($this->encryptdata['Recipients'] as $hexRecipient) {
// Silence native warning noise for malformed recipient entries;
// false is handled explicitly by the guard below.
\set_error_handler(static fn(): bool => true);
try {
$derData = \hex2bin($hexRecipient);
} finally {
\restore_error_handler();
}
if ($derData === false) {
continue;
}
$envelope = $this->tryDecryptRecipient($derData, $certPem);
if ($envelope !== null && \strlen($envelope) >= 24) {
// envelope = seed (20 bytes) + permissions (4 bytes)
return \substr($envelope, 0, 20);
}
}
return null;
}
/**
* Attempt to decrypt a single DER-encoded PKCS#7 recipient envelope.
*
* Reconstructs the S/MIME message (as produced by openssl_pkcs7_encrypt),
* writes it to a temporary file, calls openssl_pkcs7_decrypt with the
* supplied certificate/key, and returns the raw decrypted bytes on success.
*
* @param string $derData Raw DER binary (one entry from Recipients[]).
* @param string $certPem PEM certificate + private key of the recipient.
*
* @return string|null Decrypted envelope bytes, or null on failure.
*/
protected function tryDecryptRecipient(string $derData, string $certPem): ?string
{
$smime =
"MIME-Version: 1.0\r\n"
. 'Content-Type: application/pkcs7-mime;'
. " smime-type=enveloped-data; name=\"smime.p7m\"\r\n"
. "Content-Transfer-Encoding: base64\r\n\r\n"
. \chunk_split(\base64_encode($derData));
$tmpIn = \tempnam(\sys_get_temp_dir(), '__tcpdf_dec_in_');
$tmpOut = \tempnam(\sys_get_temp_dir(), '__tcpdf_dec_out_');
if ($tmpIn === false || $tmpOut === false) {
return null;
}
if (\file_put_contents($tmpIn, $smime) === false) {
return null;
}
\set_error_handler(static fn(): bool => true);
try {
$decOk = \openssl_pkcs7_decrypt($tmpIn, $tmpOut, $certPem, $certPem);
} finally {
\restore_error_handler();
}
$result = $decOk ? \file_get_contents($tmpOut) : null;
\unlink($tmpIn);
\unlink($tmpOut);
return $result === false ? null : $result;
}
/**
* Derive the document encryption key from the recovered seed.
*
* Mirrors generatePublicEncryptionKey(): the key is SHA-256 (modes ≥ 3) or
* SHA-1 (modes 0–2) of the seed concatenated with all Recipients' raw bytes.
*
* @param string $seed 20-byte random seed extracted from the recipient envelope.
*/
protected function derivePublicKey(string $seed): void
{
$keybytelen = (int) ($this->encryptdata['Length'] / 8);
$recipientBytes = '';
foreach ($this->encryptdata['Recipients'] as $hexRecipient) {
$binary = \hex2bin($hexRecipient);
if ($binary !== false) {
$recipientBytes .= $binary;
}
}
if ($this->encryptdata['mode'] >= 3) {
$this->encryptdata['key'] = \substr(\hash('sha256', $seed . $recipientBytes, true), 0, $keybytelen);
return;
}
$this->encryptdata['key'] = \substr(\sha1($seed . $recipientBytes, true), 0, $keybytelen);
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Encrypt.php
Vendored
+335
View File
@@ -0,0 +1,335 @@
<?php
declare(strict_types=1);
/**
* Encrypt.php
*
* @since 2008-01-02
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt;
use Com\Tecnick\Pdf\Encrypt\Exception as EncException;
/**
* Com\Tecnick\Pdf\Encrypt\Encrypt
*
* PHP class for encrypting data for PDF documents
*
* @since 2008-01-02
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* @phpstan-import-type TEncryptData from Output
*/
class Encrypt extends \Com\Tecnick\Pdf\Encrypt\Compute
{
/**
* Set PDF document protection (permission settings)
*
* NOTES: The protection against modification is for people who have the full Acrobat product.
* If you don't set any password, the document will open as usual.
* If you set a user password, the PDF viewer will ask for it before displaying the document.
* The master password, if different from the user one, can be used to get full access.
* Protecting a document requires to encrypt it, which requires long processing time and may cause timeouts.
*
* @param bool $enabled False if the encryption is disabled (i.e. the document is in PDF/A mode)
* @param string $file_id File ID
* @param int $mode Encryption strength: 0 = RC4-40 (deprecated); 1 = RC4-128 (deprecated);
* 2 = AES-128; 3 = AES-256 R5; 4 = AES-256 R6 (PDF 2.0 / ISO 32000-2)
* @param array<string> $permissions The set of permissions (specify the ones you want to block):
* 'owner' // When set permits change of encryption and enables all other permissions.
* // (inverted logic: cleared by default).
* 'print' // Print the document.
* 'modify' // Modify the contents of the document by operations other than those controlled
* // by 'fill-forms', 'extract' and 'assemble'.
* 'copy' // Copy or otherwise extract text and graphics from the document.
* 'annot-forms' // Add or modify text annotations, fill in interactive form fields, and,
* // if 'modify' is also set, create or modify interactive form fields
* // (including signature fields).
* 'fill-forms' // Fill in existing interactive form fields (including signature fields),
* // even if 'annot-forms' is not specified.
* 'extract' // Extract text and graphics (in support of accessibility to users with
* // disabilities or for other purposes).
* 'assemble' // Assemble the document (insert, rotate, or delete pages and create bookmarks
* // or thumbnail images), even if 'modify' is not set.
* 'print-high' // Print the document to a representation from which a faithful digital copy of the
* // PDF content could be generated. When this is not set, printing is limited to a
* // low-level representation of the appearance, possibly of degraded quality.
*
* @param string $user_pass User password. Empty by default.
* @param string $owner_pass Owner password. If not specified, a random value is used.
* @param ?array{array{'c':string, 'p':array<string>}} $pubkeys
* Array of recipients containing public-key certificates ('c') and permissions ('p').
* For example:
* array(array('c' => 'file://../examples/data/cert/test.crt', 'p' => array('print')))
* To create self-signed certificate:
* openssl req -x509 -nodes -days 365000 -newkey rsa:1024 -keyout cert.pem -out cert.pem
* To export crt to p12: openssl pkcs12 -export -in cert.pem -out cert.p12
* To convert pfx certificate to pem: openssl pkcs12 -in cert.pfx -out cert.pem -nodes
* @param bool $encryptMetadata When false, document metadata streams are not encrypted
* (adds /EncryptMetadata false to the encryption dictionary).
* Default is true (all streams, including metadata, are encrypted).
* @param bool $encryptEmbeddedFiles When true (default), embedded file streams are encrypted
* using the same filter as other streams (/EFF entry is added
* for V >= 4). Set to false to leave embedded files unencrypted.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function __construct(
bool $enabled = false,
string $file_id = '',
int $mode = 0,
array $permissions = [
'print',
'modify',
'copy',
'annot-forms',
'fill-forms',
'extract',
'assemble',
'print-high',
],
string $user_pass = '',
string $owner_pass = '',
?array $pubkeys = null,
bool $encryptMetadata = true,
bool $encryptEmbeddedFiles = true,
) {
if (!$enabled) {
return;
}
$this->encryptdata['protection'] = $this->getUserPermissionCode($permissions, $mode);
$this->setupEncryptionFilter($pubkeys, $mode);
if ($owner_pass === '') {
$owner_pass = \md5($this->encrypt('seed'));
}
$this->encryptdata['user_password'] = $user_pass;
$this->encryptdata['owner_password'] = $owner_pass;
$this->validateAndApplyMode($mode);
$this->encryptdata['EncryptMetadata'] = $encryptMetadata;
// Set EFF (embedded file filter) for V >= 4 when embedded file encryption is requested
if ($encryptEmbeddedFiles && $this->encryptdata['V'] >= 4) {
$this->encryptdata['EFF'] = $this->encryptdata['StmF'];
}
$this->encryptdata['encrypted'] = true;
$this->encryptdata['fileid'] = $this->convertHexStringToString($file_id);
$this->generateEncryptionKey();
}
/**
* Configure Filter, StmF, StrF entries and handle mode promotion for public-key mode.
*
* When $pubkeys are provided and $mode is 0 (RC4-40), mode is silently promoted to 1 (RC4-128)
* with a deprecation notice, because public-key security requires at least 128-bit keys.
*
* @param ?array{array{'c':string, 'p':array<string>}} $pubkeys Recipient public-key certificates.
* @param int $mode Encryption mode (modified by reference).
*/
protected function setupEncryptionFilter(?array $pubkeys, int &$mode): void
{
if ($pubkeys !== null && $pubkeys !== []) {
$this->encryptdata['pubkeys'] = $pubkeys;
if ($mode === 0) {
// public-key Security requires at least 128 bit; upgrade silently but notify the caller
\trigger_error(
'Public-key encryption requires at least RC4-128; mode upgraded from 0 to 1',
E_USER_DEPRECATED,
);
$mode = 1;
}
// Set Public-Key filter (available are: Entrust.PPKEF, Adobe.PPKLite, Adobe.PubSec)
$this->encryptdata['pubkey'] = true;
$this->encryptdata['Filter'] = 'Adobe.PubSec';
$this->encryptdata['StmF'] = 'DefaultCryptFilter';
$this->encryptdata['StrF'] = 'DefaultCryptFilter';
return;
}
// standard mode (password mode)
$this->encryptdata['pubkey'] = false;
$this->encryptdata['Filter'] = 'Standard';
$this->encryptdata['StmF'] = 'StdCF';
$this->encryptdata['StrF'] = 'StdCF';
}
/**
* Emit deprecation notices for broken modes and throw for invalid ones,
* then merge ENCRYPT_SETTINGS for the resolved mode.
*
* @param int $mode Resolved encryption mode (0–4).
*
* @throws EncException When mode is outside the 0–4 range.
*/
protected function validateAndApplyMode(int $mode): void
{
if ($mode === 0 || $mode === 1) {
\trigger_error(
'RC4 encryption (modes 0 and 1) is deprecated and cryptographically broken; use AES (mode 2, 3, or 4)',
E_USER_DEPRECATED,
);
}
if ($mode < 0 || $mode > 4) {
throw new EncException('unknown encryption mode: ' . $mode);
}
$this->encryptdata['mode'] = $mode;
$settings = self::ENCRYPT_SETTINGS[$mode] ?? throw new EncException('unknown encryption mode: ' . $mode);
$this->encryptdata['V'] = $settings['V'];
$this->encryptdata['Length'] = $settings['Length'];
$this->encryptdata['CF'] = [
'CFM' => $settings['CF']['CFM'],
'Length' => (int) ($settings['CF']['Length'] ?? 0),
'AuthEvent' => $settings['CF']['AuthEvent'],
'EncryptMetadata' => $this->encryptdata['EncryptMetadata'],
];
// SubFilter values from ENCRYPT_SETTINGS are for public-key handlers.
// Standard password encryption must omit SubFilter.
$this->encryptdata['SubFilter'] = $this->encryptdata['pubkey'] ? $settings['SubFilter'] : '';
$this->encryptdata['Recipients'] = $settings['Recipients'];
// Keep SubFilter and Recipients keys set from ENCRYPT_SETTINGS to preserve
// stable array shape and avoid undefined-key access in output generation.
}
/**
* Get the encryption data array.
*
* @return TEncryptData
*/
public function getEncryptionData(): array
{
return $this->encryptdata;
}
/**
* Convert hexadecimal string to string.
*
* @param string $bstr Byte-string to convert.
*/
public function convertHexStringToString(string $bstr): string
{
$str = ''; // string to be returned
$bslength = \strlen($bstr);
if (($bslength % 2) !== 0) {
// padding
$bstr .= '0';
++$bslength;
}
for ($idx = 0; $idx < $bslength; $idx += 2) {
$str .= \chr((int) \hexdec($bstr[$idx] . $bstr[$idx + 1]) & 0xFF);
}
return $str;
}
/**
* Convert string to hexadecimal string (byte string).
*
* @param string $str String to convert.
*/
public function convertStringToHexString(string $str): string
{
$chars = \preg_split('//', $str, -1, PREG_SPLIT_NO_EMPTY);
if ($chars === false) {
return '';
}
$bstr = '';
foreach ($chars as $char) {
$bstr .= \sprintf('%02s', \dechex(\ord($char)));
}
return $bstr;
}
/**
* Encode a name object.
*
* @param string $name Name object to encode.
*/
public function encodeNameObject(string $name): string
{
$escname = '';
$length = \strlen($name);
for ($idx = 0; $idx < $length; ++$idx) {
$chr = $name[$idx];
if (\preg_match('/[0-9a-zA-Z#_=-]/', $chr) === 1) {
$escname .= $chr;
continue;
}
$escname .= \sprintf('#%02X', \ord($chr));
}
return $escname;
}
/**
* Encrypt a string.
*
* @param string $str String to encrypt.
* @param int $objnum Object ID.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function encryptString(string $str, int $objnum = 0): string
{
return $this->encrypt($this->encryptdata['mode'], $str, '', $objnum);
}
/**
* Format a data string for meta information.
*
* @param string $str Data string to escape.
* @param int $objnum Object ID.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function escapeDataString(string $str, int $objnum = 0): string
{
return '(' . $this->escapeString($this->encryptString($str, $objnum)) . ')';
}
/**
* Returns a formatted date-time.
*
* @param int $time UTC time measured in the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT).
* @param int $objnum Object ID.
*
* @return string escaped date string.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function getFormattedDate(?int $time = null, int $objnum = 0): string
{
if ($time === null) {
$time = \time(); // get current UTC time
}
return $this->escapeDataString('D:' . \substr_replace(\date('YmdHisO', $time), "'", -2, 0) . "'", $objnum);
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Exception.php
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<?php
declare(strict_types=1);
/**
* Exception.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt;
/**
* Com\Tecnick\Pdf\Encrypt\Exception
*
* Custom Exception class
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class Exception extends \Exception {}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Output.php
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<?php
declare(strict_types=1);
/**
* Output.php
*
* @since 2008-01-02
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt;
/**
* Com\Tecnick\Pdf\Encrypt\Output
*
* PHP class for output encrypt PDF object
*
* @since 2008-01-02
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* @phpstan-type TEncryptData array{
* 'CF': array{
* 'AuthEvent': string,
* 'CFM': string,
* 'EncryptMetadata': bool,
* 'Length': int,
* },
* 'EFF': string,
* 'EncryptMetadata': bool,
* 'Filter': string,
* 'Length': int,
* 'O': string,
* 'OE': string,
* 'OKS': string,
* 'OVS': string,
* 'P': int,
* 'Recipients': array<string>,
* 'StmF': string,
* 'StrF': string,
* 'SubFilter': string,
* 'U': string,
* 'UE': string,
* 'UKS': string,
* 'UVS': string,
* 'V': int,
* 'encrypted': bool,
* 'fileid': string,
* 'key': string,
* 'mode': int,
* 'objid': int,
* 'owner_password': string,
* 'perms': string,
* 'protection': int,
* 'pubkey': bool,
* 'pubkeys'?: array{array{'c':string, 'p':array<string>}},
* 'user_password': string,
* }
*/
abstract class Output
{
/**
* Encryption data
*
* @var TEncryptData
*/
protected array $encryptdata = [
'CF' => [
'AuthEvent' => '',
'CFM' => '',
'EncryptMetadata' => true,
'Length' => 0,
],
'EFF' => '',
'EncryptMetadata' => true,
'Filter' => '',
'Length' => 0,
'O' => '',
'OE' => '',
'OKS' => '',
'OVS' => '',
'P' => 0,
'Recipients' => [],
'StmF' => '',
'StrF' => '',
'SubFilter' => '',
'U' => '',
'UE' => '',
'UKS' => '',
'UVS' => '',
'V' => 0,
'encrypted' => false,
'fileid' => '',
'key' => '',
'mode' => 0,
'objid' => 0,
'owner_password' => '',
'perms' => '',
'protection' => 0,
'pubkey' => false,
// 'pubkeys' => [],
'user_password' => '',
];
/**
* Escape a string: add "\" before "\", "(" and ")".
*
* @param string $str String to escape.
*/
public function escapeString(string $str): string
{
return \strtr($str, [
')' => '\\)',
'(' => '\\(',
'\\' => '\\\\',
\chr(13) => '\r',
]);
}
/**
* Get the PDF encryption block
*
* @param int $pon Current PDF object number
*/
public function getPdfEncryptionObj(int &$pon): string
{
$this->setMissingValues();
$this->encryptdata['objid'] = ++$pon;
$out =
$this->encryptdata['objid']
. ' 0 obj'
. "\n"
. '<<'
. "\n"
. '/Filter /'
. $this->encryptdata['Filter']
. "\n";
if ($this->encryptdata['SubFilter'] !== '') {
$out .= '/SubFilter /' . $this->encryptdata['SubFilter'] . "\n";
}
// V is a code specifying the algorithm to be used in encrypting and decrypting the document
$out .= '/V ' . $this->encryptdata['V'] . "\n";
// The length of the encryption key, in bits. The value shall be a multiple of 8, in the range 40 to 256
$out .= '/Length ' . $this->encryptdata['Length'] . "\n";
if ($this->encryptdata['V'] >= 4) {
$out .= $this->getCryptFilter();
// The name of the crypt filter that shall be used by default when decrypting streams.
$out .= '/StmF /' . $this->encryptdata['StmF'] . "\n";
// The name of the crypt filter that shall be used when decrypting all strings in the document.
$out .= '/StrF /' . $this->encryptdata['StrF'] . "\n";
if ($this->encryptdata['EFF'] !== '') {
// The name of the crypt filter that shall be used when encrypting embedded file streams
// that do not have their own crypt filter specifier.
$out .= '/EFF /' . $this->encryptdata['EFF'] . "\n";
}
}
return $out . ($this->getAdditionalEncDic() . '>>' . "\n" . 'endobj' . "\n");
}
/**
* Get Crypt Filter section
*
* A dictionary whose keys shall be crypt filter names
* and whose values shall be the corresponding crypt filter dictionaries.
*/
protected function getCryptFilter(): string
{
$out =
'/CF <<'
. "\n"
. '/'
. $this->encryptdata['StmF']
. ' <<'
. "\n"
. '/Type /CryptFilter'
. "\n"
. '/CFM /'
. $this->encryptdata['CF']['CFM']
. "\n"; // The method used
if ($this->encryptdata['pubkey']) {
$out .= '/Recipients [';
foreach ($this->encryptdata['Recipients'] as $rec) {
$out .= ' <' . $rec . '>';
}
$out .=
' ]'
. "\n"
. '/EncryptMetadata '
. $this->getBooleanString($this->encryptdata['CF']['EncryptMetadata'])
. "\n";
}
// The event to be used to trigger the authorization
// that is required to access encryption keys used by this filter.
$out .= '/AuthEvent /' . $this->encryptdata['CF']['AuthEvent'] . "\n";
if ($this->encryptdata['CF']['Length'] !== 0) {
// The bit length of the encryption key.
$out .= '/Length ' . $this->encryptdata['CF']['Length'] . "\n";
}
return $out . ('>>' . "\n" . '>>' . "\n");
}
/**
* get additional encryption dictionary entries for the standard security handler
*/
protected function getAdditionalEncDic(): string
{
$out = '';
if ($this->encryptdata['pubkey']) {
if ($this->encryptdata['V'] < 4 && $this->encryptdata['Recipients'] !== []) {
$out .= ' /Recipients [';
foreach ($this->encryptdata['Recipients'] as $rec) {
$out .= ' <' . $rec . '>';
}
$out .= ' ]' . "\n";
}
return $out;
}
$out .= '/R ';
if ($this->encryptdata['V'] >= 5) { // AES-256 R5 or R6
$revision = $this->encryptdata['V'] >= 6 ? '6' : '5';
$out .=
$revision
. "\n"
. '/OE ('
. $this->escapeString($this->encryptdata['OE'])
. ')'
. "\n"
. '/UE ('
. $this->escapeString($this->encryptdata['UE'])
. ')'
. "\n"
. '/Perms ('
. $this->escapeString($this->encryptdata['perms'])
. ')'
. "\n";
}
if ($this->encryptdata['V'] === 4) { // AES-128
$out .= '4' . "\n";
}
if ($this->encryptdata['V'] < 2) { // RC4-40
$out .= '2' . "\n";
}
if ($this->encryptdata['V'] >= 2 && $this->encryptdata['V'] < 4) { // RC4-128
$out .= '3' . "\n";
}
$out .=
'/O ('
. $this->escapeString($this->encryptdata['O'])
. ')'
. "\n"
. '/U ('
. $this->escapeString($this->encryptdata['U'])
. ')'
. "\n"
. '/P '
. $this->encryptdata['P']
. "\n"
. '/EncryptMetadata '
. $this->getBooleanString($this->encryptdata['EncryptMetadata'])
. "\n";
return $out;
}
/**
* Return a string representation of a boolean value
*
* @param bool $value Value to convert
*/
protected function getBooleanString(bool $value): string
{
return $value ? 'true' : 'false';
}
/**
* Copy the EncryptMetadata flag into the crypt filter dictionary before output.
*/
protected function setMissingValues(): void
{
$this->encryptdata['CF']['EncryptMetadata'] = $this->encryptdata['EncryptMetadata'];
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Type/AES.php
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<?php
declare(strict_types=1);
/**
* AES.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt\Type;
use Com\Tecnick\Pdf\Encrypt\Exception as EncException;
/**
* Com\Tecnick\Pdf\Encrypt\Type\AES
*
* AES
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class AES
{
/**
* Encrypt the data using OpenSSL
*
* @param string $data Data string to encrypt
* @param string $key Encryption key
* @param string $mode Cipher
*
* @return string encrypted text
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function encrypt(string $data, string $key, string $mode = ''): string
{
if ($mode === '') {
$mode = \strlen($key) > 16 ? 'aes-256-cbc' : 'aes-128-cbc';
}
$aesnopad = new AESnopad();
$aesnopad->checkCipher($mode);
$len = \openssl_cipher_iv_length($mode);
if ($len === false || $len <= 0) {
throw new EncException('openssl_cipher_iv_length failed');
}
$ivect = \openssl_random_pseudo_bytes($len);
$enc = \openssl_encrypt($data, $mode, $key, OPENSSL_RAW_DATA, $ivect);
if ($enc === false) {
throw new EncException('encryption error: ' . (string) \openssl_error_string());
}
return $ivect . $enc;
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Type/AESSixteen.php
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<?php
declare(strict_types=1);
/**
* AESSixteen.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt\Type;
/**
* Com\Tecnick\Pdf\Encrypt\Type\AESSixteen
*
* AESSixteen
* 16 bytes = 128 bit
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class AESSixteen
{
/**
* Encrypt the data using OpenSSL
*
* @param string $data Data string to encrypt
* @param string $key Encryption key
*
* @return string encrypted text
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function encrypt(string $data, string $key): string
{
$aes = new AES();
return $aes->encrypt($data, $key, 'aes-128-cbc');
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Type/AESThirtytwo.php
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<?php
declare(strict_types=1);
/**
* AESThirtytwo.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt\Type;
/**
* Com\Tecnick\Pdf\Encrypt\Type\AESThirtytwo
*
* AESThirtytwo
* 32 bytes = 256 bit
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class AESThirtytwo
{
/**
* Encrypt the data using OpenSSL
*
* @param string $data Data string to encrypt
* @param string $key Encryption key
*
* @return string encrypted text
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function encrypt(string $data, string $key): string
{
$aes = new AES();
return $aes->encrypt($data, $key, 'aes-256-cbc');
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Type/AESnopad.php
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<?php
declare(strict_types=1);
/**
* AESnopad.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt\Type;
use Com\Tecnick\Pdf\Encrypt\Exception as EncException;
/**
* Com\Tecnick\Pdf\Encrypt\Type\AESnopad
*
* AES no-padding
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class AESnopad
{
/**
* Block size (IV length):
* \openssl_cipher_iv_length('aes-256-cbc')
*
* @var int
*/
public const BLOCKSIZE = 16;
/**
* Initialization Vector (16 bytes)
*
* @var string
*/
public const IVECT = "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
/**
* List of valid openssl cyphers for AES encryption.
*
* @var array<string>
*/
public const VALID_CIPHERS = [
'aes-128-cbc',
'aes-256-cbc',
];
/**
* Encrypt the data
*
* @param string $data Data string to encrypt
* @param string $key Encryption key
* @param string $ivect Initialization vector
* @param string $mode Cipher
*
* @return string Encrypted data string.
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function encrypt(
string $data,
string $key,
string $ivect = self::IVECT,
string $mode = 'aes-256-cbc',
): string {
$this->checkCipher($mode);
$enc = \openssl_encrypt(
$this->pad($data, self::BLOCKSIZE),
$mode,
$this->pad($key, 2 * self::BLOCKSIZE),
OPENSSL_RAW_DATA,
$ivect,
);
if ($enc === false) {
throw new EncException('encryption error: ' . (string) \openssl_error_string());
}
return \substr($enc, 0, -16);
}
/**
* Decrypt data that was produced by encrypt().
*
* encrypt() zero-pads the plaintext to 16-byte alignment, encrypts with PKCS7
* (which appends one extra 16-byte block), then strips that trailing block.
* This method decrypts with OPENSSL_ZERO_PADDING so no PKCS7 validation is
* applied, recovering the zero-padded plaintext. When the original plaintext
* length is known, the caller should strip any trailing zero bytes.
*
* @param string $data Encrypted data (produced by encrypt()).
* @param string $key Encryption key.
* @param string $ivect Initialization vector (default: 16 zero bytes).
* @param string $mode Cipher (default: aes-256-cbc).
*
* @return string Decrypted data string.
*
* @throws EncException When decryption fails.
*/
public function decrypt(
string $data,
string $key,
string $ivect = self::IVECT,
string $mode = 'aes-256-cbc',
): string {
$this->checkCipher($mode);
$dec = \openssl_decrypt(
$data,
$mode,
$this->pad($key, 2 * self::BLOCKSIZE),
OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING,
$ivect,
);
if ($dec === false) {
throw new EncException('decryption error: ' . (string) \openssl_error_string());
}
return $dec;
}
/**
* Pad the input string to the specified length
* (RFC 2898, PKCS #5: Password-Based Cryptography Specification Version 2.0)
*
* @param string $data Data to pad
* @param int $length Padding length
*
* @return string Padded string
*/
protected function pad(string $data, int $length): string
{
$rem = \strlen($data) % $length;
if ($rem !== 0) {
$data .= \str_repeat("\x00", \max(0, $length - $rem));
}
return $data;
}
/**
* Check if the cipher is valid and available.
*
* @param string $cipher openSSL cipher name.
*
* @throws EncException in case of error.
*/
public function checkCipher(string $cipher): void
{
if (!\in_array($cipher, self::VALID_CIPHERS, strict: true)) {
throw new EncException('invalid cipher: ' . $cipher);
}
if (!\in_array($cipher, \openssl_get_cipher_methods(), strict: true)) {
throw new EncException('unavailable cipher: ' . $cipher);
}
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Type/MDFiveSixteen.php
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<?php
declare(strict_types=1);
/**
* MDFiveSixteen.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt\Type;
/**
* Com\Tecnick\Pdf\Encrypt\Type\MDFiveSixteen
*
* MD5-16
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class MDFiveSixteen
{
/**
* Encrypt the data
*
* @param string $data Data string to encrypt
*
* @return string encrypted text
*/
public function encrypt(string $data, string $_key = 'H*'): string
{
return \pack('H*', \md5($data));
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Type/RCFour.php
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<?php
declare(strict_types=1);
/**
* RCFour.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt\Type;
use Com\Tecnick\Pdf\Encrypt\Exception as EncException;
/**
* Com\Tecnick\Pdf\Encrypt\Type\RCFour
*
* RC4 is the standard encryption algorithm used in PDF format
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class RCFour
{
/**
* List of valid openssl cyphers for RC4 encryption.
*
* @var array<string>
*/
public const VALID_CIPHERS = [
'RC4',
'RC4-40',
];
/**
* Encrypt the data using the RC4 (Rivest Cipher 4, also known as ARC4 or ARCFOUR) algorithm.
* RC4 is one of the standard encryption algorithm used in PDF format.
* If possible, please use AES encryption instead as this is insecure.
*
* @param string $data Data string to encrypt
* @param string $key Encryption key
* @param string $mode Cipher
*
* @return string encrypted text
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function encrypt(string $data, string $key, string $mode = ''): string
{
if ($mode === '') {
$mode = \strlen($key) > 5 ? 'RC4' : 'RC4-40';
}
if (!\in_array($mode, self::VALID_CIPHERS, strict: true)) {
throw new EncException('invalid cipher: ' . $mode);
}
if (!\in_array($mode, \openssl_get_cipher_methods(), strict: true)) {
return $this->rc4($data, $key);
}
$enc = \openssl_encrypt($data, $mode, $key, OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING);
if ($enc === false) {
throw new EncException('openssl_encrypt failed');
}
return $enc;
}
/**
* Returns the input text encrypted using RC4 algorithm and the specified key.
* This function is used when the openssl extension is not available.
*
* @param string $data Data string to encrypt
* @param string $key Encryption key
*
* @return string encrypted text
*/
protected function rc4(string $data, string $key): string
{
$rc4 = $this->initRc4State($key);
return $this->applyRc4Stream($data, $rc4);
}
/**
* @return array<int, int>
*/
protected function initRc4State(string $key): array
{
$pkey = \str_repeat($key, \max(1, (int) ((256 / \strlen($key)) + 1)));
/** @var array<int, int> $rc4 */
$rc4 = \range(0, 255);
$pos = 0;
for ($idx = 0; $idx < 256; ++$idx) {
$val = $rc4[$idx] ?? 0;
$pos = ($pos + $val + \ord($pkey[$idx])) % 256;
$rc4[$idx] = $rc4[$pos] ?? 0;
$rc4[$pos] = $val;
}
return $rc4;
}
/**
* @param array<int, int> $rc4
*/
protected function applyRc4Stream(string $data, array $rc4): string
{
$len = \strlen($data);
$posa = 0;
$posb = 0;
$out = '';
for ($idx = 0; $idx < $len; ++$idx) {
$posa = ($posa + 1) % 256;
$val = $rc4[$posa] ?? 0;
$posb = ($posb + $val) % 256;
$rc4[$posa] = $rc4[$posb] ?? 0;
$rc4[$posb] = $val;
$pkey = $rc4[(($rc4[$posa] ?? 0) + ($rc4[$posb] ?? 0)) % 256] ?? 0;
$out .= \chr((\ord($data[$idx]) ^ $pkey) & 0xFF);
}
return $out;
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Type/RCFourFive.php
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<?php
declare(strict_types=1);
/**
* RCFourFive.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt\Type;
/**
* Com\Tecnick\Pdf\Encrypt\Type\RCFourFive
*
* RC4-40 is the standard encryption algorithm used in PDF format
* The key length is 5 bytes (40 bits)
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class RCFourFive
{
/**
* Encrypt the data
*
* @param string $data Data string to encrypt
* @param string $key Encryption key
*
* @return string encrypted text
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function encrypt(string $data, string $key): string
{
$rcFour = new RCFour();
return $rcFour->encrypt($data, $key, 'RC4-40');
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Type/RCFourSixteen.php
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<?php
declare(strict_types=1);
/**
* RCFourSixteen.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt\Type;
/**
* Com\Tecnick\Pdf\Encrypt\Type\RCFourSixteen
*
* RC4-128 is the standard encryption algorithm used in PDF format
* The key length is 16 bytes (128 bits)
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class RCFourSixteen
{
/**
* Encrypt the data
*
* @param string $data Data string to encrypt
* @param string $key Encryption key
*
* @return string encrypted text
*
* @throws \Com\Tecnick\Pdf\Encrypt\Exception
*/
public function encrypt(string $data, string $key): string
{
$rcFour = new RCFour();
return $rcFour->encrypt($data, $key, 'RC4');
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/src/Type/Seed.php
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<?php
declare(strict_types=1);
/**
* Seed.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Com\Tecnick\Pdf\Encrypt\Type;
/**
* Com\Tecnick\Pdf\Encrypt\Type\Seed
*
* generate random seed
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class Seed
{
/**
* Encrypt the data
*
* @param string $data Random seed data
* @param string $key Random seed data
* @param string $mode Default mode (openssl or raw)
*
* @return string seed
*
* @throws \Random\RandomException
*/
public function encrypt(string $data = '', string $key = '', string $mode = 'openssl'): string
{
$rnd = \uniqid(\random_int(0, \mt_getrandmax()) . microtime(true), true);
if (\function_exists('posix_getpid')) {
$rnd .= \posix_getpid();
}
if (
$mode === 'openssl'
&& \function_exists('openssl_random_pseudo_bytes')
&& \strtoupper(\substr(PHP_OS, 0, 3)) !== 'WIN'
) {
// this is not used on windows systems because it is very slow for a known bug
$rnd .= \openssl_random_pseudo_bytes(512);
return $rnd . $data . __DIR__ . __FILE__ . $key . \serialize($_SERVER) . microtime(true);
}
for ($idx = 0; $idx < 23; ++$idx) {
$rnd .= \uniqid('', true);
}
return $rnd . $data . __DIR__ . __FILE__ . $key . \serialize($_SERVER) . microtime(true);
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/DecryptTest.php
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<?php
/**
* DecryptTest.php
*
* @since 2026-04-30
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Test;
use Com\Tecnick\Pdf\Encrypt\Decrypt;
use Com\Tecnick\Pdf\Encrypt\Encrypt;
/**
* Decrypt test
*
* Coverage notes (unreachable / untestable defensive guards):
* - Decrypt::tryDecryptRecipient() `$tmpIn === false || $tmpOut === false`:
* tempnam() failure requires a filesystem-level fault; cannot be reliably
* induced in unit tests.
* - Decrypt::tryDecryptRecipient() `file_put_contents === false`:
* same as above.
* - AESnopad::decrypt() `$dec === false`:
* openssl_decrypt() cannot return false for well-formed AES-CBC ciphertext
* with a valid key; this guard protects against hypothetical extension failures.
* - Decrypt::decryptAes() `$dec === false` return '':
* same reasoning; openssl_decrypt is called with correct key/iv/cipher.
*
* @since 2026-04-30
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class DecryptTest extends TestUtil
{
/** Build a Decrypt object from an Encrypt instance's encryption data. */
private function decryptFromEncrypt(Encrypt $enc): Decrypt
{
return new Decrypt($enc->getEncryptionData());
}
// -------------------------------------------------------------------------
// Mode 2 (AES-128) — standard password authentication
// -------------------------------------------------------------------------
public function testAuthenticateUserMode2(): void
{
$enc = new Encrypt(true, \md5('file'), 2, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('userpass'));
$this->assertNotEmpty($dec->getDocumentKey());
}
public function testAuthenticateOwnerMode2(): void
{
$enc = new Encrypt(true, \md5('file'), 2, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('ownerpass'));
$this->assertNotEmpty($dec->getDocumentKey());
}
public function testAuthenticateWrongPasswordMode2(): void
{
$enc = new Encrypt(true, \md5('file'), 2, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertFalse($dec->authenticate('wrongpassword'));
// Key must remain empty after failed authentication.
$this->assertSame('', $dec->getDocumentKey());
}
// -------------------------------------------------------------------------
// Mode 3 (AES-256 R5) — standard password authentication
// -------------------------------------------------------------------------
public function testAuthenticateUserMode3(): void
{
$enc = new Encrypt(true, \md5('file'), 3, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('userpass'));
$this->assertEquals(32, \strlen($dec->getDocumentKey()));
}
public function testAuthenticateOwnerMode3(): void
{
$enc = new Encrypt(true, \md5('file'), 3, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('ownerpass'));
$this->assertEquals(32, \strlen($dec->getDocumentKey()));
}
public function testAuthenticateWrongPasswordMode3(): void
{
$enc = new Encrypt(true, \md5('file'), 3, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertFalse($dec->authenticate('wrong'));
}
// -------------------------------------------------------------------------
// Mode 4 (AES-256 R6 / PDF 2.0) — standard password authentication
// -------------------------------------------------------------------------
public function testAuthenticateUserMode4(): void
{
$enc = new Encrypt(true, \md5('file'), 4, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('userpass'));
$this->assertEquals(32, \strlen($dec->getDocumentKey()));
}
public function testAuthenticateOwnerMode4(): void
{
$enc = new Encrypt(true, \md5('file'), 4, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('ownerpass'));
$this->assertEquals(32, \strlen($dec->getDocumentKey()));
}
public function testAuthenticateWrongPasswordMode4(): void
{
$enc = new Encrypt(true, \md5('file'), 4, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertFalse($dec->authenticate('wrong'));
}
// -------------------------------------------------------------------------
// Modes 0 and 1 (RC4 — deprecated but must still authenticate correctly)
// -------------------------------------------------------------------------
public function testAuthenticateUserMode0(): void
{
$this->bcAssertUserDeprecationMessageMatches('/RC4 encryption.*deprecated/i', function (): void {
$enc = new Encrypt(true, \md5('file'), 0, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('userpass'));
$this->assertNotEmpty($dec->getDocumentKey());
});
}
public function testAuthenticateOwnerMode0(): void
{
$this->bcAssertUserDeprecationMessageMatches('/RC4 encryption.*deprecated/i', function (): void {
$enc = new Encrypt(true, \md5('file'), 0, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('ownerpass'));
$this->assertNotEmpty($dec->getDocumentKey());
});
}
public function testAuthenticateUserMode1(): void
{
$this->bcAssertUserDeprecationMessageMatches('/RC4 encryption.*deprecated/i', function (): void {
$enc = new Encrypt(true, \md5('file'), 1, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('userpass'));
$this->assertNotEmpty($dec->getDocumentKey());
});
}
public function testAuthenticateOwnerMode1(): void
{
$this->bcAssertUserDeprecationMessageMatches('/RC4 encryption.*deprecated/i', function (): void {
$enc = new Encrypt(true, \md5('file'), 1, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('ownerpass'));
$this->assertNotEmpty($dec->getDocumentKey());
});
}
// -------------------------------------------------------------------------
// decryptString round-trips
// -------------------------------------------------------------------------
/**
* RC4 modes are symmetric: encrypt(encrypt(data, key)) = data.
* The plaintext is recovered exactly (no padding).
*/
public function testDecryptStringRoundtripMode0(): void
{
$this->bcAssertUserDeprecationMessageMatches('/RC4 encryption.*deprecated/i', function (): void {
$enc = new Encrypt(true, \md5('file'), 0, ['print'], 'alpha', 'beta');
$plaintext = 'hello world';
$ciphertext = $enc->encryptString($plaintext, 1);
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('alpha'));
$this->assertSame($plaintext, $dec->decryptString($ciphertext, 1));
});
}
/**
* AES-128: IV-prefixed stream; PKCS#7 padding is stripped so the exact
* plaintext is recovered.
*/
public function testDecryptStringRoundtripMode2(): void
{
$enc = new Encrypt(true, \md5('file'), 2, ['print'], 'alpha', 'beta');
$plaintext = 'hello world';
$ciphertext = $enc->encryptString($plaintext, 1);
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('alpha'));
$this->assertSame($plaintext, $dec->decryptString($ciphertext, 1));
}
/**
* AES-256 R5: full document key used; exact plaintext recovered.
*/
public function testDecryptStringRoundtripMode3(): void
{
$enc = new Encrypt(true, \md5('file'), 3, ['print'], 'alpha', 'beta');
$plaintext = 'hello world';
$ciphertext = $enc->encryptString($plaintext, 1);
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('alpha'));
$this->assertSame($plaintext, $dec->decryptString($ciphertext, 1));
}
/**
* AES-256 R6: same as R5 but with hash2B key derivation.
*/
public function testDecryptStringRoundtripMode4(): void
{
$enc = new Encrypt(true, \md5('file'), 4, ['print'], 'alpha', 'beta');
$plaintext = 'hello world';
$ciphertext = $enc->encryptString($plaintext, 1);
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('alpha'));
$this->assertSame($plaintext, $dec->decryptString($ciphertext, 1));
}
/**
* Block-aligned plaintext (exactly 16 bytes) must round-trip exactly: the
* PKCS#7 scheme appends a full extra padding block on encryption that must
* be removed on decryption.
*/
public function testDecryptStringRoundtripBlockAligned(): void
{
foreach ([2, 3, 4] as $mode) {
$enc = new Encrypt(true, \md5('file'), $mode, ['print'], 'alpha', 'beta');
$plaintext = \str_repeat('A', 16);
$ciphertext = $enc->encryptString($plaintext, 7);
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('alpha'));
$this->assertSame($plaintext, $dec->decryptString($ciphertext, 7), "mode {$mode}");
}
}
/**
* Empty plaintext must round-trip to an empty string for all AES modes.
*/
public function testDecryptStringRoundtripEmpty(): void
{
foreach ([2, 3, 4] as $mode) {
$enc = new Encrypt(true, \md5('file'), $mode, ['print'], 'alpha', 'beta');
$ciphertext = $enc->encryptString('', 3);
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('alpha'));
$this->assertSame('', $dec->decryptString($ciphertext, 3), "mode {$mode}");
}
}
/**
* Without authentication the key is empty; decryptString returns data that
* differs from the original plaintext (garbage decrypt, not the correct value).
*/
public function testDecryptStringWithoutAuthProducesGarbage(): void
{
$enc = new Encrypt(true, \md5('file'), 3, ['print'], 'userpass', 'ownerpass');
$dec = $this->decryptFromEncrypt($enc);
// Key is cleared in constructor; without authenticate(), key is empty.
$ciphertext = $enc->encryptString('hello world', 1);
$result = $dec->decryptString($ciphertext, 1);
// Without the correct key the output must differ from the plaintext.
$this->assertStringNotContainsString('hello world', $result);
}
/**
* decryptString with too-short AES data (≤ 16 bytes) returns empty string.
*/
public function testDecryptStringAesTooShortData(): void
{
$enc = new Encrypt(true, \md5('file'), 3, ['print'], 'alpha', 'beta');
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('alpha'));
$this->assertSame('', $dec->decryptString(\str_repeat('x', 16), 0));
}
// -------------------------------------------------------------------------
// getDocumentKey after failed/successful authentication
// -------------------------------------------------------------------------
public function testGetDocumentKeyAfterFailedAuth(): void
{
$enc = new Encrypt(true, \md5('file'), 3, ['print'], 'userpass', 'ownerpass');
// Store the real key, then construct Decrypt with an overwritten empty key
$data = $enc->getEncryptionData();
$data['key'] = '';
$dec = new Decrypt($data);
$this->assertFalse($dec->authenticate('wrong'));
$this->assertSame('', $dec->getDocumentKey());
}
// -------------------------------------------------------------------------
// Public-key mode authentication
// -------------------------------------------------------------------------
public function testAuthenticatePublicKeyMode3(): void
{
$certPath = __DIR__ . '/data/cert.pem';
$pubkeys = [['c' => $certPath, 'p' => ['print']]];
$enc = new Encrypt(true, \md5('file'), 3, ['print'], '', '', $pubkeys);
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('', $certPath));
$this->assertEquals(32, \strlen($dec->getDocumentKey()));
}
public function testAuthenticatePublicKeyMode1(): void
{
$this->bcRunIgnoringUserDeprecations(function (): void {
// Mode 1 pubkey silently promotes mode 0 → 1 (covered elsewhere).
$certPath = __DIR__ . '/data/cert.pem';
$pubkeys = [['c' => $certPath, 'p' => ['print']]];
$enc = new Encrypt(true, \md5('file'), 1, ['print'], '', '', $pubkeys);
$dec = $this->decryptFromEncrypt($enc);
$this->assertTrue($dec->authenticate('', $certPath));
$this->assertNotEmpty($dec->getDocumentKey());
});
}
public function testAuthenticatePublicKeyEmptyPathReturnsFalse(): void
{
$certPath = __DIR__ . '/data/cert.pem';
$pubkeys = [['c' => $certPath, 'p' => ['print']]];
$enc = new Encrypt(true, \md5('file'), 3, ['print'], '', '', $pubkeys);
$dec = $this->decryptFromEncrypt($enc);
$this->assertFalse($dec->authenticate('', ''));
}
public function testAuthenticatePublicKeyWrongKeyReturnsFalse(): void
{
$certPath = __DIR__ . '/data/cert.pem';
$pubkeys = [['c' => $certPath, 'p' => ['print']]];
$enc = new Encrypt(true, \md5('file'), 3, ['print'], '', '', $pubkeys);
$dec = $this->decryptFromEncrypt($enc);
// Use the test PHP file as a "wrong" key — openssl_pkcs7_decrypt will fail.
$this->assertFalse($dec->authenticate('', __FILE__));
}
/**
* Cover the `hex2bin() === false` branch in findDecryptedRecipientSeed().
*
* When a Recipients entry contains non-hexadecimal characters, hex2bin()
* returns false and the entry is skipped via `continue`. With no valid
* entries the method returns null and authenticate() returns false.
*/
public function testAuthenticatePublicKeyInvalidHexRecipientReturnsFalse(): void
{
$certPath = __DIR__ . '/data/cert.pem';
// Manually build an encryptdata array in pubkey mode whose Recipients
// list contains only a string that is not valid hex (non-hex characters
// cause hex2bin() to return false).
$data = [
'V' => 6,
'Length' => 256,
'O' => \str_repeat('x', 32),
'U' => \str_repeat('x', 48),
'P' => 0,
'fileid' => \md5('test'),
'mode' => 3,
'pubkey' => true,
'Recipients' => ['ZZZZINVALID!!'], // hex2bin returns false for non-hex chars
];
$dec = new \Com\Tecnick\Pdf\Encrypt\Decrypt($data);
$this->assertFalse($dec->authenticate('', $certPath));
}
// -------------------------------------------------------------------------
// AESnopad::decrypt() direct tests
// -------------------------------------------------------------------------
public function testAesnopadDecryptRoundtrip32Bytes(): void
{
$aesnopad = new \Com\Tecnick\Pdf\Encrypt\Type\AESnopad();
$key = \str_repeat('k', 32);
$plaintext = \str_repeat('p', 32); // exact 32-byte payload (e.g. file key)
$ciphertext = $aesnopad->encrypt($plaintext, $key);
$decrypted = $aesnopad->decrypt($ciphertext, $key);
$this->assertSame($plaintext, $decrypted);
}
public function testAesnopadDecryptRoundtripAes128(): void
{
$aesnopad = new \Com\Tecnick\Pdf\Encrypt\Type\AESnopad();
$key = \str_repeat('k', 16);
$plaintext = \str_repeat('p', 16);
$ivect = \Com\Tecnick\Pdf\Encrypt\Type\AESnopad::IVECT;
$ciphertext = $aesnopad->encrypt($plaintext, $key, $ivect, 'aes-128-cbc');
$decrypted = $aesnopad->decrypt($ciphertext, $key, $ivect, 'aes-128-cbc');
$this->assertSame($plaintext, $decrypted);
}
public function testAesnopadDecryptInvalidCipherThrows(): void
{
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
$aesnopad = new \Com\Tecnick\Pdf\Encrypt\Type\AESnopad();
$aesnopad->decrypt('data', 'key', \Com\Tecnick\Pdf\Encrypt\Type\AESnopad::IVECT, 'des-cbc');
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/EncryptTest.php
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<?php
/**
* EncryptTest.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Test;
/**
* Encrypt Test
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class EncryptTest extends TestUtil
{
// Coverage note: src/Compute.php hash2B() line ~295
// `throw new EncException('AES-128-CBC encryption failed in hash2B')` is a defensive guard;
// openssl_encrypt() never returns false for valid block-aligned AES-128-CBC inputs with
// a correct 16-byte key and IV — this branch is unreachable under normal PHP/OpenSSL conditions.
//
// Coverage note: src/Compute.php getEncryptedRecipientBytes()
// The `tempnam() === false` / `file_put_contents() === false` guards (and the
// accompanying unlink() cleanup on those error paths) require a filesystem failure
// that cannot be reliably induced in unit tests. The happy-path try/finally cleanup
// and encryptRecipientEnvelope() are exercised by the public-key tests.
//
// Coverage note: src/Encrypt.php convertStringToHexString() line ~246
// `return ''` after `preg_split('//', ...)` guards against the impossible case where
// preg_split returns false; the regex '//\'' is always valid and never returns false.
public function testEncryptException(): void
{
$this->bcRunIgnoringUserDeprecations(function (): void {
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'));
$encrypt->encrypt('WRONG');
});
}
public function testEncryptModeException(): void
{
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 5);
}
public function testEncryptThree(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta');
$result = $encrypt->encrypt(3, 'alpha');
$this->assertEquals(32, \strlen($result));
}
public function testEncryptWithAesEncoderName(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta');
$result = $encrypt->encrypt('AES', 'alpha', '0123456789abcdef0123456789abcdef');
$this->assertGreaterThan(16, \strlen($result));
}
public function testEncryptPubThree(): void
{
$pubkeys = [[
'c' => __DIR__ . '/data/cert.pem',
'p' => ['print'],
]];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta', $pubkeys);
$result = $encrypt->encrypt(3, 'alpha');
$this->assertEquals(32, \strlen($result));
}
public function testEncryptPubNoP(): void
{
$pubkeys = [[
'c' => __DIR__ . '/data/cert.pem',
'p' => ['print'],
]];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta', $pubkeys);
$result = $encrypt->encrypt(3, 'alpha');
$this->assertEquals(32, \strlen($result));
}
public function testEncryptPubException(): void
{
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta', [[
'c' => __FILE__,
'p' => ['print'],
]]);
}
public function testEncryptPubUnreadableCertificateException(): void
{
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
\set_error_handler(static fn(): bool => true);
try {
new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta', [[
'c' => __DIR__ . '/data/does-not-exist.pem',
'p' => ['print'],
]]);
} finally {
\restore_error_handler();
}
}
public function testEncryptRc4ThroughOpenSslWhenAvailable(): void
{
if (!\in_array('RC4', \openssl_get_cipher_methods(), true)) {
$this->markTestSkipped('OpenSSL RC4 cipher is not available on this runtime.');
}
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta');
$result = $encrypt->encrypt('RC4', 'alpha', '0123456789abcdef');
$this->assertSame(5, \strlen($result));
}
public function testEncryptModZeroPub(): void
{
$this->bcRunIgnoringUserDeprecations(function (): void {
$pubkeys = [[
'c' => __DIR__ . '/data/cert.pem',
'p' => ['print'],
]];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(
true,
\md5('file_id'),
0,
['print'],
'alpha',
'beta',
$pubkeys,
);
$result = $encrypt->encrypt(1, 'alpha');
// Check for "error:0308010C:digital envelope routines::unsupported" when using OpenSSL 3.
// \var_dump(\openssl_error_string());
$this->assertEquals(5, \strlen($result));
});
}
/** Issue 6: RC4 mode 0 must emit a deprecation notice. */
public function testRc4DeprecationModeZero(): void
{
$this->bcAssertUserDeprecationMessageMatches('/RC4 encryption.*deprecated.*cryptographically broken/i', function (): void {
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 0, ['print'], 'alpha', 'beta');
$result = $encrypt->encrypt(0, 'alpha');
$this->assertGreaterThan(0, \strlen($result));
});
}
/** Issue 6: RC4 mode 1 must emit a deprecation notice. */
public function testRc4DeprecationModeOne(): void
{
$this->bcAssertUserDeprecationMessageMatches('/RC4 encryption.*deprecated.*cryptographically broken/i', function (): void {
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 1, ['print'], 'alpha', 'beta');
$result = $encrypt->encrypt(1, 'alpha');
$this->assertGreaterThan(0, \strlen($result));
});
}
/** Issue 5: mode 0 + pubkeys must emit the upgrade deprecation notice. */
public function testPubKeyModeZeroDeprecation(): void
{
$this->bcAssertUserDeprecationMessageMatches('/Public-key encryption requires at least RC4-128/i', function (): void {
$pubkeys = [[
'c' => __DIR__ . '/data/cert.pem',
'p' => ['print'],
]];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(
true,
\md5('file_id'),
0,
['print'],
'alpha',
'beta',
$pubkeys,
);
// After promotion to mode 1, the resulting encryption data must reflect mode 1
$data = $encrypt->getEncryptionData();
$this->assertEquals(1, $data['mode']);
$this->assertEquals(2, $data['V']);
});
}
/** Issue 2: AES-256 perms bytes 12-15 must be random (not 'nick'). */
public function testPermsRandomBytes(): void
{
$encrypt1 = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta');
$encrypt2 = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta');
$data1 = $encrypt1->getEncryptionData();
$data2 = $encrypt2->getEncryptionData();
// The 16-byte AES-encrypted perms block (AESnopad strips the PKCS7 padding block)
$this->assertEquals(16, \strlen($data1['perms']));
$this->assertEquals(16, \strlen($data2['perms']));
// Two independently generated perms values should almost certainly differ (random bytes 12-15)
// Note: 1 in 2^32 chance of collision is acceptable to document rather than retry.
$this->assertNotEquals($data1['perms'], $data2['perms'], 'perms bytes should be random each time');
}
/** Issue 3: AES-256 with EncryptMetadata=false must store the flag. */
public function testEncryptMetadataFalse(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(
true,
\md5('file_id'),
3,
['print'],
'alpha',
'beta',
null,
false, // encryptMetadata = false
);
$data = $encrypt->getEncryptionData();
$this->assertFalse($data['EncryptMetadata']);
}
/** Issue 4: AES-256 R6 (mode 4) encrypt round-trip. */
public function testEncryptFour(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 4, ['print'], 'alpha', 'beta');
$result = $encrypt->encrypt(4, 'alpha');
$this->assertEquals(32, \strlen($result));
}
/** Issue 4: AES-256 R6 (mode 4) encryptdata must have V=6 and mode=4. */
public function testEncryptFourSettings(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 4, ['print'], 'alpha', 'beta');
$data = $encrypt->getEncryptionData();
$this->assertEquals(4, $data['mode']);
$this->assertEquals(6, $data['V']);
$this->assertEquals(256, $data['Length']);
$this->assertEquals('AESV3', $data['CF']['CFM']);
$this->assertEquals(48, \strlen($data['U']));
$this->assertEquals(48, \strlen($data['O']));
$this->assertEquals(32, \strlen($data['UE']));
$this->assertEquals(32, \strlen($data['OE']));
$this->assertEquals(16, \strlen($data['perms']));
}
/** Issue 4: AES-256 R6 (mode 4) public-key encryption. */
public function testEncryptPubFour(): void
{
$pubkeys = [[
'c' => __DIR__ . '/data/cert.pem',
'p' => ['print'],
]];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 4, ['print'], 'alpha', 'beta', $pubkeys);
$result = $encrypt->encrypt(4, 'alpha');
$this->assertEquals(32, \strlen($result));
}
public function testGetEncryptionData(): void
{
$this->bcRunIgnoringUserDeprecations(function (): void {
$permissions = ['print'];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 0, $permissions, 'alpha', 'beta');
$result = $encrypt->getEncryptionData();
$this->assertEquals(2_147_422_008, $result['protection']);
$this->assertEquals(1, $result['V']);
$this->assertEquals(40, $result['Length']);
$this->assertEquals('V2', $result['CF']['CFM']);
});
}
public function testGetObjectKey(): void
{
$permissions = ['print', 'modify', 'copy', 'annot-forms', 'fill-forms', 'extract', 'assemble', 'print-high'];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 2, $permissions, 'alpha', 'beta');
$result = $encrypt->getObjectKey(123);
$this->assertEquals('93879594941619c98047c404192b977d', \bin2hex($result));
}
public function testGetUserPermissionCode(): void
{
$permissions = [
'owner',
'print',
'modify',
'copy',
'annot-forms',
'fill-forms',
'extract',
'assemble',
'print-high',
];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt();
$result = $encrypt->getUserPermissionCode($permissions, 0);
$this->assertEquals(2_147_421_954, $result);
}
public function testGetUserPermissionCodeIgnoreInvalidPermission(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt();
$result = $encrypt->getUserPermissionCode(['invalid-permission'], 0);
$this->assertEquals(2_147_422_012, $result);
}
public function testConvertHexStringToString(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt();
$result = $encrypt->convertHexStringToString('');
$this->assertEquals('', $result);
$result = $encrypt->convertHexStringToString('68656c6c6f20776f726c64');
$this->assertEquals('hello world', $result);
$result = $encrypt->convertHexStringToString('68656c6c6f20776f726c642');
$this->assertEquals('hello world ', $result);
}
public function testConvertStringToHexString(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt();
$result = $encrypt->convertStringToHexString('');
$this->assertEquals('', $result);
$result = $encrypt->convertStringToHexString('hello world');
$this->assertEquals('68656c6c6f20776f726c64', $result);
}
public function testEncodeNameObject(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt();
$result = $encrypt->encodeNameObject('');
$this->assertEquals('', $result);
$result = $encrypt->encodeNameObject('059akzAKZ#_=-');
$this->assertEquals('059akzAKZ#_=-', $result);
$result = $encrypt->encodeNameObject('059[]{}+~*akzAKZ#_=-');
$this->assertEquals('059#5B#5D#7B#7D#2B#7E#2AakzAKZ#_=-', $result);
}
public function testEscapeString(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt();
$result = $encrypt->escapeString('');
$this->assertEquals('', $result);
$result = $encrypt->escapeString('hello world');
$this->assertEquals('hello world', $result);
$result = $encrypt->escapeString('(hello world) slash \\' . \chr(13));
$this->assertEquals('\\(hello world\\) slash \\\\\r', $result);
}
public function testEncryptStringDisabled(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt();
$result = $encrypt->encryptString('');
$this->assertEquals('', $result);
$result = $encrypt->encryptString('hello world');
$this->assertEquals('hello world', $result);
$result = $encrypt->encryptString('(hello world) slash \\' . \chr(13) . \chr(250));
$this->assertEquals('(hello world) slash \\' . \chr(13) . \chr(250), $result);
}
public function testEncryptStringEnabled(): void
{
$this->bcRunIgnoringUserDeprecations(function (): void {
$permissions = [
'print',
'modify',
'copy',
'annot-forms',
'fill-forms',
'extract',
'assemble',
'print-high',
];
$enc = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 0, $permissions, 'alpha');
$result = $enc->encryptString('(hello world) slash \\' . \chr(13));
$this->assertEquals('728cc693be1e4c1fb6b7e7b2a34644ad', \md5($result));
$enc = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 1, $permissions, 'alpha', 'beta');
$result = $enc->encryptString('(hello world) slash \\' . \chr(13));
$this->assertEquals('258ad774ddeec21b3b439a720df18e0d', \md5($result));
});
}
public function testEscapeDataStringDisabled(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt();
$result = $encrypt->escapeDataString('');
$this->assertEquals('()', $result);
$result = $encrypt->escapeDataString('hello world');
$this->assertEquals('(hello world)', $result);
$result = $encrypt->escapeDataString('(hello world) slash \\' . \chr(13));
$this->assertEquals('(\\(hello world\\) slash \\\\\r)', $result);
}
public function testEscapeDataStringEnabled(): void
{
$this->bcRunIgnoringUserDeprecations(function (): void {
$permissions = [
'print',
'modify',
'copy',
'annot-forms',
'fill-forms',
'extract',
'assemble',
'print-high',
];
$enc = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 0, $permissions, 'alpha');
$result = $enc->escapeDataString('(hello world) slash \\' . \chr(13));
$this->assertEquals('24f60765c1c07a44fc3c9b44d2f55dbc', \md5($result));
$enc = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 1, $permissions, 'alpha', 'beta');
$result = $enc->escapeDataString('(hello world) slash \\' . \chr(13));
$this->assertEquals('ebc28272f4aff661fa0b7764d791fb79', \md5($result));
});
}
public function testGetFormattedDate(): void
{
$permissions = ['print', 'modify', 'copy', 'annot-forms', 'fill-forms', 'extract', 'assemble', 'print-high'];
$enc = new \Com\Tecnick\Pdf\Encrypt\Encrypt(false);
$result = $enc->getFormattedDate();
$this->assertEquals('(D:', \substr($result, 0, 3));
$this->assertEquals("+00'00')", \substr($result, -8));
$this->bcRunIgnoringUserDeprecations(function () use ($permissions): void {
$enc = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 0, $permissions, 'alpha');
$result = $enc->getFormattedDate();
$this->assertNotEmpty($result);
});
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/OutputTest.php
Vendored
+279
View File
@@ -0,0 +1,279 @@
<?php
/**
* OutputTest.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Test;
/**
* Output Test
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class OutputTest extends TestUtil
{
/** @param array<string,mixed> $data */
protected function setRawEncryptData(OutputTestDouble $output, array $data): void
{
$property = new \ReflectionProperty(\Com\Tecnick\Pdf\Encrypt\Output::class, 'encryptdata');
$property->setValue($output, $data);
}
/** @return array<string,mixed> */
protected function getRawEncryptData(OutputTestDouble $output): array
{
$property = new \ReflectionProperty(\Com\Tecnick\Pdf\Encrypt\Output::class, 'encryptdata');
/** @var array<string,mixed> */
return $property->getValue($output);
}
protected function getOutputTestDouble(): OutputTestDouble
{
return new OutputTestDouble();
}
public function testGetPdfEncryptionObjZero(): void
{
$this->bcRunIgnoringUserDeprecations(function (): void {
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 0, ['print'], 'alpha', 'beta');
$pon = 122;
$result = $encrypt->getPdfEncryptionObj($pon);
$expected =
'3132332030206f626a0a3c3c0a2f46696c746572202f5374616e646172640a2f5620310a2f4c656e6774682034300a2'
. 'f5220320a2f4f20280542fa0e15496869a825cd08c633ac10675c5c02167661241f5369895d768278b1290a2f552028550539dc185'
. 'e79d4c676f803babbdc50acf8a4427d2de5303d59e7c315b30eba290a2f5020323134373432323030380a2f456e63727970744d657'
. '4616461746120747275650a3e3e0a656e646f626a0a';
$this->assertEquals($expected, \bin2hex($result));
});
}
public function testGetPdfEncryptionObjOne(): void
{
$this->bcRunIgnoringUserDeprecations(function (): void {
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 1, ['print'], 'alpha', 'beta');
$pon = 122;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertTrue(\strlen($result) > 150);
});
}
public function testGetPdfEncryptionObjTwo(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 2, ['print'], 'alpha', 'beta');
$pon = 122;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertTrue(\strlen($result) > 200);
}
public function testGetPdfEncryptionObjThree(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta');
$pon = 122;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertTrue(\strlen($result) > 300);
}
public function testGetPdfEncryptionObjThreePub(): void
{
$pubkeys = [[
'c' => __DIR__ . '/data/cert.pem',
'p' => ['print'],
]];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta', $pubkeys);
$pon = 122;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertTrue(\strlen($result) > 200);
}
public function testGetPdfEncryptionObjOnePub(): void
{
$this->bcRunIgnoringUserDeprecations(function (): void {
$pubkeys = [[
'c' => __DIR__ . '/data/cert.pem',
'p' => ['print'],
]];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(
true,
\md5('file_id'),
1,
['print'],
'alpha',
'beta',
$pubkeys,
);
$pon = 122;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertTrue(\strlen($result) > 100);
});
}
public function testGetPdfEncryptionObjFour(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 4, ['print'], 'alpha', 'beta');
$pon = 122;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertTrue(\strlen($result) > 300);
$this->assertStringContainsString('/V 6', $result);
$this->assertStringContainsString('/R 6', $result);
$this->assertStringContainsString('/Length 256', $result);
}
/** Issue 1: EFF entry must appear for V >= 4 when embedded file encryption is enabled. */
public function testGetPdfEncryptionObjEff(): void
{
// V >= 4 (mode 2 = AES-128, V=4) with embedded file encryption enabled (default)
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(
true,
\md5('file_id'),
2,
['print'],
'alpha',
'beta',
null,
true, // encryptMetadata
true, // encryptEmbeddedFiles
);
$pon = 0;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertStringContainsString('/EFF /StdCF', $result);
}
/** Issue 1: No EFF entry when embedded file encryption is disabled. */
public function testGetPdfEncryptionObjNoEff(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(
true,
\md5('file_id'),
2,
['print'],
'alpha',
'beta',
null,
true, // encryptMetadata
false, // encryptEmbeddedFiles = false
);
$pon = 0;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertStringNotContainsString('/EFF', $result);
}
/** Issue 3: EncryptMetadata=false must appear in standard-mode output. */
public function testGetPdfEncryptionObjEncryptMetadataFalse(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(
true,
\md5('file_id'),
3,
['print'],
'alpha',
'beta',
null,
false, // encryptMetadata = false
);
$pon = 0;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertStringContainsString('/EncryptMetadata false', $result);
}
/** Issue 3: EncryptMetadata=true (default) must appear as true in output. */
public function testGetPdfEncryptionObjEncryptMetadataTrue(): void
{
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 3, ['print'], 'alpha', 'beta');
$pon = 0;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertStringContainsString('/EncryptMetadata true', $result);
}
/** Issue 4: mode 4 pubkey output must contain Recipients. */
public function testGetPdfEncryptionObjFourPub(): void
{
$pubkeys = [[
'c' => __DIR__ . '/data/cert.pem',
'p' => ['print'],
]];
$encrypt = new \Com\Tecnick\Pdf\Encrypt\Encrypt(true, \md5('file_id'), 4, ['print'], 'alpha', 'beta', $pubkeys);
$pon = 122;
$result = $encrypt->getPdfEncryptionObj($pon);
$this->assertTrue(\strlen($result) > 200);
$this->assertStringContainsString('/V 6', $result);
}
public function testSetMissingValuesCopiesEncryptMetadataFalseToCf(): void
{
$output = $this->getOutputTestDouble();
$data = $this->getRawEncryptData($output);
if (!isset($data['CF']) || !\is_array($data['CF'])) {
$this->fail('Missing CF array in encryptdata');
}
/** @var array<string,mixed> $cfData */
$cfData = $data['CF'];
$data['EncryptMetadata'] = false;
$cfData['EncryptMetadata'] = true;
$data['CF'] = $cfData;
$this->setRawEncryptData($output, $data);
$output->callSetMissingValues();
$result = $this->getRawEncryptData($output);
if (!isset($result['CF']) || !\is_array($result['CF'])) {
$this->fail('Missing CF array in encryptdata');
}
/** @var array<string,mixed> $cfData */
$cfData = $result['CF'];
if (!\array_key_exists('EncryptMetadata', $cfData) || !\is_bool($cfData['EncryptMetadata'])) {
$this->fail('Missing boolean EncryptMetadata in CF array');
}
$this->assertFalse($cfData['EncryptMetadata']);
}
public function testSetMissingValuesCopiesEncryptMetadataTrueToCf(): void
{
$output = $this->getOutputTestDouble();
$data = $this->getRawEncryptData($output);
if (!isset($data['CF']) || !\is_array($data['CF'])) {
$this->fail('Missing CF array in encryptdata');
}
/** @var array<string,mixed> $cfData */
$cfData = $data['CF'];
$data['EncryptMetadata'] = true;
$cfData['EncryptMetadata'] = false;
$data['CF'] = $cfData;
$this->setRawEncryptData($output, $data);
$output->callSetMissingValues();
$result = $this->getRawEncryptData($output);
if (!isset($result['CF']) || !\is_array($result['CF'])) {
$this->fail('Missing CF array in encryptdata');
}
/** @var array<string,mixed> $cfData */
$cfData = $result['CF'];
if (!\array_key_exists('EncryptMetadata', $cfData) || !\is_bool($cfData['EncryptMetadata'])) {
$this->fail('Missing boolean EncryptMetadata in CF array');
}
$this->assertTrue($cfData['EncryptMetadata']);
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/OutputTestDouble.php
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<?php
/**
* OutputTestDouble.php
*
* @since 2026-04-19
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Test;
class OutputTestDouble extends \Com\Tecnick\Pdf\Encrypt\Output
{
public function callSetMissingValues(): void
{
$this->setMissingValues();
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/TestUtil.php
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<?php
/**
* TestUtil.php
*
* @since 2020-12-19
* @category Library
* @package file
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2015-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-file
*
* This file is part of tc-lib-file software library.
*/
namespace Test;
use PHPUnit\Framework\TestCase;
/**
* Test Util
*
* @since 2020-12-19
* @category Library
* @package file
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2015-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-file
*/
class TestUtil extends TestCase
{
/**
* @param class-string<\Throwable> $exception
*/
public function bcExpectException(string $exception): void
{
parent::expectException($exception);
}
/**
* Execute a callback and assert that it triggers a matching user deprecation.
*
* @param callable():void $callback
*/
public function bcAssertUserDeprecationMessageMatches(string $pattern, callable $callback): void
{
$messages = [];
\set_error_handler(static function (int $errno, string $errstr) use (&$messages): bool {
if ($errno !== E_USER_DEPRECATED) {
return false;
}
$messages[] = $errstr;
return true;
});
try {
$callback();
} finally {
\restore_error_handler();
}
$this->assertNotEmpty($messages, 'Expected a user deprecation but none was triggered.');
foreach ($messages as $message) {
if (\preg_match($pattern, $message) === 1) {
return;
}
}
$this->fail(
'User deprecation message did not match pattern ' . $pattern . '. Got: ' . \implode(' | ', $messages),
);
}
/**
* Execute a callback while swallowing user deprecations.
*
* @template T
* @param callable():T $callback
* @return T
*/
public function bcRunIgnoringUserDeprecations(callable $callback): mixed
{
\set_error_handler(static fn(int $errno): bool => $errno === E_USER_DEPRECATED);
try {
return $callback();
} finally {
\restore_error_handler();
}
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/Type/AESTest.php
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<?php
/**
* AESTest.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Test;
/**
* AES encryption Test
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class AESTest extends TestUtil
{
protected function getTestObject(): \Com\Tecnick\Pdf\Encrypt\Type\AES
{
return new \Com\Tecnick\Pdf\Encrypt\Type\AES();
}
public function testEncrypt128(): void
{
$aes = $this->getTestObject();
$data = 'alpha';
$key = '0123456789abcdef'; // 16 bytes = 128 bit KEY
$enc_a = $aes->encrypt($data, $key);
$enc_b = $aes->encrypt($data, $key, 'aes-128-cbc');
$this->assertEquals(\strlen($enc_a), \strlen($enc_b));
$aesSixteen = new \Com\Tecnick\Pdf\Encrypt\Type\AESSixteen();
$enc_c = $aesSixteen->encrypt($data, $key);
$this->assertEquals(\strlen($enc_a), \strlen($enc_c));
}
public function testEncrypt256(): void
{
$aes = $this->getTestObject();
$data = 'alpha';
$key = '0123456789abcdef0123456789abcdef'; // 32 bytes = 256 bit KEY
$enc_a = $aes->encrypt($data, $key, '');
$enc_b = $aes->encrypt($data, $key, 'aes-256-cbc');
$this->assertEquals(\strlen($enc_a), \strlen($enc_b));
$aesThirtytwo = new \Com\Tecnick\Pdf\Encrypt\Type\AESThirtytwo();
$enc_c = $aesThirtytwo->encrypt($data, $key);
$this->assertEquals(\strlen($enc_a), \strlen($enc_c));
}
/**
* AES::encrypt() output = 16-byte IV + PKCS#7-padded ciphertext.
* padded_len = ceil((n + 1)/16) * 16, so aligned input gets one full block.
* Total = padded_len + 16.
*
* With the old truncation bug, pad() always produced 16 bytes, so every
* plaintext — no matter how long — produced a 32-byte output. These tests
* verify that the output size grows correctly with the plaintext length.
*/
public function testEncrypt128LongData(): void
{
$aes = $this->getTestObject();
$key = '0123456789abcdef'; // 16 bytes = 128 bit KEY
// 17 bytes → padded to 32 → 32 ciphertext + 16 IV = 48
$enc17 = $aes->encrypt(\str_repeat('x', 17), $key, 'aes-128-cbc');
$this->assertSame(48, \strlen($enc17));
// 32 bytes → padded to 48 (full PKCS#7 block) → 48 + 16 = 64
$enc32 = $aes->encrypt(\str_repeat('x', 32), $key, 'aes-128-cbc');
$this->assertSame(64, \strlen($enc32));
// 33 bytes → padded to 48 → 48 + 16 = 64
$enc33 = $aes->encrypt(\str_repeat('x', 33), $key, 'aes-128-cbc');
$this->assertSame(64, \strlen($enc33));
// Short input must produce shorter output than long input.
$encShort = $aes->encrypt('alpha', $key, 'aes-128-cbc'); // 5 bytes → 32
$this->assertGreaterThan(\strlen($encShort), \strlen($enc33));
}
public function testEncrypt256LongData(): void
{
$aes = $this->getTestObject();
$key = '0123456789abcdef0123456789abcdef'; // 32 bytes = 256 bit KEY
// 17 bytes → padded to 32 → 32 ciphertext + 16 IV = 48
$enc17 = $aes->encrypt(\str_repeat('x', 17), $key, 'aes-256-cbc');
$this->assertSame(48, \strlen($enc17));
// 32 bytes → padded to 48 (full PKCS#7 block) → 48 + 16 = 64
$enc32 = $aes->encrypt(\str_repeat('x', 32), $key, 'aes-256-cbc');
$this->assertSame(64, \strlen($enc32));
// 100 bytes → padded to 112 → 112 + 16 = 128
$enc100 = $aes->encrypt(\str_repeat('x', 100), $key, 'aes-256-cbc');
$this->assertSame(128, \strlen($enc100));
$aesThirtytwo = new \Com\Tecnick\Pdf\Encrypt\Type\AESThirtytwo();
$enc100b = $aesThirtytwo->encrypt(\str_repeat('x', 100), $key);
$this->assertSame(\strlen($enc100), \strlen($enc100b));
}
public function testEncryptException(): void
{
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
$aes = $this->getTestObject();
$aes->encrypt('alpha', '12345', 'ERROR');
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/Type/AESnopadTest.php
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<?php
/**
* AESnopadTest.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Test;
use Com\Tecnick\Pdf\Encrypt\Type\AESnopad;
/**
* AESnopad encryption Test
*
* Verifies that pad() extends data to the next multiple of BLOCKSIZE without
* truncating, so that stream data longer than one AES block is not silently
* discarded before encryption.
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class AESnopadTest extends TestUtil
{
/**
* 32-byte key used throughout (exact multiple of BLOCKSIZE, no padding applied).
*/
private const KEY256 = '0123456789abcdef0123456789abcdef';
protected function getTestObject(): AESnopad
{
return new AESnopad();
}
/**
* AESnopad::encrypt() returns padded_len bytes of ciphertext (no IV prefix).
* padded_len = ceil(n / 16) * 16, but if n % 16 == 0 then padded_len = n.
*
* The formula below matches that behaviour for all cases tested.
*/
private function expectedCiphertextLen(int $plainLen): int
{
$rem = $plainLen % AESnopad::BLOCKSIZE;
return $rem === 0 ? $plainLen : $plainLen + (AESnopad::BLOCKSIZE - $rem);
}
// --- output-length tests (validate pad() indirectly) ---
public function testEncryptOutputLenShortData(): void
{
// 5 bytes → padded to 16
$enc = $this->getTestObject()->encrypt(\str_repeat('x', 5), self::KEY256);
$this->assertSame($this->expectedCiphertextLen(5), \strlen($enc));
}
public function testEncryptOutputLenExactlyOneBlock(): void
{
// 16 bytes → already a multiple, no extra padding → 16
$enc = $this->getTestObject()->encrypt(\str_repeat('x', 16), self::KEY256);
$this->assertSame($this->expectedCiphertextLen(16), \strlen($enc));
}
public function testEncryptOutputLenJustOverOneBlock(): void
{
// 17 bytes → padded to 32
// This test would fail with the old code (which truncated data to 16 bytes,
// producing only 16 bytes of ciphertext regardless of input length).
$enc = $this->getTestObject()->encrypt(\str_repeat('x', 17), self::KEY256);
$this->assertSame($this->expectedCiphertextLen(17), \strlen($enc));
}
public function testEncryptOutputLenTwoBlocks(): void
{
// 32 bytes → padded to 32
$enc = $this->getTestObject()->encrypt(\str_repeat('x', 32), self::KEY256);
$this->assertSame($this->expectedCiphertextLen(32), \strlen($enc));
}
public function testEncryptOutputLenJustOverTwoBlocks(): void
{
// 33 bytes → padded to 48
$enc = $this->getTestObject()->encrypt(\str_repeat('x', 33), self::KEY256);
$this->assertSame($this->expectedCiphertextLen(33), \strlen($enc));
}
public function testEncryptOutputLenLargeData(): void
{
// 100 bytes → padded to 112
$enc = $this->getTestObject()->encrypt(\str_repeat('x', 100), self::KEY256);
$this->assertSame($this->expectedCiphertextLen(100), \strlen($enc));
}
/**
* Longer input must produce longer ciphertext.
* With the old bug, both short and long inputs produced 16-byte ciphertext.
*/
public function testCiphertextGrowsWithPlaintext(): void
{
$aesnopad = $this->getTestObject();
$key = self::KEY256;
$short = $aesnopad->encrypt(\str_repeat('a', 5), $key);
$long = $aesnopad->encrypt(\str_repeat('a', 100), $key);
$this->assertGreaterThan(\strlen($short), \strlen($long));
}
// --- AES-128-CBC variant ---
public function testEncryptAes128OutputLen(): void
{
// 17 bytes with aes-128-cbc → padded to 32
$enc = $this->getTestObject()->encrypt(\str_repeat('x', 17), self::KEY256, AESnopad::IVECT, 'aes-128-cbc');
$this->assertSame($this->expectedCiphertextLen(17), \strlen($enc));
}
// --- deterministic output with fixed IV ---
public function testEncryptDeterministicWithFixedIv(): void
{
$aesnopad = $this->getTestObject();
$data = \str_repeat('x', 32);
$key = self::KEY256;
$enc1 = $aesnopad->encrypt($data, $key, AESnopad::IVECT, 'aes-256-cbc');
$enc2 = $aesnopad->encrypt($data, $key, AESnopad::IVECT, 'aes-256-cbc');
$this->assertSame($enc1, $enc2);
}
// --- exception paths ---
public function testCheckCipherInvalidName(): void
{
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
$this->getTestObject()->checkCipher('des-cbc');
}
public function testEncryptInvalidCipher(): void
{
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
$this->getTestObject()->encrypt('data', self::KEY256, AESnopad::IVECT, 'des-cbc');
}
public function testCheckCipherUnavailable(): void
{
$missingCipher = null;
$available = \openssl_get_cipher_methods();
foreach (AESnopad::VALID_CIPHERS as $cipher) {
if (\in_array($cipher, $available, true)) {
continue;
}
$missingCipher = $cipher;
break;
}
if ($missingCipher === null) {
$this->markTestSkipped('All AESnopad valid ciphers are available on this runtime.');
}
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
$this->getTestObject()->checkCipher($missingCipher);
}
public function testDecryptInvalidCiphertextLength(): void
{
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
$this->getTestObject()->decrypt('short', self::KEY256, AESnopad::IVECT, 'aes-256-cbc');
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/Type/MDFiveSixteenTest.php
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<?php
/**
* MDFiveSixteenTest.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Test;
/**
* MD5-16 encryption Test
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class MDFiveSixteenTest extends TestUtil
{
protected function getTestObject(): \Com\Tecnick\Pdf\Encrypt\Type\MDFiveSixteen
{
return new \Com\Tecnick\Pdf\Encrypt\Type\MDFiveSixteen();
}
public function testEncrypt(): void
{
$mdFiveSixteen = $this->getTestObject();
$result = $mdFiveSixteen->encrypt('hello');
$this->assertEquals('5d41402abc4b2a76b9719d911017c592', \bin2hex($result));
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/Type/RCFourTest.php
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<?php
/**
* RCFourTest.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Test;
/**
* RC4 encryption Test
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class RCFourTest extends TestUtil
{
protected function getTestObject(): \Com\Tecnick\Pdf\Encrypt\Type\RCFour
{
return new \Com\Tecnick\Pdf\Encrypt\Type\RCFour();
}
public function testEncrypt40(): void
{
$rcFour = $this->getTestObject();
$data = 'alpha';
$key = '12345'; // 5 bytes = 40 bit KEY
$enc_a = $rcFour->encrypt($data, $key, '');
$enc_b = $rcFour->encrypt($data, $key, 'RC4-40');
$this->assertEquals($enc_a, $enc_b);
$rcFourFive = new \Com\Tecnick\Pdf\Encrypt\Type\RCFourFive();
$enc_c = $rcFourFive->encrypt($data, $key);
$this->assertEquals($enc_a, $enc_c);
}
public function testEncrypt128(): void
{
$rcFour = $this->getTestObject();
$data = 'alpha';
$key = '0123456789abcdef'; // 16 bytes = 128 bit KEY
$enc_a = $rcFour->encrypt($data, $key);
$enc_b = $rcFour->encrypt($data, $key, 'RC4');
$this->assertEquals($enc_a, $enc_b);
$rcFourSixteen = new \Com\Tecnick\Pdf\Encrypt\Type\RCFourSixteen();
$enc_c = $rcFourSixteen->encrypt($data, $key);
$this->assertEquals($enc_a, $enc_c);
}
public function testEncryptException(): void
{
$this->bcExpectException(\Com\Tecnick\Pdf\Encrypt\Exception::class);
$rcFour = $this->getTestObject();
$rcFour->encrypt('alpha', '12345', 'ERROR');
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/Type/SeedTest.php
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<?php
/**
* SeedTest.php
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*
* This file is part of tc-lib-pdf-encrypt software library.
*/
namespace Test;
/**
* Seed Test
*
* @since 2011-05-23
* @category Library
* @package PdfEncrypt
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-encrypt
*/
class SeedTest extends TestUtil
{
protected function getTestObject(): \Com\Tecnick\Pdf\Encrypt\Type\Seed
{
return new \Com\Tecnick\Pdf\Encrypt\Type\Seed();
}
public function testEncrypt(): void
{
$seed = $this->getTestObject();
$result = $seed->encrypt('hello', 'world');
$this->assertNotEmpty($result);
}
public function testEncryptRaw(): void
{
$seed = $this->getTestObject();
$result = $seed->encrypt('hello', 'world', 'raw');
$this->assertNotEmpty($result);
}
}
vendor/tecnickcom/tc-lib-pdf-encrypt/test/data/cert.pem
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-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----
-----BEGIN CERTIFICATE-----
MIICsDCCAhmgAwIBAgIUAQb8DRdrYNBU56/iGjwLAKJ3dLQwDQYJKoZIhvcNAQEL
BQAwajELMAkGA1UEBhMCVUsxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoM
GEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEjMCEGCSqGSIb3DQEJARYUdGVzdEBl
eGFtcGxlLmludmFsaWQwHhcNMjIxMjIxMTExNjA5WhcNMzIxMjE4MTExNjA5WjBq
MQswCQYDVQQGEwJVSzETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50
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-----END CERTIFICATE-----