PHP Encryption
A secure and easy-to-use PHP library for encrypting data with keys or passwords.
What is PHP Encryption?
php-encryption is a PHP library for encrypting data with keys or passwords, designed to be secure and difficult to misuse. It solves the problem of insecure PHP encryption code commonly encountered in the ecosystem by providing a robust, easy-to-use API. The library ensures data at rest is protected using strong cryptographic practices.
PHP developers who need to encrypt data securely in their applications, such as those handling sensitive user information or file storage. It is particularly useful for developers who may not be cryptography experts but require reliable encryption.
Developers choose php-encryption because it prioritizes security and ease of use, reducing the risk of common vulnerabilities. Its API is designed to prevent misuse, and it has been extensively reviewed by the PHP security community, making it a trusted alternative to other encryption libraries.
Overview
Simple Encryption in PHP.
Use Cases
Best For
- Encrypting sensitive user data stored in databases
- Securing file uploads with password-based encryption
- Adding encryption to legacy PHP applications securely
- Protecting configuration files or environment variables
- Implementing client-server data encryption in PHP backends
- Educational projects teaching secure PHP encryption practices
Not Ideal For
- Projects requiring client-side or cross-platform encryption (the library explicitly recommends libsodium for this)
- Environments mandating formal, paid security audits for compliance (it relies on community review rather than a formal audit)
- Applications built on modern PHP frameworks with native encryption (e.g., Laravel's built-in encrypter, to avoid redundancy)
- Systems without OpenSSL support or using outdated OpenSSL versions (<1.0.1)
Pros & Cons
Pros
Prioritizes security with an API designed to prevent misuse, explicitly stated to address common vulnerabilities in PHP encryption code, similar to libsodium.
Offers a simple interface for encryption and decryption, encouraging secure patterns without requiring deep cryptography knowledge, as highlighted in the philosophy.
Only requires PHP with OpenSSL and bundles random_compat, simplifying installation and reducing maintenance overhead, as noted in the dependencies section.
Includes dedicated classes like KeyProtectedByPassword for password-based key encryption and File for secure file operations, making it versatile for data at rest.
Cons
Admits it hasn't undergone a formal, paid audit, relying on community review, which may not satisfy strict regulatory or enterprise security requirements.
Requires PHP 5.6+ and OpenSSL 1.0.1+, but using unsupported PHP versions (below 8.0) could introduce vulnerabilities, as warned in the README.
As a standalone library, it lacks built-in integrations with popular PHP frameworks or tools, potentially increasing setup complexity for modern stacks.
Frequently Asked Questions
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