# phpseclib - PHP Secure Communications Library

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[](https://app.travis-ci.com/github/phpseclib/phpseclib)

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## Supporting phpseclib

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- [Become a backer or sponsor on Patreon](https://www.patreon.com/phpseclib)

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- [One-time donation via PayPal or crypto-currencies](http://sourceforge.net/donate/index.php?group_id=198487)

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- [Subscribe to Tidelift](https://tidelift.com/subscription/pkg/packagist-phpseclib-phpseclib?utm_source=packagist-phpseclib-phpseclib&utm_medium=referral&utm_campaign=readme)

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## Introduction

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MIT-licensed pure-PHP implementations of the following:

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SSH-2, SFTP, X.509, an arbitrary-precision integer arithmetic library, Ed25519 / Ed449 / Curve25519 / Curve449, ECDSA / ECDH (with support for 66 curves), RSA (PKCS#1 v2.2 compliant), DSA / DH, DES / 3DES / RC4 / Rijndael / AES / Blowfish / Twofish / Salsa20 / ChaCha20, GCM / Poly1305

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* [Browse Git](https://github.com/phpseclib/phpseclib)

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## Documentation

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* [Documentation / Manual](https://phpseclib.com/)

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* [API Documentation](https://api.phpseclib.com/1.0/) (generated by Doctum)

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## Branches

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### master

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* Development Branch

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* Unstable API

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* Do not use in production

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### 3.0

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* Long term support (LTS) release

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* Major expansion of cryptographic primitives

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* Minimum PHP version: 5.6.1

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* PSR-4 autoloading with namespace rooted at `\phpseclib3`

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* Install via Composer: `composer require phpseclib/phpseclib:~3.0`

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### 2.0

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* Long term support (LTS) release

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* Modernized version of 1.0

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* Minimum PHP version: 5.3.3

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* PSR-4 autoloading with namespace rooted at `\phpseclib`

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* Install via Composer: `composer require phpseclib/phpseclib:~2.0`

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### 1.0

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* Long term support (LTS) release

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* PHP4 compatible

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* Composer compatible (PSR-0 autoloading)

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* Install using Composer: `composer require phpseclib/phpseclib:~1.0`

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* Install using PEAR: See [phpseclib PEAR Channel Documentation](http://phpseclib.sourceforge.net/pear.htm)

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* [Download 1.0.20 as ZIP](http://sourceforge.net/projects/phpseclib/files/phpseclib1.0.20.zip/download)

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## Security contact information

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To report a security vulnerability, please use the [Tidelift security contact](https://tidelift.com/security). Tidelift will coordinate the fix and disclosure.

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## Support

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Need Support?

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* [Checkout Questions and Answers on Stack Overflow](http://stackoverflow.com/questions/tagged/phpseclib)

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* [Create a Support Ticket on GitHub](https://github.com/phpseclib/phpseclib/issues/new)

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* [Browse the Support Forum](http://www.frostjedi.com/phpbb/viewforum.php?f=46) (no longer in use)

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## Special Thanks

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Special Thanks to our Patreon sponsors!:

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- Allan Simon

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## Contributing

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1. Fork the Project

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2. Ensure you have Composer installed (see [Composer Download Instructions](https://getcomposer.org/download/))

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3. Install Development Dependencies

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``` sh

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composer install

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```

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4. Create a Feature Branch

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5. (Recommended) Run the Test Suite

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``` sh

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vendor/bin/phpunit

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```

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6. (Recommended) Check whether your code conforms to our Coding Standards by running

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``` sh

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vendor/bin/phing -f build/build.xml sniff

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```

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7. Send us a Pull Request

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