PHP Secure Communications Library is a set of pure PHP implementations of DES, 3DES, RC4, Rijndael, AES, RSA (PKCS#1 compliant [v2.1]), SSH-1, SSH-2, and SFTP.
Changes: This release adds lots of SFTP changes (the new functions touch, chown, chgrp, and truncate, improved file type detection, put() which can write to the middle of a file, mkdir which accepts the same parameters which PHP's mkdir does, the ability to upload/download 2GB files, and an (internal) redo _realpath function), across-the-board speedups for the various encryption algorithms, multi-factor authentication support for Net_SSH2, a $callback parameter for Net_SSH2::exec \, and Net_SFTP_StreamWrapper, Net_SCP, Crypt_Twofish, and Crypt_Blowfish.