1. An open source C library of cryptographic algorithms. BeeCrypt is an open source cryptography library that contains highly optimized C and assembler implementations of many well-known algorithms including Blowfish, SHA-1, Diffie-Hellman, and ElGamal. Unlike some other crypto libraries, BeeCrypt is not designed to solve one specific problem, like file encryption, but to be a general purpose toolkit which can be used in a variety of applications. There are also no patent or royalty issues associated with BeeCrypt, and it is released under the GNU LGPL license, which means it can be used for free in both open source and closed source commercial projects. From Debian 3.0r0 APT