The package contains: * Hash functions: MD2, MD4, RIPEMD, SHA256.

* Block encryption algorithms: AES, ARC2, Blowfish, CAST, DES,
Triple-DES, IDEA, RC5.

* Stream encryption algorithms: ARC4, simple XOR.

* Public-key algorithms: RSA, DSA, ElGamal, qNEW.

* Protocols: All-or-nothing transforms, chaffing/winnowing.

* Miscellaneous: RFC1751 module for converting 128-key keys into a
set of English words, primality testing.

* Some demo programs (currently all quite old and outdated).