CMP [RFC4210] implementation based on OpenSSL
SCSI Tape Encryption Manager
Support Tools for OpenSSH with multiple agents
Open Source Security tool to audit hashed passwords.
Guncat acts like unix's cat, decrypting pgp encrypted sections
sha3sum - A demonstration of the Keccak permutation.
Easy to use GlobalPlatform tool (and a Java library)
A minimal CSPRNG reflecting the Zen of cipher design
SES brings back the uncrackable onetime pad, with a digital twist.
A tiny, fast encryption tool in C
A family of small-state CSPRNGs and Stream Ciphers
A family of FLEA-inspired CSPRNGs and Stream Ciphers
jFileCrypt encrypts and decrypts files
ISC lets you encrypt & decrypt text and files of any type up to 4GB
xxteac - XXTEA Encrypter/Decrypter
Python Based Brute Force Password Cracking Assistant By Clownsec