sha3sum - A demonstration of the Keccak permutation.
NetCrypt - file-transfer utility providing secure data transfer
Easy to use GlobalPlatform tool (and a Java library)
Open source 8 bit random number generator
An encrypter/decrypter written on the weekends
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
A program to generate random reciprocal bigram tables
Replace text with POS equivalent text, in a reversible fashion.
Simple, lightweight, standalone command-line single file encryption.
Java Stacked Crypto