Encrypted volumes through command line
https://avgvstousb.com
A cross-platform crypto-steganography toolkit
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Halimede Certificate Authority
Decrypt encryptions without knowing the key or cipher
A novel and uber-secure way to store data, by Ajay Menon
A tiny, fast encryption tool in C
A family of FLEA-inspired CSPRNGs and Stream Ciphers
A family of small-state CSPRNGs and Stream Ciphers
Decrypts and encrypts substitution, transposition and vigenere ciphers
SSL Strength Evaluation and Test Utility
A simple example of polyalphabetic cipher in Java.