Bug-fix-only libev port of shadowsocks
57 Hash Functions In One Program, plus each with HMAC or KMAC
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Leet is CCEx's software application for on-the-fly encryption (OTFE).
Another encryption algorithm
xxteac - XXTEA Encrypter/Decrypter
Fast and Strong Data Encryption Algorithm