A simple, modern and secure encryption tool (and Go library)
A high-level OpenPGP library
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)
Create,extract and encrypt ZIP,GZIP,TAR,BZIP2,TAZ files on Java mobile
Set of useful tools for payment service development