Bug-fix-only libev port of shadowsocks
Open-source code that enables you to use AES in CBC mode
Open-source code that enables you to use Serpent in CBC mode
STROBE cryptographic protocol framework
Cross-platform GMSM Security Suite written in Go
Korea Internet & Security Agency's Cipher Suite written in Go
A Social Media Encryption/Decryption Tool
A family of small-state CSPRNGs and Stream Ciphers
A family of FLEA-inspired CSPRNGs and Stream Ciphers
ISC lets you encrypt & decrypt text and files of any type up to 4GB
Various programs accessed through a shell developed by a teenager.