A high-level OpenPGP library
Keybase Go library, client, service, OS X, iOS, Android, Electron
Easy and fast file sharing from the command-line
STROBE cryptographic protocol framework
Cross-platform GMSM Security Suite written in Go
Korea Internet & Security Agency's Cipher Suite written in Go
Stanford Javascript Crypto Library
FIDO strong authentication, encryption, digital signature engine
DES attempt to crack code with 3 rounds
A Collection of Useful Java/Swing Code
A family of FLEA-inspired CSPRNGs and Stream Ciphers
A family of small-state CSPRNGs and Stream Ciphers
ISC lets you encrypt & decrypt text and files of any type up to 4GB