A simple, modern and secure encryption tool (and Go library)
A high-level OpenPGP library
Easy-to-use and powerful homomorphic encryption library
Extremely fast non-cryptographic hash algorithm
Keybase Go library, client, service, OS X, iOS, Android, Electron
AWS Encryption SDK for C
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Stanford Javascript Crypto Library
FIDO strong authentication, encryption, digital signature engine
Format-Preserving Encryption Library for Java
Simple GUI tool for openssl to sign files with GOST algorithm
A Collection of Useful Java/Swing Code
Digital Encryption / Decryption Software
Data Access Layer 4 Java