Web Push library for PHP
Modern cryptography for PostgreSQL using libsodium
A high-level OpenPGP library
C++ cryptographic library (modern hash functions, ciphers, KDFs)
End-To-End is a crypto library to encrypt, decrypt, digital sign
Cross Language AES 256 Encryption Library
Stanford Javascript Crypto Library
PDF Library for Developers
FIDO strong authentication, encryption, digital signature engine
A small library to handle Android fingerprint API