AWS Encryption SDK for C
ObjectivePGP is an open-source library for iOS and macOS
Easy-to-use and powerful homomorphic encryption library
AWS Encryption SDK
AWS Encryption SDK
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Bug-fix-only libev port of shadowsocks
.NET Library for Encryption/Decryption
A Hybrid Cryptosystem with Steganography DLL
ISC lets you encrypt & decrypt text and files of any type up to 4GB