Complete and free implementation of the OpenPGP standard
GnuPG for Windows
Easy-to-use and powerful homomorphic encryption library
A simple, modern and secure encryption tool (and Go library)
Bug-fix-only libev port of shadowsocks
Keybase Go library, client, service, OS X, iOS, Android, Electron
A high-level OpenPGP library
CLI wrapper around aws-encryption-sdk-python
transparently encrypt files within a git repository
AWS Encryption SDK for C
Secure software enclave for storage of sensitive information in memory
Open source disk encryption with strong security for the Paranoid
Sign PDF with Digital Signature Certificate
Secure communication software
Open source file encryption software
antigift is simple cross-platform, files & folders encryption tool
STROBE cryptographic protocol framework
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Stanford Javascript Crypto Library
FIDO strong authentication, encryption, digital signature engine
Squeezer framework, build serverless dApps
more convenient one-time-pad encryption.
A Collection of Useful Java/Swing Code
Secure mail + Tor gateway