Complete and free implementation of the OpenPGP standard
A simple, modern and secure encryption tool (and Go library)
GnuPG for Windows
Keybase Go library, client, service, OS X, iOS, Android, Electron
CLI wrapper around aws-encryption-sdk-python
Easy-to-use and powerful homomorphic encryption library
Extremely fast non-cryptographic hash algorithm
AWS Encryption SDK for C
A high-level OpenPGP library
Secure software enclave for storage of sensitive information in memory
transparently encrypt files within a git repository
Bug-fix-only libev port of shadowsocks
Open source disk encryption with strong security for the Paranoid
57 Hash Functions In One Program, plus each with HMAC or KMAC
Sign PDF with Digital Signature Certificate
Secure communication software
A simple file/folder encryption application based on the 7zip-full.
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
One-time-pad encryption using a virtual pad