A modern, portable, easy to use crypto library
Collection of standard and secure cryptographic algorithms
AWS Encryption SDK for C
Qtum Core Wallet
High-level cryptography interface powered by libsodium
An implementation of the IETF QUIC protocol
Modular, high-performance, zero-dependency cryptography stack
Add digital signatures to PDF documents - GUI and CLI, cross-platform
Open source disk encryption with strong security for the Paranoid
For full, incremental, compressed and encrypted backups or archives
FIDO® Certified StrongKey FIDO Server (SKFS)
A cross-platform crypto-steganography toolkit
Free portable cross-platform graphical multi-user password manager
Midbar is more than just an open source password vault!
cryptographic contract format
57 Hash Functions In One Program, plus each with HMAC or KMAC
Provides encryption & password hashing for your app or Hibernate POJOs
Free and open-source PDF signing and verification application.
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Halimede Certificate Authority