Implementation of the EDIINT AS2 protocol (RFC 4130)
57 Hash Functions In One Program, plus each with HMAC or KMAC
Free and open-source PDF signing and verification application.
Anubis Involutional 128-bit SPN Block cipher Encryption Tool
Online Certificate Status Protocol with php
CMP [RFC4210] implementation based on OpenSSL
IPsec / IKEv2-based VPN software for Linux.
mod_gnutls apache module