Add digital signatures to PDF documents - GUI and CLI, cross-platform
Implementation of the EDIINT AS2 protocol (RFC 4130)
UFONet - Denial of Service Toolkit
Free portable cross-platform graphical multi-user password manager
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
Provides encryption & password hashing for your app or Hibernate POJOs
yubikey-agent is a seamless ssh-agent for YubiKeys
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Easy to use PKI library
HOFAT - graphical Hash Of File And Text calculator, 100%-pure Java
All-purpose Encryption and Security Adaptation
Cross-platform encrypted password and file database
sha3sum - A demonstration of the Keccak permutation.
CryptoEngine (C) is a DLL Library that provide Cryptography Services.
SES brings back the uncrackable onetime pad, with a digital twist.
Graphical user interface for the utility sfxcompress
Java native access for pc/sc, pkcs11, openct based on JNA
A Java application for transferring computer files in 5 letter groups