Implementation of the EDIINT AS2 protocol (RFC 4130)
Free portable cross-platform graphical multi-user password manager
Encrypt and manage secret text data
Smoke: Android Crypto Chat Messenger
Mkpass - Command line Secure Password Generator
Hidding any binary flle < 64k in image
GMR digital signature system
FIDO strong authentication, encryption, digital signature engine
OpenPGP is a smart card/java card standard for signing and encrypting.
JavaCard/smart card implementation of the ISO7816 and PKI standard
Compiled into a single .jar file. Tiny Password Manager. Portable
CrococryptQuerl is a web-based file encryption & transfer tool
Kerberized Messaging Toolkit for Java