Encrypt or decrypt 12, 15, 18, 21 or 24 BIP39 codewords array ("seed")
Free and open-source PDF signing and verification application.
FIDO® Certified StrongKey FIDO Server (SKFS)
cross-platform, encryption application
Encrypt and manage secret text data
Smoke: Android Crypto Chat Messenger
SLS Team Java Library
Certificate Authority administration application
lightweight bitmessage client
The Remarc Mobile-ID USAT applet
Java native access for pc/sc, pkcs11, openct based on JNA
A simple example of polyalphabetic cipher in Java.