SLS Team Java Library
Stanford Javascript Crypto Library
GMR digital signature system
FIDO strong authentication, encryption, digital signature engine
A bespoke symmetric cipher.
The Remarc Mobile-ID USAT applet
Small encryption
PassEncryption is designed to encrypt files and generate passwords.
Crypt encryption and decryption is based on ASCII Table Shift.
SES brings back the uncrackable onetime pad, with a digital twist.
A family of FLEA-inspired CSPRNGs and Stream Ciphers
A family of small-state CSPRNGs and Stream Ciphers
ISC lets you encrypt & decrypt text and files of any type up to 4GB
Encrypt Your Text documents with XOR encryption
Java code that enables you to sign documents using a smart card.
p2p (sockets) chat with inKey encryption (32768 bit).
A simple example of polyalphabetic cipher in Java.
A symmetric-key cryptosystem implementation in VB.NET..
Extended AES Cryptography