Cryptonit is an open source encryption tool for digitally signing and encrypting your documents.
Encryption/decryption is based on the following algorithms: DES, Triple DES (DES3), DESX, RC2 40/64/128 bits, RC4, RC5, Blowfish , CAST, IDEA, AES 128/192/256 bits
Cryptonit includes an address book so you can save and organize your contacts for easy and secure communications. Cryptonit supports multi-user accounts and is based on international industrial standards. Unlike similar proprietary products, Cryptonit uses standard exchange formats (PKCS).
All POSIX (Linux/BSD/UNIX-like OSes), Linux, Win2K, WinXP.