Bouncy Castle Crypto

The Bouncy Castle Crypto APIs is a lightweight cryptography API in Java with a provider for the JCE and JCA, a clean room implementation of the JCE 1.2.1, a library for reading and writing encoded ASN.1 objects and generator for: * Version 1 and Version 3 X.509 certificates and PKCS12 files. * Version 2 X.509 attribute certificates. * S/MIME and CMS (PKCS7). * OCSP (RFC 2560). * TSP (RFC 3161). * OpenPGP (RFC 2440). The lightweight API works with everything from the J2ME to the JDK 1.5