A computer system is disclosed that contains cryptographic keys and cryptographic key identifiers. The system has a repository cryptographic engine that communicates securely with a remote cryptographic engine, and the repository cryptographic engine is associated with a user data store. The user data...http://www.google.se/patents/US20030021417?utm_source=gb-gplus-sharePatent US20030021417 - Hidden link dynamic key manager for use in computer systems with database structure for storage of encrypted data and method for storage and retrieval of encrypted data
