The invention provides a cryptographic system and method with a key escrow feature that uses a method for verifiably splitting users' private encryption keys into components and for sending those components to trusted agents chosen by the particular users, and provides a system that uses modern public...http://www.google.de/patents/US20010050990?utm_source=gb-gplus-sharePatent US20010050990 - METHOD FOR INITIATING A STREAM-ORIENTED ENCRYPTED COMMUNICATION