Enhanced cryptographic system and method with key escrow feature

Details Enhanced cryptographic system and method with key escrow feature Enhanced cryptographic system and method with key escrow feature

1997-04-11

1998-11-24

Barron, Jr., Gilberto

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 23, 380 30, H04L 932

Patent

active

058418652

ABSTRACT:
The invention provides a cryptographic system and method with a key escrow feature that uses a method for verifiably splitting users' private keys into components and for sending those components to trusted agents chosen by the particular users, and provides a system that uses a modern public key certificate management, enforced by a chip device that also self-certifies. A preferred embodiment of this invention provides a method for generating verifiably trusted communications among a plurality of users, comprising the steps of escrowing at a trusted escrow center a plurality of asymmetric cryptographic keys to be used by a plurality of users; verifying each of said plurality of keys at the escrow center; certifying the authorization of each of said plurality of keys upon verification; and initiating a communication from each of said plurality of users using a respective one of said plurality of keys contingent upon certification. Further preferred embodiments provide for rekeying and upgrading of device firmware using a certificate system, and encryption of stream-oriented data.

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