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Key Generation For Time Invariant Keys

IP.com Disclosure Number: IPCOM000068279D
Original Publication Date: 1979-Dec-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Matyas, SM Meyer, CH [+details]

Abstract

A method is disclosed for generating time invariant (constant) cryptographic keys. These keys may be used as terminal master keys, secondary communication keys and secondary file keys in the operation of a cryptosystem. By using a host processor cryptographic operation, the system master key is exploited in such a way that the produced keys depend on two independent random values; a user supplied value (RN) and a system supplied master key (KM).