Secure cryptographic operations using control vectors generated

Details Secure cryptographic operations using control vectors generated Secure cryptographic operations using control vectors generated

1993-08-10

1995-07-11

Gregory, Bernarr E.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 4, 380 9, 380 23, 380 25, 380 49, H04L 900

Patent

active

054328497

ABSTRACT:
The invention described herein suggests methods of cryptographic key management based on control vectors in which the control vectors are generated or derived internal to a cryptographic facility implementing a set of cryptographic operations. The methods of alternate control vector enforcement described in the present application provide a high-integrity facility to ensure that cryptographic keys are used in a manner consistent with the type and usage attributes assigned to the keys by the originator of those keys. Since the control vectors are generated or derived internal to the cryptographic facility on the basis of data contained in each cryptographic service request to the cryptographic facility, control vectors need not be stored or managed outside the cryptographic facility.

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