Management of cryptographic keys

Details Management of cryptographic keys Management of cryptographic keys

1988-04-18

1990-03-27

Buczinski, Stephen C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 29, 380 47, 380 49, 235379, 235380, H04L 900, G07F 710

Patent

active

049127624

ABSTRACT:
A method for simplifying key management in situations where unique cryptographic keying relationships are required end-to-end between pairs of parties and a symmetric encryption algorithm is to be used. It is useful in cases where the parties come from disjoint subsets of the total population of parties. The method provides some of the characteristics of a public key crypto system (PKS) utilizing the public identities of the parties as part of the key, but lacks the property of PKS which allows a party to independently generate a secret key which is known only to that party.

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IBM Technical Disclosure Bulletin, vol. 24, No. 1B, Jun. 1981, pp. 561-565, New York, U.S.; R. E. Lennon et al.: "Application for Personal Key Crypto with Insecure Terminals": p. 562, lines 1-8, p. 563, lines 5-21; p. 565, lines 9-11.
IBM Technical Disclosure Bulletin, vol. 22, No. 2, Jul. 1979, pp. 643-646, New York, U.S.; R. E. Lennon et al.: "Composite Cryptographic Session Keys for Enhanced Communication Security", p. 643, line 1-p. 644, line 15.
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IBM Technical Disclosure Bulletin, vol. 22, No. 2, Jul. 1979, pp. 636-639, New York, U.S.; R. E. Lennon et al.: "Cryptographic Key Distribution for Terminal Communications", p. 637, lines 3-42.

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