System and method for regenerating secret keys in diffie-hellman

Details System and method for regenerating secret keys in diffie-hellman System and method for regenerating secret keys in diffie-hellman

1997-12-04

2000-11-21

Swann, Tod R.

Cryptography

Key management

Key escrow or recovery

380 28, 380 30, H04L 912, H04L 930

Patent

active

061513954

ABSTRACT:
The present invention is directed to a system and method for regenerating secret keys by escrowing only one private value in a Diffie-Hellman exchange where a public number is exchanged between the two participants according to the equation:

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Diffie et al., "New Directions in Cryptography," IEEE Transactions on Information Theory; vol. IT-22, No. 6, Nov. 1976, pp. 644-654.
Diffie, "The First Ten Years of Public-Key Cryptography", Proceedings of the IEEE, vol. 76, No. 5, May 1988, pp. 560-563.
Silvio Micali, "Guaranteed Partial Key Escrow," MIT/LCS/TM-537, Laboratory for Computer Science, Massachusetts Institutes of Technology, Cambridge, MA (1995).
Mihir Bellare and Shafi Goldwasser, "Verifiable Partial Key Escrow," University of California, San Diego, CSE Department Technical Report.
"Escrowed Encryption Standard (ESS)," National Institute for Standards and Technology, Federal Information Processing Standards Publication (FIPS PUB) 185, Feb. 9, 1994.
Jim Omura, "Alternatives to RSA: Using Diffie-Hellman with DSS," White Paper, Cylink, Sep. 1995.

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