Message authorization system for authorizing message for electro

Details Message authorization system for authorizing message for electro Message authorization system for authorizing message for electro

1996-12-17

1999-10-05

Gregory, Bernarr E.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 23, 380 30, 380 49, 380 59, H04L 932, H04L 930, H04L 900

Patent

active

059636491

ABSTRACT:
A message authorization system in which a sender sub-system and a verifier sub-system each have inherent secret information and inherent public information set corresponding to the secret information, the sender sub-system including an authorization data producing unit for producing authorization data dependent on the public information of the verifier sub-system and the secret information of the sender sub-system, and the verifier sub-system including a data verification unit for verifying authorization data received jointly with an electronic document from the sender sub-system based on the public information of the sender sub-system.

REFERENCES:
patent: 4625076 (1986-11-01), Okamoto et al.
patent: 5719940 (1998-02-01), Ahn et al.
Okamoto et al., "How to Utilize the Randomness of Zero-Knowledge Proofs", NTT Communications and Information Processing Laboratories, pp. 456-475, No Date.
Fiat et al., "How to Prove Yourself: Practical Solutions to Identification and Signature Problems" Department of Applied Mathematics, The Weizmann Institute of Science, pp. 187-194, No Date.
Brassard et al., "Minimum Disclosure Proofs of Knowledge", Journal of Computer and System Sciences, vol. 37, No. 2, (1988), pp. 156-189.
Markus Jakobsson et al., "Designated Verifier Proofs and Their Application," Lecture Notes in Computer Science 1070, Advances in Cryptology--EUROCRYPT '96, International Conference on the Theory and Application of Cryptographic Techniques, Saragossa, Spain, May 1996 Proceedings, pp. 143-154.

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