Cryptographic communication process

Details Cryptographic communication process Cryptographic communication process

1996-07-24

1998-08-04

Cain, David C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 28, 380 30, 380 46, H04K 100

Patent

active

057906750

ABSTRACT:
A novel asymmetrical cryptographic schema which can be used for enciphering, signature and authentication. The schema is based on low degree public polynomial equations with value in a finite ring K.
The mechanism is not necessarily bijective. The secret key makes it possible to hide polynomial equations with value in extensions of the ring K. The solving of these equations makes it possible, if one has the secret key, to execute operations which are not executable with the public key alone.

REFERENCES:
patent: 5537475 (1996-07-01), Micali
patent: 5577124 (1996-11-01), Anshel et al.
patent: 5600725 (1997-02-01), Rueppel et al.
Advances in Cryptology, Crypto '85, 18 Aug. 1985, Berlin, pp. 340-349, XP002000399, H. Fell et al., "Analysis of a Public Key Approach Based on Polynomial Substitution".
Electronics and Communications in Japan, Part 3 (Fundamental Electronic Science), Jul. 1990, USA, vol. 73, No. 7, ISSN 1042-0967, pp. 1-17, XP002000400, Matsumoto et al., "An Efficient Asymmetric Cryptosystem Supporting Authenticity and Confidentiality With Public Multivariate Polynomial Tuples".

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