Cryptographic process for protection against fraud

Details Cryptographic process for protection against fraud Cryptographic process for protection against fraud

1996-10-16

1999-01-19

Gregory, Bernarr E.

Cryptography

Particular algorithmic function encoding

380 23, 380 25, 380 30, H04K 904, H04L 900

Patent

active

058622241

ABSTRACT:
A cryptographic process is for protection against fraud. An allocation of a secret key K is made to a card and to an application and an input value R is defined. The card and application calculate the modulo 2 scalar product of binary vectors constituted by words of R and words of K. The application checks whether the result obtained by the card is in agreement with its own result. An exemplary application is low cost cards.

REFERENCES:
patent: 4926478 (1990-05-01), Gruenberg
patent: 5640455 (1997-06-01), Shimada
patent: 5666419 (1997-09-01), Yamamoto et al.

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