Method and system for suthenticating electronic memory cards

Details Method and system for suthenticating electronic memory cards Method and system for suthenticating electronic memory cards

1988-07-08

1990-03-20

Buczinski, Stephen C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 24, 380 30, 235380, H04K 100

Patent

active

049107747

ABSTRACT:
The method in suitable for authenticating electronic memory cards intended for authorizing the supply of goods or services after being processed by a card reader machine. The card memory includes at least three zones (Z.sub.1, Z.sub.2, Z.sub.3) comprising a first zone (Z.sub.1) which is readable from outside and which contains information (I) and a corresponding signature (S) obtained by means of secret data (D) recorded in the third zone (A.sub.3) which cannot be read from outside the card. The second zone (Z.sub.2) which can be read from outside the card contains the result of secret key and public key encoding all of the data contained in the first zone. This method provides effective protection against several types of fraud.

REFERENCES:
patent: 4204113 (1980-05-01), Giraud et al.
patent: 4206315 (1980-06-01), Matyas et al.
patent: 4211919 (1980-07-01), Ugon
patent: 4295041 (1981-10-01), Ugon
patent: 4388524 (1983-06-01), Walton
patent: 4405829 (1977-12-01), Rivest et al.
patent: 4471216 (1980-10-01), Herve
patent: 4572946 (1986-02-01), Schrenk
patent: 4575621 (1986-03-01), Dreifus
patent: 4625102 (1984-06-01), Rebjock et al.
patent: 4667088 (1987-05-01), Kramer et al.
patent: 4675516 (1984-10-01), Guion
patent: 4697072 (1987-09-01), Kawana
patent: 4705211 (1987-11-01), Honda et al.
patent: 4734568 (1988-03-01), Watanabe
patent: 4748320 (1988-05-01), Yorimoto et al.
patent: 4748668 (1988-05-01), Shamir et al.
patent: 4749982 (1988-06-01), Rikuna et al.
patent: 4758718 (1988-07-01), Fujisaki et al.
patent: 4766294 (1988-08-01), Nara et al.
patent: 4777355 (1988-10-01), Takahira
patent: 4797543 (1989-01-01), Watanabe
patent: 4816655 (1989-03-01), Musyck et al.

Affiliated with

Also associated with

Rating

Method and system for suthenticating electronic memory cards does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for suthenticating electronic memory cards, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for suthenticating electronic memory cards will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-797895