Method and apparatus for transaction card verification

Details Method and apparatus for transaction card verification Method and apparatus for transaction card verification

1993-10-26

1995-07-25

Cain, David C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 24, 380 25, 380 54, 380 3, H04K 100, H04L 900

Patent

active

054369703

ABSTRACT:
Techniques for multiple verification of transaction cards incorporating digital image information and authorization data onto a transaction card to assist in the card verification process. This technique requires the authorized card holder to have a picture identification accompany the application for the card. Picture information is converted to a digital image that is stored and used in one or a plurality of means for verifying that the presenter of the card, at the point of the transaction, is the authorized user. Such means include visual comparison of card presenter and extracted digital image information and verification that the data has not been altered. Encryption of the data, as it is read from the card, at the point of origin is used to formulate encoded authorization data that is then compared against like encoded authorized card holder data stored at a centrally located data base.

REFERENCES:
patent: 4972476 (1990-11-01), Nathans
patent: 4993068 (1991-02-01), Piosenka et al.
patent: 5280527 (1994-01-01), Gullman et al.

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