G - Physics – 06 – K
Patent
G - Physics
06
K
352/52, 340/70
G06K 19/06 (2006.01) G07F 7/10 (2006.01)
Patent
CA 1129028
METHOD AND APPARATUS FOR ACHIEVING SECURE PASSWORD VERIFICATION ABSTRACT A method and apparatus for identifying an individual holder (person) of an unalterable charge card-like device (CARD) at a utilization terminal (U/I Terminal) wherein a unique user entered key (asserted key KA) is handled in a highly secure manner. The holder of the CARD causes same to be placed in a data coupling mode with the U/I Terminal. At this point, the person enters asserted key (KA) via a keyboard associ- ated with said system. A random word is generated by at least one random word generator located in said CARD and this random word is encrypted utilizing the asserted key KA entered by the holder at the keyboard and also encrypted under a true key KT stored in said CARD. The random word encrypted under the asserted key KA is stored in said U/I Terminal and the random word encrypted under the true key KT is stored in the CARD. The U/I terminal then causes the encrypted word stored in the CARD to be transferred to the U/I Terminal and the two encrypted words are compared for identity. If the comparison is true, the holder of the card has entered the correct asserted key KA into the system, and his identity is presumed to be true. YO977-071
362549
International Business Machines Corporation
Kerr Alexander
LandOfFree
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