Method and system for personal identification

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United States of America Patent

PATENT NO 4879747
SERIAL NO

07170734

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The method and system of the invention utilizes a private key of a public-key cryptosystem key pair to encrypt a non-secret password into a digital signature. The password and the digital signature are then encoded and stored on a magnetic stripe or other memory device of the card. To effect a transaction, the digital signature on a received card must be shown to have been generated from the password on the received card. The password preferably includes a digitized photograph of the authorized cardholder which is capable of being displayed at the transaction terminal. This enables the operator of the terminal to verify the identity of the cardholder by visual inspection.

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First Claim

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Patent Owner(s)

  • DIGIMARC CORPORATION;YAMA CAPITAL, LLC;PLAROID CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Leighton, Frank T 965 Dedham St., Newton Center, MA 02159 6 1262
Micali, Silvio 224 Upland Rd., Cambridge, MA 02140 82 6391

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