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Method, data carrier and system for authentication of a user and a terminal

  • US 7,287,272 B1
  • Filed: 07/25/2000
  • Issued: 10/23/2007
  • Est. Priority Date: 07/30/1999
  • Status: Expired due to Fees
First Claim
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1. A method for authenticating a user of a data carrier for authorized use of the data carrier and for authenticating a data carrier terminal for authorized accessing by the data carrier terminal of memory areas of the data carrier, comprising the following steps:

  • reading a secret code from the data carrier by the data carrier terminal, wherein the secret code is stored on a memory location that can be accessed only by authorized data terminals or can be decrypted correctly only by authorized data terminals;

    presenting the read secret code to the user;

    after receiving an indication by the user that the presented read secret code is correct, reading a biometric feature presented by the user;

    comparing the read presented biometric feature with a biometric feature stored on the data carrier.

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