METHOD FOR AUTHENTICATING A DEVICE INCLUDING A PROCESSOR AND A SMART CARD BY PATTERN GENERATION
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Abstract
A method for authenticating a device comprising a processor and a smart card. A user unlocks the smart card using a PIN code. A secret key Kc of the smart card and the PIN code of the smart card is transmitted to the processor. The processor performs a cryptographic calculation using a secret key Kp of the processor, the PIN code, and Kc. A pattern is generated from the cryptographic calculation by the processor and transmitted to the user. The pattern generated by the device is compared to a pattern memorized by the user.
13 Citations
32 Claims
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1-16. -16. (canceled)
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17. A method for authenticating a device comprising a processor and a smart card, the method comprising the steps of:
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unlocking the smart card using a PIN code by a user; transmitting a secret key Kc of the smart card and the PIN code of the smart card to the processor; performing a cryptographic calculation by the processor using a secret key Kp of the processor, the PIN code, and the secret key Kc; generating a pattern from the cryptographic calculation by the processor; transmitting the pattern to the user; and comparing the pattern generated by the device and a memorized pattern by the user. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification