AUTHENTICATION OF A TERMINAL BY AN ELECTROMAGNETIC TRANSPONDER
First Claim
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1. A method of authentication of a terminal generating a magnetic field by a transponder comprising an oscillating circuit from which a D.C. voltage is generated, wherein at least one quantity depending on the coupling between the transponder and the terminal is compared with at least one reference value.
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Abstract
A method of authentication of a terminal generating a magnetic field by a transponder including an oscillating circuit from which a D.C. voltage is generated, wherein at least one quantity depending on the coupling between the transponder and the terminal is compared with at least one reference value.
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Citations
9 Claims
- 1. A method of authentication of a terminal generating a magnetic field by a transponder comprising an oscillating circuit from which a D.C. voltage is generated, wherein at least one quantity depending on the coupling between the transponder and the terminal is compared with at least one reference value.
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