Brief description of the authentication of a device comprising a processor and a chip card by the generation of a pattern

摘要

The present invention relates to a method of authenticating a device comprising a processor and a chip card, characterized in that it comprises the following steps: unlocking by a user of said chip card using a pin code; the transmission of a secret key kc of said chip card, and the pin code of said chip card to the processor; cryptographic calculation at the level of the said processor implementing a secret key kp of the processor, the pin code, and c; the generation by the processor of a pattern can be read by a human being, on the basis of said cryptographic calculation; the transmission of the motif to the user, and comparison by the user of said pattern generated by the device with a pattern stored by the user.