METHOD OF MUTUAL AUTHENTICATION BETWEEN A RADIO TAG AND A READER

摘要

A method of mutual authentication between a radio tag and a radio reader. The method includes: authentication of the tag by the reader, implemented on a first communication channel, during which a first authentication coupon and a first authentication response are transmitted from the tag to the reader; toggling from the first communication channel to a second communication channel, different from the first channel, on which there is implemented a phase of authentication of the reader by the tag; and dispatching from the reader to the tag of a second authentication coupon and of a second authentication response which are intended to authenticate the reader. The second authentication coupon is transmitted on the first communication channel.

主权项

1. A method of mutual authentication between a radio tag and a radio reader, comprising the following acts, implemented by the radio tag:
dispatching to the radio reader a first authentication coupon, receiving, from the reader, a second authentication coupon, said second coupon being received after the dispatching of the first authentication coupon, dispatching a first authentication response the first authentication response being computed on the basis of a first challenge, computed on the basis of the second authentication coupon, receiving, from the reader, a second authentication response, the second authentication response being computed by the reader on the basis of a second challenge, computed on the basis of the first authentication response.