| 摘要 |
The invention relates to a method of mutual authentication between a radio tag (T) and a radio reader (R), comprising : - a phase of authentication (P21) of the tag by the reader, implemented on a first communication channel (UHF), during which a first authentication coupon (x T ) and a first authentication response (y T ) are transmitted (E21-1, E21-7) from the tag to the reader, - a step (E21-11) of toggling from the first communication channel to a second communication channel (HF), different from the first channel, on which there is implemented a phase of authentication of the reader by the tag, - a despatching (E21-4, E22-2) from the reader to the tag of a second authentication coupon (x R ) and of a second authentication response (y R ) which are intended to authenticate the reader, characterized in that the second authentication coupon is transmitted on the first communication channel. |
