| 摘要 |
The invention relates to a method of authenticating a radio tag by a radio reader, the tag possessing an identifier accessible to the reader via a database of tag identifiers, comprising: dispatching an authentication request by the reader to the tag, dispatching by the tag, a response, calculated by applying a first function to at least the identifier, a calculation by the tag and by the reader of a new identifier, by applying a second function to the identifier, comprising: if the response dispatched by the tag corresponds to a result obtained by applying said first function to an identifier of the base, a dispatching by the reader a first value, calculated by applying a third function to said identifier of the base.
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