Radio frequency identification (RFID) safety communication method established according to ultra-lightweight RFID bidirectional authentication protocol
A two-way authentication and ultra-lightweight technology, applied in the field of communication, can solve the problems of security vulnerabilities and RFID failures, and achieve the effects of low communication costs, simple calculations, and low storage costs
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[0023] The RFID secure communication method that the ultra-lightweight RFID two-way authentication protocol that the embodiment of the present invention provides provides the following two processes:
[0024] The initialization process:
[0025] At the beginning of the RFID system, each tag is assigned a unique 1-bit security identity code SID by the server or the manufacturer or completed t and a secret value S of length l-bit t , the server sends the security identity code SID t And the relevant information of the item with the tag is stored in the tag. When the item is logged in, the server will send the information related to the tag: the security identity code SID of each tag i , the current secret value S inew And the secret value S of the last successful authentication iold stored in the backend database. Authentication process:
[0026]1) Reader→Tag: The reader first generates a random number R r , will (Query, R r ) to the label.
[0027] 2) Tag→Reader→Server...
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