The invention provides an RFID tag array
authentication method based on
phase correlation, and the method comprises a model training stage and an array
authentication stage, the model training stage comprises the steps: collecting and
processing a phase sequence received from a conventional tag array, and selecting an optimal tag combination of each tag in the conventional tag array; calculating a conventional
phase difference sequence according to the optimal tag combination, and constructing a
phase difference sequence of the attacked tag array according to a replacement mechanism; a neural network is designed, a conventional
phase difference sequence and a phase difference sequence of an attacked tag array are used as input of the neural network for training, and an array
authentication stage: a phase sequence of a to-be-authenticated tag array is collected and processed, a to-be-authenticated phase difference sequence is calculated according to the optimal tag combination and input into the neural network, and an authentication result is obtained. According to the method, clone
attack,
analog signal attack and deployment tampering
attack can be defended, the authentication precision is high, the deployment cost is low, and the security of sensing based on the tag array is improved.