An Extensible RFID Two-way Authentication Method
A two-way authentication and algorithm technology, applied in the field of RFID two-way authentication, can solve the problems of inability to prevent denial of service attacks, protocol retransmission and counterfeiting attacks, and easy access by eavesdroppers, so as to reduce query overhead, ensure confidentiality, and avoid security. hidden effect
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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0025] First give the meaning of each symbol involved in the method described in this embodiment:
[0026] R: reader;
[0027] T: label;
[0028] DB: background database;
[0029] UID: an identifier shared by all tags and readers;
[0030] ID: tag unique identifier;
[0031] K new : the shared key of this round;
[0032] The even number of bits of the current round shared key;
[0033] K old : the shared key of the last round;
[0034] The even-numbered bits of the shared key in the previous round;
[0035] L: the length of the key;
[0036] N: selected Mersenne number, N=2 L -1;
[0037] r: random number generated by the reader;
[0038] XOR operation;
[0039] [] L : Take the first L bits of the operation result
[0040] Cro(X,Y): Cross bit operation, specifically, s...
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