Security Flaws in a Recent Ultralightweight RFID Protocol

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In this paper, the authors present the cryptanalysis of Lee et al. protocol, which is one of the most recent RFID mutual authentication protocols in the area of ultralightweight cryptography. The scheme presents noteworthy weaknesses related to most of the security properties initially required in its protocol design. Furthermore, the protocol is an excellent example as how triangular and non-triangular functions have to be combined to design secure ultralightweight protocols, and also about their combined usage does not guarantee any security by itself.