Cryptanalysis of the SASI Ultralightweight RFID Authentication Protocol with Modular Rotations

@article{Castro2008CryptanalysisOT,
  title={Cryptanalysis of the SASI Ultralightweight RFID Authentication Protocol with Modular Rotations},
  author={Julio C{\'e}sar Hern{\'a}ndez Castro and Juan E. Tapiador and Pedro Peris-Lopez and Jean-Jacques Quisquater},
  journal={CoRR},
  year={2008},
  volume={abs/0811.4257}
}
In this work we present the first passive attack over the SASI lightweight authentication protocol with modular rotations. This can be used to fully recover the secret ID of the RFID tag, which is the value the protocol is designed to conceal. The attack is described initially for recovering blog2(96)c = 6 bits of the secret value ID, a result that by itself allows to mount traceability attacks on any given tag. However, the proposed scheme can be extended to obtain any amount of bits of the… CONTINUE READING
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