A note on ``authenticated key agreement protocols for dew-assisted IoT systems''

ePrint Report: A note on ``authenticated key agreement protocols for dew-assisted IoT systems''

Zhengjun Cao, Lihua Liu

We show that the key agreement scheme [J. Supercomput., 78:12093-12113, 2022] is flawed. (1) It neglects the representation of a point over an elliptic curve and the basic requirement for bit-wise XOR, which results in a trivial equality. By the equality, an adversary can recover a target device's identity, which means the scheme fails to keep anonymity. (2) It falsely requires that the …

basic curve elliptic eprint report iot key point protocols report representation systems the key xor