Security on Aydos et al's elliptic curve cryptography based wireless authentication protocol

Recently, Aydos et al. proposed an ECC-based wireless authentication protocol. This protocol uses both the elliptic curve digital signature algorithm and the Diffie-Hellman key exchange scheme to provide mutual authentication and agree a session key for subsequent communication. Mangipudi et al show that the protocol is vulnerable to the man-in-the-middle attack from the attacker within the system. It is further shown in this paper that Aydos et al's protocol is vulnerable to man-in-the-middle attack from any attacker not restricted on the inside attacker. Finally, the reasons that Aydos et al' s protocol suffers the attacks and some other security weaknesses of Aydos et al's protocol are analyzed.