Publication

Abstract : An authenticated mobile key exchange is necessary for post quantum secure communication over a public channel. It enables two parties to establish a secure fresh session key for each of the communication. In the last few years, many post quantum authentication key exchange protocols have been designed. This article contains a discussion how the Dabra et al. protocol is vulnerable to insider attack. There is an error in the password change phase, and it suffers from signal leakage attack. The protocol has incorrect login phase or they uses incorrect values during reconciliation. We have discussed the signal leakage attack in detail, and how the protocol vulnerable to this attack. The proposed protocol achieves both security and efficiency against quantum attacks.