Improved authenticated multiple-key agreement protocol

An Improved Authenticated Multiple-key Agreement Protocol

Improved Yen-Joye’s Authenticated Multiple-key Agreement Protocol∗

In this article, we propose an authenticated multiple-key agreement protocol. The protocol not only secure to against the unknown-key attack but also more efficient than the other protocols.

Cryptanalysis of the improved authenticated key agreement protocol

Hsu et al. recently pointed out that the Ku–Wang scheme is vulnerable to modification attack and further proposed an improvement on their scheme. However, this article will show the improvement which they claim is still vulnerable by off-line password guessing attack. 2005 Published by Elsevier Inc.

Chameleon-Based Deniable Authenticated Key Agreement Protocol

As a useful means of safeguarding privacy of communications, deniable authentication has received much attention. A Chameleon-based deniable authenticated key agreement protocol is presented in this paper. The protocol has following properties. Any one of the two participants can’t present a digital proof to convince a third party that a claimed agreement has really taken place. Once a forgery ...

A Robust Authenticated Key Agreement Protocol

In this paper, we propose a robust authenticated key agreement protocol in which two communication parties exchange a secret session key and authenticate each other. The protocol can be considered as an improvement of simple authenticated key agreement algorithm (SAKA). However, our protocol is more significant in that it addresses the problem of the off-line password guessing attack.