18th International Conference on Advanced Information Networking and Applications (AINA'04) Volume 2
An Improved Nominative Proxy Signature Scheme for Mobile Communication
Fukuoka, Japan
March 29-March 31
ISBN: 0-7695-2051-0
Recently, Seung-Hyun et al proposed a nominative proxy signature scheme for mobile communication. However, we show that the scheme hasn't non-repudiation, note that a malicious original signer can forge the proxy signer to sign on any message. Finally, we also present a modification of the scheme to repair the security flaw.
Citation:
Jianhong Zhang, Qianhong Wu, Jilin Wang, Yumin Wang, "An Improved Nominative Proxy Signature Scheme for Mobile Communication," aina, vol. 2, pp.23, 18th International Conference on Advanced Information Networking and Applications (AINA'04) Volume 2, 2004