CryptoDB
Cryptanalysis of Park-Lee Nominative Proxy Signature Scheme
Authors: | |
---|---|
Download: | |
Abstract: | Park and Lee have proposed a digital nominative proxy signature scheme for mobile communication in [1]. They claimed that neither Origin signer nor Proxy agent can generate a valid signature solely. In this paper we show that Origin signer can generate a valid signature without the cooperation of the agent. In fact, the flaw comes from that Verifier dose not use the public key of Proxy agent in verifying phase. It's a serious designing error. |
BibTeX
@misc{eprint-2004-12246, title={Cryptanalysis of Park-Lee Nominative Proxy Signature Scheme}, booktitle={IACR Eprint archive}, keywords={cryptographic protocols /}, url={http://eprint.iacr.org/2004/280}, note={ zjcamss@hotmail.com 12720 received 28 Oct 2004}, author={Zhengjun Cao}, year=2004 }