Title :
Improved Proxy Signature for Designated Verifier
Author :
Xinjing, Zhang ; Shoujia, Huang ; Xiangjun, Xin
Author_Institution :
Dept. of Math. & Inf. Sci., Zhengzhou Univ. of Light Ind., Zhengzhou, China
Abstract :
To overcome the disadvantages of designated-verifier signature schemes proposed by Dai and Wang, based on the Schnorr signature scheme, an improved designated-verifier signature scheme is proposed. The proposed scheme overcomes weakness of the schemes proposed by Dai and Wang. According to the security analysis, it is found that the new scheme is secure under the hardness assumption of discrete logarithm. On the other hand, the new scheme is more efficient than Wang´s scheme due to its fewer exchanges than Wang´s.
Keywords :
digital signatures; handwriting recognition; Schnorr signature scheme; Wang scheme; discrete logarithm; hardness assumption; proxy signature; security analysis; signature verification; Computer networks; Computers; Digital signatures; Handwriting recognition; Public key; discrete logarithm; proxy signature; security; signature;
Conference_Titel :
Network Computing and Information Security (NCIS), 2011 International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-61284-347-6
DOI :
10.1109/NCIS.2011.52
