Title :
Cryanalysis on a Nonrepudiable Threshold Proxy Signature Scheme with Known Signers
Author :
Xiao, Hongguang ; Tan, Zuowen ; Jian, Wang
Author_Institution :
Xiangtan Univ., Xiangtan
Abstract :
In the paper, we analyze the security of C.-L. Hsu et al.´s threshold proxy signature scheme. The scheme suffers from universal forgery and does not hold nonrepudiation. An adversary can forge (t, n) threshold proxy signature on any message m. We propose an improvement to remedy the weakness of C.-L Hsu et al.´s scheme.
Keywords :
digital signatures; cryanalysis; nonrepudiable threshold proxy signature scheme; Computer science; Content addressable storage; Cryptography; Finance; Forgery; Mathematics; Parallel processing; Sun;
Conference_Titel :
Network and Parallel Computing Workshops, 2007. NPC Workshops. IFIP International Conference on
Conference_Location :
Liaoning
Print_ISBN :
978-0-7695-2943-1
DOI :
10.1109/NPC.2007.52
