Title :
Cryptanalysis of Liao et al.´s Blind Signature Scheme from CIS´05
Author :
Liao, Yongjian ; Wang, Qihang
Author_Institution :
Univ. of Electron. Sci. & Technol., Chengdu
Abstract :
Liao et al. proposed first blind signature schemes without random oracles from pairings and provided security proofs in CIS´05. However, we show that their blind scheme is neither blind, nor unforgeable, anyone not to query the signing oracle can forge signature of any message.
Keywords :
cryptography; digital signatures; blind signature; cryptanalysis; random oracles; security proof; signature forgery; Additives; Blindness; Computational intelligence; Computer science; Computer security; Educational institutions; Electronic voting; Information security; Protocols; Public key;
Conference_Titel :
Computational Intelligence and Security Workshops, 2007. CISW 2007. International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-0-7695-3073-4
DOI :
10.1109/CISW.2007.4425611
