TY  - JOUR
T1  - Zhang <I>et al.</I>`s Partially Blind Signature Revisited
AU - , Wei Gao AU - , Xueli Wang AU - , Dongqing Xie 
JO  - Asian Journal of Information Technology
VL  - 5
IS  - 3
SP  - 310
EP  - 311
PY  - 2006
DA  - 2001/08/19
SN  - 1682-3915
DO  - ajit.2006.310.311
UR  - https://makhillpublications.co/view-article.php?doi=ajit.2006.310.311
KW  - Zhang et al.
KW  -partially blind signature
AB  - Partially blind signature is an important cryptographic primitive in privacy oriented e-commerce applications. In INDOCRYPT 2003, Zhang <I>et al</I>. proposed a new partially blind signature scheme more efficient than previous schemes. It was later showed linkable by Chow <I>et al</I>. and then respectively improved by both Chow <I>et al</I>. and Zhang <I>et al</I>. at the cost of poorer efficiency. However, in this short study we show that the cryptanalysis of Chow <I>et al</I>. is wrong. So the original partially blind signature scheme remains secure and the corresponding  improvements are needless.
ER  -