TY  - JOUR
T1  - Linkability of Convertible Undeniable Partially Blind Signature Scheme
AU - , Hong Lei AU - , Tianjie Cao 
JO  - Asian Journal of Information Technology
VL  - 5
IS  - 12
SP  - 1386
EP  - 1388
PY  - 2006
DA  - 2001/08/19
SN  - 1682-3915
DO  - ajit.2006.1386.1388
UR  - https://makhillpublications.co/view-article.php?doi=ajit.2006.1386.1388
KW  - Partially blind signature
KW  -linkability
KW  -convertible
KW  -undeniable
AB  - Blind signature allows a user to obtain signatures from an authority on any document, in such a way that the authority learns nothing about the message that is being signed. In partially blind signatures, the signer can explicitly include some agreed common information such as the expiration date and the face value in the blind signature. The blindness is an important property in blind signature scheme. In this work, we analyze security of Huang et al’s convertible undeniable partially blind signature scheme and show that the scheme doesn’t satisfy blindness, in other words, the signer is able to link a valid message-signature pair obtained by some user. It means that the blind signature scheme is not secure.
ER  -