Universal Designated-Verifier Proxy Blind Signatures for E-Commerce.

Tianjie Cao Dongdai Lin Rui Xue Universal Designated-Verifier Proxy Blind Signatures for E-Commerce. 1036-1041 2005 conf/cis/2005-2 CIS (2) http://dx.doi.org/10.1007/11596981_154 db/conf/cis/cis2005-2.html#CaoLX05