@misc{cryptoeprint:2004:037, author = {Fuw-Yi Yang and Jinn-Ke Jan}, title = {A Provably Secure Scheme for Restrictive Partially Blind Signatures}, howpublished = {Cryptology ePrint Archive, Report 2004/037}, year = {2004}, url = {http://eprint.iacr.org/2004/037}, }