@misc{cryptoeprint:2004:351, author = {ZhenFeng ZHANG and YongBin ZHOU and DengGuo FENG}, title = {Efficient and Optimistic Fair Exchanges Based on Standard RSA with Provable Security}, howpublished = {Cryptology ePrint Archive, Report 2004/351}, year = {2004}, url = {http://eprint.iacr.org/2004/351}, }