Lihua Wang 0001, Zhenfu Cao, Eiji Okamoto, Ying Miao, Takeshi Okamoto. Transformation-free proxy cryptosystems and their applications to electronic commerce. In John R. White, Huanye Sheng, editors, Proceedings of the 3rd International Conference on Information Security, InfoSecu 2004, Shanghai, China, November 14-16, 2004. pages 92-98, ACM, 2004. [doi]
Abstract is missing.