Jiguo Li 0001, Yichen Zhang 0003, Yuelong Zhu. Security analysis and improvement of some proxy signature schemes. 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 27-32, ACM, 2004. [doi]
Abstract is missing.