Fuchun Guo, Yi Mu, Zhide Chen. Mutative Identity-Based Signatures or Dynamic Credentials Without Random Oracles. In Feng Bao, San Ling, Tatsuaki Okamoto, Huaxiong Wang, Chaoping Xing, editors, Cryptology and Network Security, 6th International Conference, CANS 2007, Singapore, December 8-10, 2007, Proceedings. Volume 4856 of Lecture Notes in Computer Science, pages 1-14, Springer, 2007. [doi]