Akihiro Yamamura. Public-Key Cryptosystems Using the Modular Group. In Hideki Imai, Yuliang Zheng, editors, Public Key Cryptography, First International Workshop on Practice and Theory in Public Key Cryptography, PKC 98, Pacifico Yokohama, Japan, February 5-6, 1998, Proceedings. Volume 1431 of Lecture Notes in Computer Science, pages 203-216, Springer, 1998.
Abstract is missing.