Marc Joye, Seungjoo Kim, Narn-Yih Lee. Cryptanalysis of Two Group Signature Schemes. In Masahiro Mambo, Yuliang Zheng, editors, Information Security, Second International Workshop, ISW 99, Kuala Lumpur, Malaysia, November 1999, Proceedings. Volume 1729 of Lecture Notes in Computer Science, pages 271-275, Springer, 1999. [doi]
Abstract is missing.