Zulfikar Ramzan, David P. Woodruff. Fast Algorithms for the Free Riders Problem in Broadcast Encryption. In Cynthia Dwork, editor, Advances in Cryptology - CRYPTO 2006, 26th Annual International Cryptology Conference, Santa Barbara, California, USA, August 20-24, 2006, Proceedings. Volume 4117 of Lecture Notes in Computer Science, pages 308-325, Springer, 2006. [doi]
Abstract is missing.