Georg Fuchsbauer, David Pointcheval. Proofs on Encrypted Values in Bilinear Groups and an Application to Anonymity of Signatures. In Hovav Shacham, Brent Waters, editors, Pairing-Based Cryptography - Pairing 2009, Third International Conference, Palo Alto, CA, USA, August 12-14, 2009, Proceedings. Volume 5671 of Lecture Notes in Computer Science, pages 132-149, Springer, 2009. [doi]