@misc{cryptoeprint:2006:393, author = {Sujing Zhou, Dongdai Lin}, title = {The Identity Escrow (Group Signature) Scheme at CT-RSA'05 Is Not Non-frameable}, howpublished = {Cryptology ePrint Archive, Report 2006/393}, year = {2006}, url = {http://eprint.iacr.org/2006/393}, }