@misc{cryptoeprint:2011:472,
    author = {Joseph K. Liu and Tsz Hon Yuen and Jianying Zhou},
    title = {Forward Secure Ring Signature without Random Oracles},
    howpublished = {Cryptology ePrint Archive, Report 2011/472},
    year = {2011},
    url = {http://eprint.iacr.org/2011/472},
}