@misc{cryptoeprint:2008:187,
    author = {Fagen Li and Yong Yu},
    title = {An Efficient and Provably Secure ID-Based Threshold Signcryption Scheme},
    howpublished = {Cryptology ePrint Archive, Report 2008/187},
    year = {2008},
    url = {http://eprint.iacr.org/2008/187},
}