@misc{cryptoeprint:2002:018,
    author = {Jae Choon Cha and Jung Hee Cheon},
    title = {An Identity-Based Signature from Gap Diffie-Hellman Groups},
    howpublished = {Cryptology ePrint Archive, Report 2002/018},
    year = {2002},
    url = {http://eprint.iacr.org/2002/018},
}