@misc{cryptoeprint:2009:568,
    author = {Qingfeng Cheng and Chuangui Ma},
    title = {Ephemeral key compromise attack on the IB-KA protocol},
    howpublished = {Cryptology ePrint Archive, Report 2009/568},
    year = {2009},
    url = {http://eprint.iacr.org/2009/568},
}