Cryptology ePrint Archive: BibTeX Citation of Report 2007/146

@misc{cryptoeprint:2007:146,
    author = {Bessie C. Hu and Duncan S. Wong and Qiong Huang and Guomin Yang and Xiaotie Deng},
    title = {Time Capsule Signature: Efficient and Provably Secure Constructions},
    howpublished = {Cryptology ePrint Archive, Report 2007/146},
    year = {2007},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.