@misc{cryptoeprint:2006:297,
    author = {Xavier Boyen and Hovav Shacham and Emily Shen and Brent Waters},
    title = {Forward-Secure Signatures with Untrusted Update},
    howpublished = {Cryptology ePrint Archive, Report 2006/297},
    year = {2006},
    url = {http://eprint.iacr.org/2006/297},
}