@misc{cryptoeprint:2006:407,
    author = {Jens Groth and Rafail Ostrovsky},
    title = {Cryptography in the Multi-string Model},
    howpublished = {Cryptology ePrint Archive, Report 2006/407},
    year = {2006},
    url = {http://eprint.iacr.org/2006/407},
}