@misc{cryptoeprint:2011:293,
    author = {W. Han},
    title = {Weakness of a Secured Authentication Protocol for Wireless Sensor Networks Using Elliptic Curves Cryptography},
    howpublished = {Cryptology ePrint Archive, Report 2011/293},
    year = {2011},
    url = {http://eprint.iacr.org/2011/293},
}