@misc{cryptoeprint:2009:202,
author = {Alawi A. Al-Saggaf and Acharya H. S.},
title = {A GENERALIZED FRAMEWORK FOR CRISP COMMITMENT SCHEMES},
howpublished = {Cryptology ePrint Archive, Report 2009/202},
year = {2009},
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.