@misc{cryptoeprint:2010:058,
author = {Jos\'e de Jes\'us Angel Angel and Guillermo Morales-Luna},
title = {Solinas primes of small weight for fixed sizes},
howpublished = {Cryptology ePrint Archive, Report 2010/058},
year = {2010},
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.