Cryptology ePrint Archive: BibTeX Citation of Report 2015/044

@misc{cryptoeprint:2015:044,
    author = {Binanda Sengupta and Abhijit Das},
    title = {Use of SIMD-Based Data Parallelism to Speed up Sieving in Integer-Factoring Algorithms},
    howpublished = {Cryptology ePrint Archive, Report 2015/044},
    year = {2015},
    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.