@book{1224,
	author = {Elbirt, Adam J.},
	title = {Understanding and applying cryptography and data security /},
	publisher = {CRC Press,},
	year = {2009.},
	address = {Boca Raton, Fl. :},
	url = {http://www.loc.gov/catdir/toc/ecip0821/2008028154.html}
}