@book{60460,
	author = {Delfs, Hans and Knebl, Helmut},
	title = {Introduction to cryptography :},
	publisher = {Springer-Verlag,},
	year = {c2007},
	series = {Information security and cryptography : texts and monographs,},
	address = {Berlin, Heidelberg :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/fy0803/2007921676.html}
}