Stallings, William. Cryptography and network security : principles and practice / William Stallings. - 5th ed. - Boston, MA : Prentice Hall, c2011. - xxiii, 719 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 9780136097044 (hbk.) 0136097049 (hbk.) 9780137056323 (pbk. : int. ed.) 013705632X (pbk. : int. ed.) Subjects--Topical Terms: Computer networks--Security measures.Data encryption (Computer science)Coding theory.Computer security. Dewey Class. No.: 005.8 / STA 2011