Stallings, William. Cryptography and network security : principles and practice / William Stallings. - 5th ed. - Boston : Prentice Hall, c2011. - xxiii, 719 p. : ill. ; 24 cm Includes bibliographical references (p. 699-710) and index. ISBN: 9780136097044 9780137056323 Subjects--Topical Terms: Computer networks-- Security measures.Data encryption (Computer science)Coding theory.Computer security. Dewey Class. No.: 005.8