Knudsen, Lars, 1962- The block cipher companion / Lars R. Knudsen, Matthew J. B. Robshaw. - Heidelberg : Springer, c2011. - xiv, 267 p. : ill. ; 24 cm. - Information security and cryptography . Includes bibliographical references and index. ISBN: 9783642173417 (hbk.) 3642173411 (hbk.) Subjects--Topical Terms: Data encryption (Computer science)Ciphers. Dewey Class. No.: 005.82 / KNU 2011