00690nam a2200217Ia 4500003000400000005001700004008004100021020001800062040001800080041000800098082002000106100002500126245006400151250003600215260006700251300001600318650003300334650003800367650003200405650003500437OSt20220621134603.0210716s2007 xx 000 0 und d a9780070660465 cAIMIT LIBRARY aeng a005.8221bFORB aForouzan, Behrouz A. aCryptography and network security /cBy Behrouz A. Forouzan a1st ed.bSpecial Indian Edition aNew Delhi :bTata McGraw Hill Publishing Company Ltd. ,c2009. axxvi, 721p. aCryptography-Data encryption aTraditional Symmetric-key Ciphers aMathematics of Cryptography aAdvanced Encryptions Standard