00390nam a2200145Ia 4500003000400000008004100004020002600045040000800071100002500079245005900104250001200163260004300175300001500218365001100233LDD181029s9999    xx            000 0 und d  a9780070702080c415.00  cLDD  aForouzan, Behrouz A. 0aCryptography and network securitycBehrouz A. Forouzan  a2nd ed.  aNew DelhibTata McGrraw Hill Education  axxiv, 702p  b415.00