00395nam a2200145 a 450000500170000002000180001708200160003510000230005124500380007425000120011226000540012430000260017850000200020470000250022420251203111653.0  a9780070702080  a005.82bFOR  aForouzan,Behrouz.A  aCryptography and network security  a2nd ed.  aNew DelhibTata McGraw Hill Educationc2008-R2010  axxiv,702p.c24cm.bPB  aincluding index  aMukhopadhyay,Debdeep