000 00319 a2200145 4500
020 _a812970692X
082 _a005.82
_bMAO
090 _c3122
_d3846
100 _aMao, Wenbo
245 _aModern cryptography
260 _aDelhi
_bPearson
_c2004
_g2004
300 _a719p.
_c24cm
650 _aData security
942 _cL
999 _c32148
_d32148