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020 _a813170212X
_c575
040 _aMAIN
041 _aEnglish
082 _a005.8
_bMAO
100 _aMao, Wenbo
245 _aModern cryptography
260 _aNew Delhi
_bPearson
_c2006
300 _a719p.
650 _aCryptography
942 _cBK
999 _c34465
_d34465