000 00419nam a2200157Ia 4500
008 210825s9999 xx 000 0 und d
020 _a9789332585225
100 _aWilliam Stallings
245 0 _aCryptography and Network Security,Ed7
250 _a7
260 _aNew Delhi
_bPearson
_c2017
536 _aManagement
650 _aCryptography and Network Security,Ed7
650 _aWilliam Stallings
942 _cBK
999 _c91280
_d91278