000 00327nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a005.82
100 _aWilliam Stallings
245 0 _aCryptography and Network Security : Principles and Practice 7th Ed.
250 _a7
260 _bPearson, New Delhi
_c2018
942 _cBK
999 _c35770
_d35770