000 00305nam a2200109Ia 4500
008 230222s9999 xx 000 0 und d
100 _aWilliam Stallings
245 0 _aCryptography and Network Security : Principles and Practice
250 _a6
260 _bPearson Education,New Delhi
_c2014
942 _cBK
999 _c30974
_d30974