000 00270nam a2200109Ia 4500
008 170101s2017 xx 000 0 und d
100 _aWILLIAM STALLINGS
245 0 _aCRYPTOGRAPHY AND NETWORK SECURITY
260 _a280
_bPEARSON
650 _aCSE
942 _2ddc
_cBK
_03
999 _c154249
_d154249