000 00239nam a2200097Ia 4500
100 _aSTALLINGS, WILLIAM
245 _aCRYPTOGRAPHY AND NETWORK SECURITY: PRINCIPLES AND PRACTICES
250 _aVI
260 _bPEARSON
_c2006
942 _2ddc
_cSC
999 _c77701
_d77701