000 00259nam a2200109Ia 4500
100 _aSTALLINGS, WILLIAM
245 _aCRYPTOGRAPHY AND NETWORK SECURITY: PRINCIPLES AND PRACTICES
250 _aIV
260 _bPEARSON
_c2006
300 _a680
942 _2ddc
_cSC
999 _c77700
_d77700