000 00276nam a2200097Ia 4500
008 150310s9999 xx 000 0 und d
100 _aWILLIAM STALLINGS
245 _aCRYPTOGRAPHY NETWORK SECURITY: Principles and Practice
250 _a3
260 _c2003
_bPEARSON EDUCATION ASIA
999 _c29069
_d29069