000			00398nam a2200145Ia 4500
008			130318s9999 xx 000 0 und d
020			_a9788177587746
082			_a005.82 STA/C
100			_aStallings, William
245			_aCryptography and network security: Principles and practices
250			_a4
260			_bPearson Education _aNew Delhi _c2006
300			_a680
650			_aNETWORK SECURITY
999			_c1830 _d1830