000			00327 a2200133 4500
020			_a9814035890
082			_a004.056.55:004.7 STA
245			_aCryptography and network security:principles and practice
250			_a2/e
260			_bPrentice hall _c2000
300			_axvii, 569p
942			_cG
100			_aStallings, William
999			_c2501 _d2501