000			00324nam a2200133Ia 4500
008			220613s9999||||xx |||||||||||||| ||und||
100			_aStallings,W.
245		0	_aCryptography and Network Security.
250			_a5th,(2011).
260			_bPearson Education New Delhi.
300			_a743
650			_aC.S.E.
942			_cENG
999			_c12917 _d12917