000			00420nam a2200145Ia 4500
008			241227s9999 xx 000 0 und d
020			_a9788177587746
082			_a005.82 _bSTA
100			_aStallings, William.
245		0	_aCryptography and network security: principles and practices
260			_aDelhi : _bPearson Education, _c2000
300			_a680.
365			_a0
650			_aComputer programmingprograms data
999			_c153657 _d153657