000			00458nam a2200169Ia 4500
003			OSt
008			181001s2018 xx 000 0 und d
020			_a9788177587746
082			_a005.82 _bSTA
100			_aStallings, William
245		0	_aCryptography and network security: _bPrinciples and practices
250			_a4th
260			_bPearson Education, _aNew Delhi: _c©2009
300			_a680p.
650			_aComputer Science Engineering
942			_2ddc _cBK
999			_c5401 _d5401