000			00504 a2200181 4500
005			20150904110624.0
008			150904b xxu||||| |||| 00| 0 eng d
020			_a9788120350458
080			_a004.056.55 _bGUP
100			_aGupta, Prakash C
245			_aCryptography and network security
260			_bPHI learning private limited _aDelhi _c2015
300			_axx, 456 p.
653			_aComputer networks - Security measures
653			_aComputer security
653			_aCryptography
942			_cBK
999			_c82013 _d82012