000			00350nam a2200133Ia 4500
008			150331s2011 xx 000 0 und d
020			_a9788190691970
100			_aGupta,S.
245			_aIntroduction to Cryptography and Network Security
250			_a2 nd
260			_aNew Delhi _bS.K.Kataria and Sons _c2011
300			_a209
942			_2ddc _cBK _011
999			_c1435 _d1435