000			00411nam a2200145Ia 4500
008			220217s9999||||xx |||||||||||||| ||und||
020			_a9789332585225
082			_a004.6 STA
100			_aStallings, William
245		0	_aCryptography and network security: principles and practice
250			_a7th
260			_aPrentice hall _bNew Delhi _c2020
300			_a766P. _b749
650			_aCOMPUTER NETWORK
999			_c189391 _d189391