000 00281nam a22001217a 4500
020 _a9789389347104
100 _aV K Pachghare
245 _aCryptography and information security
250 _a3
260 _aDelhi
_bPHI Learning Pvt.Ltd
_c2019
300 _axix+500
942 _cBB
999 _c59929
_d59929