000 00374nam a22001457a 4500
003 OSt
020 _a978-93-325-8522-5
082 _a005.82
_bSTA-Q9
100 _aStallings, William
_91789
245 _aCryptography and network security
_b:Principles and practice
250 _aEd 7
260 _aNoida
_bPearson
_c2019
300 _a766
_bPaper Binding
942 _2ddc
_cBK
_019
999 _c16118
_d16118