000 00534 a2200193 4500
020 _a8120325990`
082 _a004.62
_bGUP
090 _c17996
_d27875
100 _aGupta, Kailash N.
245 _aDigital signature
_bnetwork security practices
260 _aNew Delhi
_bPrentice-Hall
_c2005
_g2005
300 _ax,209p.
_c24cm
650 _aInterfacing and communications protocols
650 _aComputer science
650 _aData processing
700 _aAgarwala, Prateek A.
700 _aAgarwala, Kamlesh N.
942 _cSR
999 _c45898
_d45898