Network Security- Arvind Kumar Sharma

8/13/2019 Network Security- Arvind Kumar Sharma

1/104

Tgutlr Dbslj

Fltwgr` Yliurnty

BTQNFJ @\CBT YMBTCB(INYIG Ilrtnanlj Bibjlcy Nfstruitgr)IIFB,IIF_,IIFB Yliurnty Nfstruitgr

INYIG Tlkngfbh BibjlcyIlftrl agr lhlitrgfni Kgvlrfbfil, Ebnpur


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Cgjlrf Fltwgr` Yliurnty Zmrlbts


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[mbt ns Fltwgr` Yliurnty

Fltwgr` sliurnty ns tml prgtlitngf ga nfagrcbtngf bfjsystlcs bfj mbrjwbrl tmbt usl, stgrl, bfj trbfscnt tmbt

nfagrcbtngf.

Fbtngfbh Yliurnty Zlhligccufnibtngfs bfj NfagrcbtngfYystlcs Yliurnty Igccnttll (FYZNYYI)

Fltwgr` sliurnty lfigcpbssls tmgsl stlps tmbt brl tb`lftg lfsurl tml igfanjlftnbhnty, nftlkrnty, bfj bvbnhbdnhnty gajbtb gr rlsgurils.


4/104

Tbtngfbhl agr Fltwgr` Yliurnty

Fltwgr` sliurnty nfntnbtnvls bfj fltwgr` sliurntysplinbhnsts ibf dl agufj nf prnvbtl bfj pudhni, hbrkl bfjscbhh igcpbfnls bfj grkbfnzbtngfs. Zml fllj agr fltwgr`sliurnty bfj nts krgwtm brl jrnvlf dy cbfy abitgrs5

2. Nftlrflt igfflitnvnty ns 4:/; bfj ns wgrhjwnjl

4. Nfirlbsl nf iydlr irncl

9. Ncpbit gf dusnflss bfj nfjnvnjubhs

:. Hlknshbtngf & hnbdnhntnls


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Kgbhs ga bf NfagrcbtngfYliurnty _rgkrbc

Igfanjlftnbhnty

_rlvlft tml jnsihgsurl ga slfsntnvl nfagrcbtngf argc ufbutmgrnzljplgphl, rlsgurils, bfj prgilssls

Nftlkrnty Zml prgtlitngf ga systlc nfagrcbtngf gr prgilssls argc

nftlftngfbh gr biinjlftbh cgjnanibtngf

Bvbnhbdnhnty

Zml bssurbfil tmbt systlcs bfj jbtb brlbiilssndhl dy butmgrnzlj uslrs wmlf flljlj


6/104

Tns` Cbfbklclft

Tns` Bfbhysns

Zmrlbts

Quhflrbdnhntnls


7/104

Tns` Cbfbklclft

Igftrgh pmysnibh biilss _bsswgrj prgtlitngf

Jlvlhgp b Yliurnty _ghniy

Zml prgilss ga bsslssnfk bfj qubftnaynfk rns` bfj lstbdhnsmnfk bfbiilptbdhl hlvlh ga rns` agr tml grkbfnzbtngf

Tns` ibf dl cntnkbtlj, dut ibffgt dl lhncnfbtlj


8/104

Zypls ga Bttbi`s

Ytruiturlj bt tbi`

Igcl argc mbi`lrs wmg brl cgrl mnkmhy cgtnvbtlj bfj tlimfnibhhyigcpltlft. Zmlsl plgphl `fgw systlc vuhflrbdnhntnls bfj ibfufjlrstbfj bfj jlvlhgp lxphgnt igjl bfj sirnpts. Zmly ufjlrstbfj,

jlvlhgp, bfj usl sgpmnstnibtlj mbi`nfk tlimfnquls tg plfltrbtlufsusplitnfk dusnflssls. Zmlsl krgups brl gatlf nfvghvlj wntm tmlcbegr arbuj bfj tmlat ibsls rlpgrtlj tg hbw lfagrilclft bklfinls.

\fstrui turlj bt tbi`

Igfsnsts ga cgsthy nflxplrnlfilj nfjnvnjubhs usnfk lbsnhy bvbnhbdhlmbi`nfk tgghs suim bs smlhh sirnpts bfj pbsswgrj irbi`lrs. Lvlfufstruiturlj tmrlbts tmbt brl gfhy lxliutlj wntm tml nftlft ga tlstnfkbfj imbhhlfknfk b mbi`lrs s`nhhs ibf stnhh jg slrngus jbcbkl tg b

igcpbfy.


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Zypls ga Bttbi`s

Lxtlrfbh bttbi`s

Nfntnbtlj dy nfjnvnjubhs gr krgups wgr`nfk gutsnjl ga b igcpbfy.Zmly jg fgt mbvl butmgrnzlj biilss tg tml igcputlr systlcs grfltwgr`. Zmly kbtmlr nfagrcbtngf nf grjlr tg wgr` tmlnr wby nftg b

fltwgr` cbnfhy argc tml Nftlrflt gr jnbhup biilss slrvlrs.

Nftlrfbh bttbi`s

Cgrl igccgf bfj jbfklrgus. Nftlrfbh bttbi`s brl nfntnbtlj dysgclgfl wmg mbs butmgrnzlj biilss tg tml fltwgr`. Biigrjnfk tgtml ADN, nftlrfbh biilss bfj cnsusl biiguft agr 1? tg =? plrilft garlpgrtlj nfinjlfts. Zmlsl bttbi`s gatlf brl trbilj tg jnskrufthljlcphgylls.


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Yliurnfk Fltwgr` Jlvnils


11/104

Brlbs ga Tgutlr Yliurnty

_mysnibh Yliurnty _hbil rgutlr nf b sliurlj, hgi`lj rggc Nfstbhh bf ufnftlrruptndhl pgwlr supphy

Gplrbtnfk Yystlc Yliurnty \sl tml hbtlst stbdhl vlrsngf tmbt cllts fltwgr` rlqunrlclfts @llp b igpy ga tml G/Y bfj igfankurbtngf anhl bs b dbi`up

Tgutlr Mbrjlfnfk Yliurl bjcnfnstrbtnvl igftrgh Jnsbdhl ufuslj pgrts bfj nftlrabils Jnsbdhl ufflilssbry slrvnils


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13/104

Biilss _grt _bsswgrjs

T2

T2(igfank)# lfbdhl slirlt insig

T2(igfank)# hnfl igf ?

T2(igfank-hnfl)# pbsswgrj insig

T2(igfank-hnfl)# hgknf

T2(igfank)# hnfl bux ?



T2(igfank)# hnfl vty ? :



Igccbfj tg rlstrnit biilss tgprnvnhlklj L]LI cgjl

Igccbfjs tg lstbdhnsm bhgknf pbsswgrj gf tmligfsghl hnfl

Igccbfjs tg lstbdhnsm b hgknfpbsswgrj gf nfigcnfk Zlhflt slssngfs

Igccbfjs tg lstbdhnsm bhgknf pbsswgrj agr jnbh-upcgjlc igfflitngfs


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Igfankurnfk tml Tgutlr agr YYM

T2# igfa tT2(igfank)# np jgcbnf-fbcl spbf.igc

T2(igfank)# iryptg `ly klflrbtl rsb klflrbh-`lys

cgjuhus 2?4:

Zml fbcl agr tml `lys wnhh dl5 T2.spbf.igc

% Zml `ly cgjuhus snzl ns 2?4: dnts% Klflrbtnfk 2?4: dnt TYB `lys, `lys wnhh dl fgf-

lxpgrtbdhl...PG@S

T2(igfank)#

*Jli 29 2152>524.?;>5 %YYM-> mbs

dllf lfbdhlj

T2(igfank)# uslrfbcl Dgd slirlt insigT2(igfank)# hnfl vty ? :

T2(igfank-hnfl)# hgknf hgibh

T2(igfank-hnfl)# trbfspgrt nfput ssm

T2(igfank-hnfl)# lxnt

2.Igfankurl tml N_ jgcbnffbcl ga tml fltwgr`

4.Klflrbtl gfl wbyslirlt `ly

9.Qlrnay gr irlbtl b hgibhjbtbdbsl lftry

:.Lfbdhl QZ^ nfdgufjYYM slssngfs


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Igfank BBB, Ymgw,Anrlwbhh, NJY/N_Y,FltAhgw

Igfankurnfk agr _rnvnhlkl Hlvlhs

Dy jlabuht5 \slr L]LI cgjl (prnvnhlkl hlvlh 2) _rnvnhlklj L]LI cgjl (prnvnhlkl hlvlh 2


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IHN Igccbfjs

rgutlr(igfank)#

sliurl dggt-ncbkl

Lfbdhls NGY ncbkl rlsnhnlfil

sliurl dggt-igfank

rgutlr(igfank)#

Zb`ls b sfbpsmgt ga tml rgutlr ruffnfk igfankurbtngf bfj sliurlhy

brimnvls nt nf plrsnstlft stgrbkl


17/104

_rnvnhlkl Hlvlhs agr \slrs

B \YLT biiguft wntm fgrcbh, Hlvlh 2 biilss.

B Y\__GTZ biiguft wntm Hlvlh 2 bfj pnfk igccbfj biilss.

B ET-BJCNF biiguft wntm tml sbcl prnvnhlkls bs tml Y\__GTZbiiguft phus biilss tg tml rlhgbj igccbfj.

Bf BJCNF biiguft wmnim mbs bhh ga tml rlkuhbr prnvnhlklj L]LIigccbfjs.

T2# igfa t

T2(igfank)# uslrfbcl \YLT prnvnhlkl 2 slirlt insigT2(igfank)#

T2(igfank)# prnvnhlkl lxli hlvlh < pnfk

T2(igfank)# lfbdhl slirlt hlvlh < insig} {plrcnt | jlfy}sguril-bjjrPsguril-cbs`S


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Lxtlfjlj Fucdlrlj N_ BIHs

Zml anrst vbhul splinanls tml BIH fucdlr

Zml sligfj vbhul splinanls wmltmlr tg plrcnt gr jlfy biigrjnfkhy

Zml tmnrj vbhul nfjnibtls prgtgigh typl

Zml sguril N_ bjjrlss bfj wnhjibrj cbs` jltlrcnfl wmlrl trbaanigrnknfbtls. Zml jlstnfbtngf N_ bjjrlss bfj wnhjibrj cbs` brl uslj

tg nfjnibtl tml anfbh jlstnfbtngf ga tml fltwgr` trbaani Zml igccbfj tg bpphy tml stbfjbrj gr lxtlfjlj fucdlrlj BIH5

Tgutlr(igfank)# biilss-hnst {2??-2>>} {plrcnt | jlfy}prgtgigh sguril-bjjrPsguril-cbs`S Pgplrbtgr gplrbfjSjlstnfbtngf-bjjrPjlstnfbtngf-cbs`S Pgplrbtgr gplrbfjSPlstbdhnsmljS

Tgutlr(igfank-na)# np biilss-krgup fucdlr {nf | gut}


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Lxtlfjlj Fucdlrlj N_ BIHs

Zml anrst vbhul splinanls tml BIH fucdlr

Zml sligfj vbhul splinanls wmltmlr tg plrcnt gr jlfy biigrjnfkhy

Zml tmnrj vbhul nfjnibtls prgtgigh typl

Zml sguril N_ bjjrlss bfj wnhjibrj cbs` jltlrcnfl wmlrl trbaanigrnknfbtls. Zml jlstnfbtngf N_ bjjrlss bfj wnhjibrj cbs` brl uslj

tg nfjnibtl tml anfbh jlstnfbtngf ga tml fltwgr` trbaani Zml igccbfj tg bpphy tml stbfjbrj gr lxtlfjlj fucdlrlj BIH5

Tgutlr(igfank)# biilss-hnst {2??-2>>} {plrcnt | jlfy}prgtgigh sguril-bjjrPsguril-cbs`S Pgplrbtgr gplrbfjSjlstnfbtngf-bjjrPjlstnfbtngf-cbs`S Pgplrbtgr gplrbfjSPlstbdhnsmljS

Tgutlr(igfank-na)# np biilss-krgup fucdlr {nf | gut}


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Fbclj N_ BIHsTgutlr(igfank)# np biilss-hnst lxtlfjlj vbimgf2Tgutlr(igfank-lxt-fbih)# jlfy np bfy 4??.2.4.2??.?.?.2

Tgutlr(igfank-lxt-fbih)# plrcnt tip bfy mgst4??.2.2.22 lq =?Tgutlr(igfank-lxt-fbih)# plrcnt tip bfy mgst4??.2.2.2? lq 4?lfrghhclft slhasnkfljsudelit-fbcl if3NGY-Ylha-Ynkflj-

Ilrtnanibtl-2;=>?2=9>?rlvgibtngf-imli` fgflrsb`lypbnr Z_-slha-snkflj-2;=>?2=9>?!iryptg p`n ilrtnanibtl imbnf Z_-slha-

snkflj-2;=>?2=9>?ilrtnanibtl slha-snkflj ?2

9?=4?49B 9?=4?2B9 B??9?4?2 ?4?4?2?29??J?1?> 4B=1:==1 A;?J?2?2 ?:?


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Ytbfjbrj N_ BIHs

Lxtlfjlj N_ BIHs

Lxtlfjlj N_ BIHs usnfk ZI_ lstbdhnsmlj

Tlahlxnvl N_ BIHs

Jyfbcni BIHs

Zncl-Dbslj BIHs Igftlxt-dbslj Biilss Igftrgh (IDBI) BIHs

Zypls ga BIHs


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Dlflants ga Anrlwbhhs

_rlvlfts lxpgsnfk slfsntnvlmgsts bfj bpphnibtngfs tguftrustlj uslrs

_rlvlft tml lxphgntbtngf gaprgtgigh ahbws dy sbfntnznfktml prgtgigh ahgw

Anrlwbhhs prlvlft cbhningusjbtb argc dlnfk slft tgslrvlrs bfj ihnlfts.

_rgplrhy igfankurlj anrlwbhhscb`l sliurnty pghniylfagrilclft sncphl, sibhbdhl,bfj rgdust.

B anrlwbhh rljuils tmligcphlxnty ga sliurntycbfbklclft dy gaahgbjnfkcgst ga tml fltwgr` biilssigftrgh tg b iguphl ga pgnfts nftml fltwgr`.


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Zypls ga Anrlwbhhs

Anhtlrnfk Anrlwbhhs

_bi`lt Anhtlrnfk Anrlwbhh

Ytbtlauh Anrlwbhh

Insig Yystlcs Anrlwbhh Yghutngfs


45/104

Ytbtlauh Anrlwbhh

2?.2.2.2 4??.9.9.9

Nfsnjl BIH

(Gutkgnfk Zrbaani)

Gutsnjl BIH

(Nfigcnfk Zrbaani)

plrcnt np 2?.?.?.? ?.?.?.4


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Jlsnkf Lxbcphl

A?/2

A?/?

A?/?

A?/2

Ylrnbh?/?/?

Ylrnbh?/?/2

T2

T9

T4

A?/1?-2 4>1?-4

4>1?-2(igfank)# vhbf 2??4>1?-2(igfank-vhbf)# rlcgtl-spbf

4>1?-2(igfank-vhbf)# lxnt

4>1?-2(igfank)#cgfntgr slssngf 2 sguril nftlrabil AbstLtmlrflt ?/24>1?-2(igfank)#cgfntgr slssngf 2 jlstnfbtngf rlcgtl vhbf 2??

rlahlitgr-pgrt AbstLtmlrflt ?/4:4>1?-2(igfank)# nftlrabil AbstLtmlrflt ?/44>1?-2(igfank-na)# swntimpgrt cgjl truf`

4>1?-4(igfank)#cgfntgr slssngf 4 sguril rlcgtl vhbf 2??4>1?-4(igfank)#cgfntgr slssngf 4 jlstnfbtngf nftlrabil AbstLtmlrflt ?/94>1?-4(igfank)# nftlrabil AbstLtmlrflt ?/44>1?-4(igfank-na)# swntimpgrt cgjl truf`

2. Igfankurl tml T_YBF QHBF

4. Igfankurl tml TY_BF sguril pgrts bfj QHBFs

9. Igfankurl tml TY_BF trbaani tg dl agrwbrjlj

\ n QHBF


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\snfk QHBFs

Irlbtls b slpbrbtl drgbjibst jgcbnf agr vgnil trbaani _rgtlits bkbnfst lbvlsjrgppnfk bfj tbcplrnfk

Tlfjlrs pbi`lt-sfnaanfk tgghs hlss laalitnvl Cb`ls nt lbsnlr tg ncphlclft QBIHs tmbt brl splinani tg vgnil trbaani

Qgnil QHBF 3 22? Jbtb QHBF 3 2?

=?4.2R Zruf`N_ pmgfl2?.2.22?.9 Jls`tgp _I2;2.2.2.2


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Butmlftnibtngf


78/104

Butmlftnibtngf

Bf BZC _lrsgfbhNfagrcbtngf Fucdlr(_NF) ns rlqunrlj agrbutmlftnibtngf.

Zml _NF ns b smbrljslirlt dltwllf b dbf`biiguft mghjlr bfj tmlanfbfinbh nfstntutngf.


79/104

Iryptbfbhysns Cltmgjs


80/104

Iryptbfbhysns Cltmgjs

@fgwf Inpmlrtlxt

Drutl Agril Bttbi`

[ntm b Drutl Agril bttbi`, tml bttbi`lr mbs sgcl pgrtngf gainpmlrtlxt. Zml bttbi`lr bttlcpts tg uflfirypt tml inpmlrtlxt wntmbhh pgssndhl `lys.

Yuiilssauhhy\flfiryptlj

@ly agufj

Zml Dbsnis


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Zml Dbsnis

Mbsmls brl uslj agrnftlkrnty bssurbfil.

Mbsmls brl dbslj gfgfl-wby aufitngfs.

Zml mbsm aufitngfmbsmls brdntrbry jbtbnftg b anxlj-hlfktm jnklst`fgwf bs tml mbsm

vbhul, clssbkl jnklst,jnklst, gr anfklrprnft.

Jbtb ga BrdntrbryHlfktm

Anxlj-HlfktmMbsm Qbhul

l==9bb?d4:i?>a

CJ


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CJ

Tlilnvlj Jbtb

MCBI(Butmlftnibtlj

Anfklrprnft)

Ylirlt @ly

:lmNJx1;FCgp>

_by tg Zlrry Ycntm $2??.??

Gfl Mufjrlj bfj xx/2?? Jghhbrs

Na tml klflrbtlj MCBI cbtimls tmlslft MCBI, tmlf nftlkrnty bfjbutmlftninty mbvl dllf vlrnanlj.

Na tmly jgft cbtim, jnsibrj tml

clssbkl.


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Bsyccltrni Lfiryptngf


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y yp

Bhsg `fgwf bs pudhni `ly bhkgrntmcs

Zml usubh `ly hlfktm ns 1 dnts

B slfjlr bfj rlilnvlr jg fgt smbrl b slirlt ly Tlhbtnvlhy shgw dlibusl tmly brl dbslj gf jnaaniuht igcputbtngfbh

bhkgrntmcs

Lxbcphls nfihujl TYB, LhKbcbh, lhhnptni iurvls, bfj JM.

Lfiryptngf @ly Jliryptngf @ly

Lfirypt Jlirypt$2??? $2???

%9a;&:

Zwg slpbrbtl

`lys wmnim brlfgt smbrlj

Yyccltrni Lfiryptngf


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Zlimfnquls

1: dnts 1:dnts 1:dnts?2?2??2?22??2?2?2?2?2??2?22??2?2?2

22??2?2dhbf` dhbf`

?2?2?2??2?2?2?2?2????2??2??2??2 ?2?2?2??2?2?2?2?2????2??2??2??2

Dhgi` Inpmlrlfiryptngf ns igcphltljnf 1: dnt dhgi`s

Ytrlbc Inpmlrlfiryptngf ns gfl dntbt b tncl

_udhni @ly (Lfirypt) + _rnvbtl @ly


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(Jlirypt) 3 Igfanjlftnbhnty

IgcputlrB

Dgds _udhni

@lyIbf N klt ygur _udhni @ly phlbsl7

Mlrl ns cy _udhni @ly.2

Dgds _udhni

@ly

9

4

LfiryptljZlxt

Dgds _rnvbtl

@ly:

Lfiryptngf

Bhkgrntmc

Lfiryptngf

Bhkgrntmc

Lfiryptlj

Zlxt

IgcputlrD

Igcputlr B biqunrlsIgcputlr Ds pudhni `ly

Igcputlr B usls Igcputlr Dspudhni `ly tg lfirypt b clssbklusnfk bf bkrllj-upgf bhkgrntmc

Igcputlr B trbfscnts

Zml lfiryptlj clssbkltg Igcputlr D

Igcputlr D usls

nts prnvbtl `ly tgjlirypt bfj rlvlbhtml clssbkl


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Ncphlclftnfk Qnrtubh _rnvbtl Fltwgr`s

[mbt ns b Q_F7


90/104

[mbt ns b Q_F7

Qnrtubh5Nfagrcbtngf wntmnf b prnvbtl fltwgr` nstrbfspgrtlj gvlr b pudhni fltwgr`.

_rnvbtl5Zml trbaani ns lfiryptlj tg `llp tml jbtbigfanjlftnbh.

Q_F

Q_F

Anrlwbhh

IYB

Tlkngfbh drbfim wntmb Q_F lfbdhljInsig NYT rgutlr

YGMG wntm b InsigJYH Tgutlr

Q_F

Cgdnhl [gr`lrwntm b InsigQ_F Ihnlft

Dusnflss _brtflr

wntm b Insig Tgutlr

Igrpgrbtl Fltwgr`

[BF

Nftlrflt

Hbylr 9 Q_F


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y

Klflrni rgutnfk lfibpsuhbtngf (KTL)

Cuhtnprgtgigh Hbdlh Ywntimnfk (C_HY) N_Yli

YGMG wntm b Insig JYHTgutlr

Q_FNftlrflt

N_Yli

N_Yli

Zypls ga Q_F Fltwgr`s


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Zypls ga Q_F Fltwgr`s

CBTY

Q_F

Q_F

Nrgf _grt

Anrlwbhh

N_Y

[ldYlrvlr

LcbnhYlrvlr JFY

IYBIYBIYBIYB

IYB

IYB

IYB

Tlkngfbh drbfim wntmb Q_F lfbdhljInsig NYT rgutlr

YGMG wntm bInsig JYH Tgutlr

Q_F

Cgdnhl [gr`lrwntm b InsigQ_F Ihnlft

Dusnflss _brtflrwntm b Insig Tgutlr

Yntl-tg-Yntl

Q_Fs

Tlcgtl-biilssQ_Fs

Nftlrflt

[BF

N_Yli Ihnlfts


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N_Yli Ihnlfts

Ycbhh Gaanil

Nftlrflt

InsigBfyIgfflit

Q_F Ihnlft

Ilrtnigc _JB N_sliQ_F Ihnlft

Nftlrflt

Insig Q_FYgatwbrl Ihnlft

Tgutlr wntm

Anrlwbhh bfjQ_F Ihnlft

B wnrlhlss ihnlft tmbt ns hgbjlj gf b pjb

Ygatwbrl hgbjlj gf b _I

B fltwgr` bpphnbfil tmbt igfflits YGMG HBFs tg tml Q_F

_rgvnjls rlcgtl uslrs wntm sliurl Q_F igfflitngfs

N_Yli Zgpghgky


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N_Yli Zgpghgky

[gr`s bt tml fltwgr` hbylr, prgtlitnfk bfj butmlftnibtnfk N_ pbi`lts.

Nt ns b arbclwgr` ga gplf stbfjbrjs wmnim ns bhkgrntmc-nfjlplfjlft.

Nt prgvnjls jbtb igfanjlftnbhnty, jbtb nftlkrnty, bfj grnknf butmlftnibtngf.

Dusnflss _brtflrwntm b Insig Tgutlr

Tlkngfbh Gaanil wntm bInsig _N] Anrlwbhh

YGMG wntm b InsigYJF/JYH Tgutlr

Cgdnhl [gr`lr wntm bInsig Q_F Ihnlft

gf b Hbptgp Igcputlr

BYB

Hlkbiy

Igfilftrbtgr

Cbnf Yntl

_lrncltlrTgutlr

HlkbiyInsig_N]Anrlwbhh

N_sli

_G_

Igrpgrbtl

_rl-smbrlj @ly (_Y@)


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JM;Jnaanl-Mlhhcbf

_rl-smbrlj @ly (_Y@)

Bt tml hgibh jlvnil, tml butmlftnibtngf ly bfj tml njlftnty nfagrcbtngf (jlvnil-splinaninfagrcbtngf) brl slft tmrgukm b mbsm bhkgrntmc tg agrc mbsmWN. Gfl-wby butmlftnibtngf nslstbdhnsmlj dy slfjnfk mbsmWN tg tml rlcgtl jlvnil. Na tml rlcgtl jlvnil ibf nfjlplfjlfthyirlbtl tml sbcl mbsm, tml hgibh jlvnil ns butmlftnibtlj.Zml butmlftnibtngf prgilss igftnfuls nf tml gppgsntl jnrlitngf. Zml rlcgtl jlvniligcdnfls nts njlftnty nfagrcbtngf wntm tml prlsmbrlj-dbslj butmlftnibtngf `ly bfj slfjs nttmrgukm tml mbsm bhkgrntmc tg agrc mbsmWT. mbsmWT ns slft tg tml hgibh jlvnil. Na tml hgibhjlvnil ibf nfjlplfjlfthy irlbtl tml sbcl mbsm, tml rlcgtl jlvnil ns butmlftnibtlj.


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97/104

Cbfbknfk b Yliurl Fltwgr`

N_Yli Q_F Flkgtnbtngf


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N@L _mbsl 2

N@L _mbsl 4

N@L YB N@L YB

N_sli YBN_sli YB

2. Mgst B slfjs nftlrlstnfk trbaani tg Mgst D.

4. T2 bfj T4 flkgtnbtl bf N@L _mbsl 2 slssngf.

9. T2 bfj T4 flkgtnbtl bf N@L _mbsl 4 slssngf.

:. Nfagrcbtngf ns lximbfklj vnb N_sli tufflh.


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Lvbhubtngf

\figvlr jlsnkf, ncphlclftbtngf, bfjgplrbtngfbh ahbws tmbtiguhj hlbj tg tml vnghbtngf ga tml

sliurnty pghniy.

Jltlrcnfl tml bjlqubiy ga sliurntyclimbfnscs, bssurbfils,bfj jlvnil prgplrtnls tg lfagril tmlsliurnty pghniy.

Bsslss tml jlkrll ga igfsnstlfiydltwllf tml systlcjgiuclftbtngf bfj nts ncphlclftbtngf.

Gdelitnvls ga YZ&L5

Fcbp


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Fcbp

Dbsni aufitngfbhnty Ihbssni ZI_ bfj \J_

pgrt sibffnfk

Ihbssni ZI_ bfj \J_

pgrt swllpnfk

Ytlbhtm ZI_ bfj \J_pgrt sibfs bfj swllps

Tlcgtl gplrbtnfk

systlc njlftnanibtngf,`fgwf bs GYanfklrprnftnfk.

Jnsbstlr Tligvlry


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Jnsbstlr Tligvlry

Zml prgilss ga rlkbnfnfkbiilss tg tml jbtb,mbrjwbrl, bfj sgatwbrlflilssbry tg rlsucl

irntnibh dusnflssgplrbtngfs batlr bjnsbstlr.

_hbf agr igpnfk wntmuflxplitlj gr sujjlfhgss ga `ly plrsgfflh.

Gplrbtngfs bfj Cbnftlfbfil


102/104

Nfntnbtngf

Biqunsntngf bfj

Jlvlhgpclft

NcphlclftbtngfGplrbtngfs bfj

Cbnftlfbfil

Jnspgsntngf

Igfankurbtngf cbfbklclft bfj igftrgh5lfsurls tmbt tmlrl ns bjlqubtligfsnjlrbtngf ga tml pgtlftnbh sliurnty ncpbits jul tg splinani imbfkls tg bfnfagrcbtngf systlc gr nts surrgufjnfk lfvnrgfclft.Igftnfugus cgfntgrnfk5lfsurls tmbt igftrghs igftnful tg dl laalitnvl nf tmlnr

bpphnibtngf tmrgukm plrngjni tlstnfk bfj lvbhubtngf.

Yliurnty _ghniy Dlflants


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Yliurnty _ghniy Dlflants

Jlcgfstrbtls bfgrkbfnzbtngfs igccntclft tg

sliurnty.

Ylts tml ruhls agr lxplitljdlmbvngr.

Lfsurls igfsnstlfiy nfsystlc gplrbtngfs, sgatwbrlbfj mbrjwbrl biqunsntngf bfjusl, bfj cbnftlfbfil.

Jlanfls tml hlkbh

igfslqulfils ga vnghbtngfs.

Knvls sliurnty stbaa tmldbi`nfk ga cbfbklclft.


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BTQNFJ @\CBT YMBTCB(INYIG Ilrtnanlj Bibjlcy Nfstruitgr)

IIFB,IIF_,IIFB Yliurnty NfstruitgrINYIG Tlkngfbh Bibjlcy

Ilftrl agr lhlitrgfni Kgvlrfbfil Ebnpur

Network Security- Arvind Kumar Sharma

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