Post on 07-Jul-2018
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
1/22
SECURING UNDERWATER WIRELESS COMMUNICATION NETWORKS
SUBMITTED BY
T.SAI DEEPTHI SREE V.VATSALYA DEPARTMENT OF ECE
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
2/22
CONTENTS
Introduction Underwater Wireless Communication sstem Attac!s and counter measures
Securit re"uirements Pro#osed securit mec$anisms Conclusion
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
3/22
INTRODUCTION
(UWCNs )are constituted b sensors! sin"and autono#ous under$ater %e&ic'es(AUs) t&at interact to er*or# seci+ca'ications suc& as under$ater#oniterin,-
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
4/22
Sensor nodes also !nown as motes or sim#l %odes aresmall and ener& constrained de'ices t$at $a'e t$e a(ilit o)
sensin& t$e surroundin& en'ironment.
Sin" also !nown as (ase station* is a more #ower)ul nodet$at (e$a'es as an inter)ace (etween t$e sensor nodes andt$e clients.
Autono#ous Under$ater e&ic'es(AUs)t$at interact to #er)orm s#eci+c a##lications suc$ as
underwater moniterin&.
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
5/22
Under$ater Wire'ess Co##unication Sste#
Radio wa'es do not #ro#a&ate well underwater due to t$e $i&$ener&
a(sor#tion o) water
T$ere)ore* underwater communications are (ased on acousticlin!sc$aracteri,ed ( lar&e #ro#a&ation delas.
T$e #ro#a&ation s#eed o) acoustic si&nals in water -t#icall
/00 m1s2
Acoustic c$annels $a'e low (andwidt$. As a result* t$e (it errorrates o) acoustic lin!s are o)ten $i&$* and losses o) connecti'it arise
It cannot rel on t$e 3lo(al Positionin& Sstem -3PS2 (ecause it
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
6/22
Under$ater Wire'ess Co##unication Sste#
Underwater wireless communication networ!s are #articularl
'ulnera(le to malicious attac!s due to t$e $i&$ (it error rates*lar&e and 'aria(le #ro#a&ation delas* and low (andwidt$ o) acousticc$annels.
Se'eral met$ods are #ro#osed to secure Underwater wirelesscommunication %etwor!s. T$ree sc$emes namel* secure timesnc$roni,ation* locali,ation* and routin& in UWC%s
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
7/22
Attac" s
Wor#&o'e
attac"
Sin"&o'e
Attac"
.e''o/'oodattac"
Ac"no$'ed,e#e
ntSoo+n
,
Se'ecti%e/or$ardi
n,
Sbi'attac"
0a##in,
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
8/22
0a##in,
Met&od o* Attac" T$e transmission o) data #ac!ets continuousl sot$at t$e
wireless c$annel is com#letel (loc!ed.
Counter#easuresS#read s#ectrum tec$ni"ues
Sensors can switc$ to slee# mode
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
9/22
Se'ecti%e /or$ardin,
Met&od o* Attac" Malicious nodes dro# certain messa&es instead o))orwardin& t$em to
$inder routin&.
Counter#easuresMulti#at$ routin&
Aut$entication
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
10/22
Sin"&o'e Attac"
Met&od o* Attac" A malicious node attem#ts to attract tra4c )rom a#articular area towards it ( announcin& t$at it is a $i&$ "ualit
route
Counter#easures3eo&ra#$ical routin&Aut$entication o) nodes e5c$an&in& routin&
in)ormation.
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
11/22
.e''o1ood attac"
Met&od o* attac" A node recei'in& a HE667 #ac!et )rom a malicious nodema inter#ret t$at t$e ad'ersar is a nei&$(our.
Counter#easuresBidirectional lin! 'eri+cation
Aut$entication is a #ossi(le de)ense
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
12/22
Securit Re2uire#ents
Aut&enticationProo) t$at data was sent ( a le&itimate usercon+dentialit
In)ormation is not accessi(le to unaut$ori,ed #arties
Inte,ritIn)ormation is not altered a'aila(ilit
Data s$ould (e a'aila(le w$en needed ( anaut$ori,ed user
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
13/22
3roosed Securit Mec&anis#
Secure under$ater co##unicationSecure time snc$roni,ation
Secure locali,ation
Secure routin&
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
14/22
Secure ti#e Snc&roni4ation
W& is Ti#e Snc&roni4ationI#ortant56ocation and #ro5imit o) si(lin&s
Intra networ! coordination
Maintain orderin& o) messa&es
Use o) TDMA
Ener& e4cienc
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
15/22
Secure ti#e Snc&roni4ation
Mu'ti'ateration a',orit3&ase 67Assume t$at a set o) anc$or nodes on ocean sur)ace alread
!now t$eir location and time wit$out error A &rou# o) near( sensors recei'es snc$roni,ation Pac!ets)rom at least / anc$or nodes
3&ase 87 T$e sensors learn t$eir time di8erence (etween t$emsel'es andanc$or
nodes ( com#arin& t$e snc$roni,ation #ac!ets T$ese nodes su(se"uentl (ecomes t$e ne5t anc$or nodes
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
16/22
Secure Loca'i4ation
Goa'9 To &uarantee correctness des#ite o) t$e #resence o)Intruders
6ocali,ation is t$e #rocess )or eac$ sensor node to locateits #ositions in t$e networ!.
6ocali,ation al&orit$ms de'elo#ed )or terrestrial sensornetwor!s are eit$er (ased on t$e si,na' stren,t& or t$e ti#e9o*9arri%a' (TOA)
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
17/22
Secure Loca'i4ation
Ran,e9based : Use e5act measurements -#oint:to:#oint distanceestimate
-ran&e2 or an&le estimates2 : More e5#ensi'e : Scala(le 6ocali,ation wit$ Mo(ilit Prediction
-S6MP2
Ran,e9*ree : Cost:e8ecti'e alternati'e to ran&e:(ased solutions
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
18/22
Secure Routin,
Routin& is es#iciall c$allen&in& in UWC%s due to t$e lar&e #ro#a&ation delas* low (andwidt$* di4cult o) (atterre+lls o) underwater sensors* and dnamic to#olo&ies.
A secure routin& re;ects routin& #at$s containin& malicious
nodes.
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
19/22
Secure Routin,Proacti'e #rotocols -DSD
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
20/22
Ad%anta,es
It a'oids data s#oo+n&.
It a'oids #ri'ac lea!a&e.
Minimi,e communication and com#utational cost.
Ma5imi,es t$e (atter #ower ( #reser'in& t$e #ower o)Underwater sensors.
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
21/22
Conc'usion
Wireless tec$nolo& #las a 'ital role in man a##lication areast$at
were not #ossi(le in t$e #ast. Wireless Underwater
communication isone o) t$em.
T$e main attac!s related to UWC% $a'e (een sur'eed.
A sstem wit$ secure time snc$roni,ation* secure locali,ation
andsecure routin& can o'ercome t$ese attac!s.
Since t$e de'elo#ment o) t$e #ro#osed sstem is still in itsde'elo#ment
sta&e* an account o) actual im#lementation $as not (een
8/19/2019 securing underwater wireless communication networks ppt.pptx123.pptx
22/22
THA%> Y7U