securing underwater wireless communication network
TRANSCRIPT
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Introduction
History
Underwater Wireess Co!!unication Tec"#
Attac$s and counter !easures
Necessity o% Underwater WireessCo!!unication
Concusion
Re%erences
OUTLINE
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Underwater wireess co!!unication is
t"e wireess co!!unication in w"ic"acoustic si&nas 'wa(es) carry di&itain%or!ation t"rou&" an underwater c"anne#
T"e si&na t"at are used to carry di&itain%or!ation t"rou&" an underwater c"anneare acoustic c"anne#
INTRODUCTION
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T"e science o% underwater acoustics *e&an in +,-./w"en Leonardo Da 1inci/ stated#
In +234 Isaac Newton wrote "is Mat"e!atica5rinci6es o% Natura 5"ioso6"y w"ic" incuded t"e7rst !at"e!atica treat!ent o% sound in water#
HISTORY
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Radio wa(es do not 6ro6a&ate we
underwater due to t"e "i&" ener&ya*sor6tion o% water#
T"ere%ore/ underwater co!!unication are
*ased on acoustic in$s c"aracteri8ed *yar&e 6ro6a&ation deays#
Acoustic c"annes "a(e ow *andwidt"#
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T"e si&na t"at are used to carry di&ita in%or!ation
t"rou&" an underwater c"anne are acoustic c"anne#
T"e 6ro6a&ation s6eed o% acoustic si&nas in water isty6icay +9.. !:s#
It cannot rey on t"e Go*a 5ositionin& Syste! 'G5S)#
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T"e si&na t"at are used to carry di&ita in%or!ation
t"rou&" an underwater c"anne are acoustic c"anne#
T"e 6ro6a&ation s6eed o% acoustic si&nas in water isty6icay +9.. !:s#
It cannot rey on t"e Go*a 5ositionin& Syste! 'G5S)#
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T"is is an !uti6at"6ro6a&ation in water#
In s"aow water/ !uti6at"occurs due to si&na re;ection%ro! t"e sur%ace and *otto!#
In dee6 water/ it occurs dueto ray *endin
WAVE ROA!ATIO"
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ATTAC#S A"$ COU"TER %EASURES&&'
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Met"od o% Attac$
T"e trans!ission o% data 6ac$etscontinuousy so t"at t"e wireess c"anne&et co!6etey *oc$ed#
Counter!easures
S6read s6ectru! tec"ni
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%ethod o( attac)
>ase nei&"*or"oodreations"i6 are
created##
Countermeasures
Esti!atin& t"edirection o% arri(a?
Wor!"oe Attac$
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Aut"entication
5roo% t"at data was sent *y a e&iti!ate user
Inte&rity
In%or!ation is not atered#
Security re*uirement
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Con7dentiaity
In%or!ation is not accessi*e to unaut"ori8ed6arties#
A(aia*iity
Data s"oud *e a(aia*e w"en needed *y an
aut"ori8ed user#
Security re*uirement
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