Security

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The document discusses various security threats in wireless sensor networks such as denial of service (DOS) attacks, Sybil attacks, wormhole attacks, and Hello flood attacks. It then provides solutions and techniques to mitigate these threats, including using encryption methods like ECC and RSA, and protocols like LEAP. Multicasting and broadcasting in wireless sensor networks is also briefly covered.

Education

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mahsanmokhtari83@gmail.com
mahsanmokhtari83@gmail.com

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Sybil

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(DOS)

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SYBIL

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SYBIL

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BLACK HOLE/SINK HOLE

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HELLO FLOOD

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WORMHOLE

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WORMHOLE

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WORMHOLE

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Compute KB * TA
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Security

1. @ @ mahsanmokhtari83@gmail.com mahsanmokhtari83@gmail.com

2. > @ @ > > @ @> > . > > @ . < @ @ > > . > 2

3. > @ @ . > @ @ > @ @ > > @ > @ >> > @ > < > @ > > > > @ > @ > @ . > @ >> > <> > @ @ > @ > >. @ > > > > @> > > < > < @> . > 3

4. @ @ E B C A D Sensor nodes Sensor field User 4

5. @ > > @ @ @ . > > > >> @ < >> > > < . > . @ @ @ > < @ < > > > Parent . 5

6. @ >> @ > @ > >> .> > > > > <> @> @ . @ . 6 @ >

7. @ . > > @ @ @ > > > > » . « @ @ > @ . > . < @ @> > @ . > > > 7

8. @ > > > @ @ > > > > @ > 8

9. @ @ @ >> > >> >> @ > > (Secure Range-In depended Localization) SeRLoc > µTESLA 9

10. @ >> > Sybil Wormhole Black hole/Sinkhole > > > > Hello Flood >> @ 10

11. (DOS) > > < >. @ > > > @> > > > > > > . .> >> @ < > > <@ @ >. . @ >@ > <@ @ > <DoS > > @ > < .> 11

12. DOS > > > - @ > - @ - @ - > > > > > @ > @ > > - - > > - - @ ( ) 12

13. (DOS) > > < @ >> > > < >. . < @ > > > > @ . :>> > > > > > > > .> > > @ >> < > > < 13

14. SYBIL > " sybil .>> "> @ > @ > > sybil < @ @ . > > <@ @ < > > < @ . sybil > < @ >@ @ > > @ @ > >< . @ @ .> sybil < . > 14

15. SYBIL Sybil > <ad hoc < . @ @ > <> @ > . > @ > >. > > > @ . @ > > > Sybil . Sybil @ . > 15

16. SYBIL F Z Y B A E B C X Sybil Node 16 C

17. SYBIL <Sybil > >@ . > > « » :> > > > @ > = > < > « » > . > 17

18. > > > > . > @ @ > >< > . > > > > <> > @ .? > < > > 18

19. . > < >> . <> > < > >> @ . > > > @ @ < > @ @ @ > . > @> > < >@ @ > . > < @ > 19

20. BLACK HOLE/SINK HOLE > . @ @ > < > > > @ . > . < > @ > > . > >@ @ >@ < 20

21. BLACK HOLE B Attacker Base Station 21

22. < > > > @ @ >> > . > > @ @ > >. @ . @ @ > < @ @ >< . > > > > > > > < > . @ . > > > > > 22

23. > > . . . @ . . 23

24. > @ > @ . > @ > @ > >> < . > > > < > @> > . > 24

25. HELLO FLOOD @ > > @ > Hello @ . > > > > > < > > > @ @> Hello @ < . < . > @ < > > > > > > < . 25

26. > @ > < > < >> >. > . > @> < > > > < . > > >< .> < > @> @ > @ > @ > > @ > > > @ . < > 26

27. WORMHOLE > @ <wormhole @ .> @ > .> > > <> @ @ > > > @ .> > 27

28. WORMHOLE Attacker B Z B Z Wormhole link Y Y 28

29. WORMHOLE Hass <Dahill < ad hoc @ @ <wormhole > > @ @ < > >@ . Hu . @ < @ > @ >> @ RF > . wormhole > . watermarking wormhole < @ > @ > @> @ < > @ @ . @ . >> >@ > @ . < 29

30. WORMHOLE wormhole > > 30

31. - >= @ DES,3DES,RC5,AES = @ > @ @ > LEAP > Elliptic Curve Cryptography(ECC) @ @ 31

32. @ ECC RSA @ > > @ @ <ECC 160 @ . > RSA 1024 . RSA > > ECC > @ 32

33. - >@ > Agree on E , G Alice chooses random KA TA = KA * G Bob chooses random KB TB = KB * G Compute KB * TA Compute KA * TB Agree on G * KB * KA 33

34. BROADCASTING & MULTICASTING @ @ 34

35. 35

36. 36

37. 37 Multicasting

38. 38 Broadcasting

39. ... 39