Attack detection vs p rivacy in wireless sensor networks
Download
1 / 3

Attack detection vs. p rivacy in wireless sensor networks - PowerPoint PPT Presentation


  • 125 Views
  • Uploaded on

Attack detection vs. p rivacy in wireless sensor networks. Wireless sensor network (WSN) Constrained in energy & computational power Usually process sensitive information Often deployed in physically unprotected area High risk of being attacked Active attacker disturbs network operation

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Attack detection vs. p rivacy in wireless sensor networks' - zena


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Attack detection vs p rivacy in wireless sensor networks

IHCONFERENCE 2011

Attack detection vs. privacy in wireless sensor networks

  • Wireless sensor network (WSN)

    • Constrained in energy & computational power

    • Usually process sensitive information

    • Often deployed in physically unprotected area

  • High risk of being attacked

    • Active attacker disturbs network operation

    • Passive attacker deduces sensitive information

  • How to protect WSN against both types of attacks?

    • Privacy mechanism

    • Intrusion detection system (IDS)


Somewhat contradictory aims

IHCONFERENCE 2011

Somewhat contradictory aims

  • Privacy mechanism hides the links between various events

    • Packets are re-encrypted hop-by-hop

    • Identities in packets are replaced with per-packet changing pseudonyms

    • Dummy traffic is added

  • IDS detects attack by linking events together

  • Problems

    • IDS cannot deduce that packets were sent by X & addressed to Y

    • Cannot determine that X sends too many packets

    • Cannot decide whether packets were forwarded by Y or not

A

X

Y


Research questions

IHCONFERENCE 2011

Research questions

  • What problems do occur when both techniques are used?

  • How to employ both techniques together?

  • Jiří Kůr, Vashek Matyáš, Andriy Stetsko, Petr Švenda. Attack detection vs. privacy – How to find the link or how to hide it?To appear in the proceedings of the 19th Security Protocols Workshop, Cambridge, 2011. LNCS.Springer Verlag, 2011.

  • Pre-proceedings version available at:


ad