Security Issues in Distributed Sensor Networks

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Security Issues in Distributed
Sensor Networks

• Yi Sun
• Department of Computer Science and Electrical
  Engineering
• University of Maryland, Baltimore County
• 2007. 10

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Outline

1. Introduction
2. Security Criteria
3. Vulnerabilities
4. Attack types
5. Security Schemes

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1. Introduction

• Explosive growth of mobile computing devices
• laptops
• personal digital assistants (PDAs)
• handheld digital devices
• Ubiquitous computing
• Individual users utilize, at the same time,
  several electronic platforms through which they
  can access all the required information whenever
  and wherever they may be

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2. Security Criteria

• Availability
• Provide all the designed services
• Integrity
• Malicious altering, accidental altering
• Confidentiality
• Accessible to authorized nodes
• Authenticity
• Prove identities

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2. Security Criteria

• Nonrepudiation
• Cannot disavow sent or received a message
• Authorization
• Specifies the privileges and permissions
• Anonymity
• Privacy preserving

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3. Vulnerabilities

• Lack of secure boundaries
• No need to gain the physical access to visit the
  network
• Threats from compromised nodes inside the network
• Behavioral diversity of different nodes,
  mobility
• Lack of centralized management facility
• Benign failures, trust management, cooperative
  algorithm
• Restricted power supply
• Battery, DoS, selfish node
• Scalability
• Efficient routing protocol, key management
  service

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4. Attack types

• Denial of Service (DoS)
• Radio jamming, battery exhaustion
• Impersonation
• Compromised nodes join the network as normal
  nodes
• Eavesdropping
• Obtain confidential information during
  communication
• Attacks against routing
• Attacks on routing protocols, attacks on packet
  forwarding/delivery

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5. Security Schemes

• Intrusion Detection Techniques
• Distributed and cooperative to meet with the
  needs of sensor networks
• Secure Routing Techniques
• Defend specific attacks and general attacks
• Medium Access Control
• Guaranteed or controlled access, random access
• Key Management
• Cryptography

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• Thanks!

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References

• Y. Zhang and W. Lee, Intrusion Detection in
  Wireless Ad-hoc Networks, in Proceedings of the
  6th International Conference on Mobile Computing
  and Networking (MobiCom 2000), pages 275283,
  Boston, Massachusetts, August 2000.
• Jim Parker, Anand Patwardhan, and Anupam Joshi,
  Detecting Wireless Misbehavior through
  Cross-layer Analysis, in Proceedings of the IEEE
  Consumer Communications and Networking Conference
  Special Sessions (CCNC2006), Las Vegas, Nevada,
  2006.
• Y. Hu, A. Perrig and D. Johnson, Rushing Attacks
  and Defense in Wireless Ad Hoc Network Routing
  Protocols, in Proceedings of ACM MobiCom Workshop
  - WiSe03, 2003.
• Yi-an Huang and Wenke Lee, A Cooperative
  Intrusion Detection System for Ad Hoc Networks,
  in Proceedings of the 1st ACM Workshop on
  Security of Ad hoc and Sensor Networks, Fairfax,
  Virginia, 2003, pp. 135 147.
• Panagiotis Papadimitraos and Zygmunt J. Hass,
  Securing Mobile Ad Hoc Networks, in Book The
  Handbook of Ad Hoc Wireless Networks (Chapter
  31), CRC Press LLC, 2003.