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A Secure Multipath Transmission Scheme Based on One-Way Hash Functions in Wireless Sensor Networks

무선 센서 네트워크 환경에서 단-방향 해쉬 함수 기반 다중 경로 보안 전송 기법

  • 이윤정 (충북대학교 정보통신공학부) ;
  • 김동주 (충북대학교 정보통신공학부) ;
  • 박준호 (충북대학교 정보통신공학부) ;
  • 성동욱 (한국과학기술원 전산학과) ;
  • 유재수 (충북대학교 정보통신공학부)
  • Received : 2011.12.02
  • Accepted : 2011.12.20
  • Published : 2012.01.28

Abstract

With the development of sensing devices and wireless communication technologies, wireless sensor networks are composed of a large number of sensor nodes that are equipped with limited computing performance and restricted communication capabilities. Besides, the sensor nodes are deployed in hostile or unattended environments. Therefore, the wireless sensor networks are vulnerable to security. In particular, the fatal damage may be occurred when data are exposed in real world applications. Therefore, it is important for design requirements to be made so that wireless sensor networks provide the strong security. However, because the conventional security schemes in wired networks did not consider the limited performance of the sensor node, they are so hard to be applied to wireless sensor networks. In this paper, we propose a secure multipath transmission scheme based on one-way hash functions in wireless sensor networks considering the limited performance of the wireless sensor nodes. The proposed scheme converts a sensor reading based on one of one-way hash functions MD5 in order to make it harder to be cracked and snooped. And then, our scheme splits the converted data and transfers the split data to the base station using multi-path routing. The experimental results show that our proposed scheme consumes the energy of just about 6% over the existing security scheme.

Keywords

Wireless Sensor Networks;Security;One-Way Hash Functions;MD5;Multi-path Routing

Acknowledgement

Supported by : 한국연구재단

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