The universality of the application of wireless sensor networks( WSN) makes more attention be paid on the security problem. Node authentication is not only the basis of network security,but also the premise of key man...The universality of the application of wireless sensor networks( WSN) makes more attention be paid on the security problem. Node authentication is not only the basis of network security,but also the premise of key management and secure routing protocol. Although the signature mechanism based on symmetric encryption is high in energy efficiency,it is vulnerable to be attacked and there is a time delay during authentication. Traditional public key encryption mechanism with improvement in security brings in complex algorithm and costs much time,which is not suitable for WSN. In this paper,a signature authentication mechanism,an optimized variant Bellare Namprempre Neven( OvBNN) is presented to quickly complete the authentication by mutual cooperation between nodes so as to make the nodes use the intermediate calculation results of their neighbor nodes directly.Simulation results show that the proposed mechanism is superior to traditional authentication mechanisms both in energy consumption and authentication time.展开更多
描述了由Hu Y C,Perrig A和Johnson D B等人提出的一种用于移动自组网的安全按需路由协议(ARIADNE)的安全机制与工作原理,简要介绍了ARIADNE在实际环境中所受到的常见的路由攻击类型。利用OPNET软件建立带有不同类型恶意路由攻击的场景...描述了由Hu Y C,Perrig A和Johnson D B等人提出的一种用于移动自组网的安全按需路由协议(ARIADNE)的安全机制与工作原理,简要介绍了ARIADNE在实际环境中所受到的常见的路由攻击类型。利用OPNET软件建立带有不同类型恶意路由攻击的场景,通过仿真实验与DSR进行比较,分析了ARIADNE在各种类型路由攻击下的安全性。结果表明,ARIADNE在应对报文丢弃攻击以及路由篡改攻击时表现出了良好的性能,但是在路由伪造攻击环境下的性能不是很理想。展开更多
Wireless sensor networks (WSNs) are important application for safety monitoring in underground coal mines, which are difficult to monitor due to natural conditions. Based on the characteristic of limited energy for WS...Wireless sensor networks (WSNs) are important application for safety monitoring in underground coal mines, which are difficult to monitor due to natural conditions. Based on the characteristic of limited energy for WSNs in confined underground area such as coal face and laneway, we presents an energy- efficient clustering routing protocol based on weight (ECRPW) to prolong the lifetime of networks. ECRPW takes into consideration the nodes' residual energy during the election process of cluster heads. The constraint of distance threshold is used to optimize cluster scheme. Furthermore, the protocol also sets up a routing tree based on cluster heads' weight. The results show that ECRPW had better perfor- mance in energy consumption, death ratio of node and network lifetime.展开更多
基金Support by the National High Technology Research and Development Program of China(2012AA120802)the National Natural Science Foundation of China(61771186)+1 种基金the Postdoctoral Research Project of Heilongjiang Province(LBH-Q15121) the Undergraduate University Project of Young Scientist Creative Talent of Heilongjiang Province(UNPYSCT-2017125)
文摘The universality of the application of wireless sensor networks( WSN) makes more attention be paid on the security problem. Node authentication is not only the basis of network security,but also the premise of key management and secure routing protocol. Although the signature mechanism based on symmetric encryption is high in energy efficiency,it is vulnerable to be attacked and there is a time delay during authentication. Traditional public key encryption mechanism with improvement in security brings in complex algorithm and costs much time,which is not suitable for WSN. In this paper,a signature authentication mechanism,an optimized variant Bellare Namprempre Neven( OvBNN) is presented to quickly complete the authentication by mutual cooperation between nodes so as to make the nodes use the intermediate calculation results of their neighbor nodes directly.Simulation results show that the proposed mechanism is superior to traditional authentication mechanisms both in energy consumption and authentication time.
文摘描述了由Hu Y C,Perrig A和Johnson D B等人提出的一种用于移动自组网的安全按需路由协议(ARIADNE)的安全机制与工作原理,简要介绍了ARIADNE在实际环境中所受到的常见的路由攻击类型。利用OPNET软件建立带有不同类型恶意路由攻击的场景,通过仿真实验与DSR进行比较,分析了ARIADNE在各种类型路由攻击下的安全性。结果表明,ARIADNE在应对报文丢弃攻击以及路由篡改攻击时表现出了良好的性能,但是在路由伪造攻击环境下的性能不是很理想。
基金supports provided by the National Natural Science Foundation of China (No.50904070)the China Postdoctoral Science Foundation (No.20100471009)+2 种基金the National High Technology Research and Development Program of China (Nos. 2008AA062200 and2007AA01Z180)the Key Project of Jiangsu (No. BG2007012)the Science Foundation of China University of Mining and Technology (No. OC080303)
文摘Wireless sensor networks (WSNs) are important application for safety monitoring in underground coal mines, which are difficult to monitor due to natural conditions. Based on the characteristic of limited energy for WSNs in confined underground area such as coal face and laneway, we presents an energy- efficient clustering routing protocol based on weight (ECRPW) to prolong the lifetime of networks. ECRPW takes into consideration the nodes' residual energy during the election process of cluster heads. The constraint of distance threshold is used to optimize cluster scheme. Furthermore, the protocol also sets up a routing tree based on cluster heads' weight. The results show that ECRPW had better perfor- mance in energy consumption, death ratio of node and network lifetime.
