Partitioned type dynamic safety routing method for wireless sensor network on basis of hash chains

A wireless sensor and dynamic security technology, applied in the field of sensor network, achieves the effect of simple algorithm, reducing communication energy consumption and ensuring accuracy

Inactive Publication Date: 2011-11-16
NANJING UNIV OF TECH
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Problems solved by technology

Since all packets of a WSN network are sent to the same dest

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  • Partitioned type dynamic safety routing method for wireless sensor network on basis of hash chains
  • Partitioned type dynamic safety routing method for wireless sensor network on basis of hash chains
  • Partitioned type dynamic safety routing method for wireless sensor network on basis of hash chains

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Embodiment Construction

[0060] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0061] For the two common attacks in the multi-hop network mentioned in the background technology: node spoofing and node encroachment, there are two methods to avoid attacks: the first is to choose different routing strategies so that the attacker does not know the data transmission path, but This often requires avoiding the optimal routing strategy; the second is key management, using keys for data encryption and identity authentication during data interaction.

[0062] For the first type of attack, we combine the static key management system with the hash chain, derive the node communication key from the chain key randomly selected by the cluster head, and use the one-way hash function and random function for authentication. It can effectively isolate spoofing attacks of malicious nodes, greatly reduce network load, improve key correlation and n...

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Abstract

The invention discloses a partitioned type dynamic safety routing method of a wireless sensor network on the basis of hash chains, which belongs to the field of the computer communication network. According to the partitioned type dynamic safety routing method, a region concept is introduced according to characteristics of clustered routing algorithms and cycle circulation in the wireless sensor network, and a control message is broadcast to the entire network from converging nodes. The region of each node is determined according to the received signal strength, and direct communication among the nodes with larger distance can be avoided by the limitation of the region. After each cycle of cluster head is selected, q link keys are selected from a key pond composed of the hash chains by the node of each cluster head at random, and mutual communicating secret keys are derived according to oneway hash functions and fake random functions used for the chain keys by the other nodes so as to reduce the network communication load. According to the invention, the survival time of the network can be prolonged, the energy consumption of the nodes of the network is better balanced, the safety of the protocol is enhanced, the distribution of the nodes is made to be uniform, and the scope of networks where the protocol is applicable is enlarged.

Description

technical field [0001] The invention relates to a dynamic hash-chain-based wireless sensor network partition type multi-hop secure routing method HDS-LEACH (hash-chain dynamic secure LEACH), which belongs to the field of sensor networks. Background technique [0002] The application fields of sensor networks are very extensive, and can be used in military, environmental monitoring and forecasting, health care, smart home, building status monitoring, urban traffic, and security monitoring of airports and large industrial parks. In these applications, sensor nodes need to communicate with the base station in real time in order to collect timely and effective data, and the security of information is an important issue at this time. Since the deployment environment is often in an unsupervised area, the sensor network is more vulnerable to attacks from malicious nodes, and is easier to be captured and destroyed. How to minimize the damage to the entire network and continue to pe...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56H04L9/08H04W12/04H04W40/02H04L12/701H04W12/03H04W12/102
CPCY02D30/70
Inventor 白光伟缪成蓓曹磊顾跃跃叶飞虎
Owner NANJING UNIV OF TECH
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