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Mobile AD Hoc network self-adapting secure routing method based on reliability

A reliable and self-adaptive technology, applied in network topology, security devices, electrical components, etc., to ensure confidentiality, high efficiency, and reduce hot spots

Active Publication Date: 2011-08-17
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, none of these routing methods is considered completely secure and reliable

Method used

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  • Mobile AD Hoc network self-adapting secure routing method based on reliability
  • Mobile AD Hoc network self-adapting secure routing method based on reliability
  • Mobile AD Hoc network self-adapting secure routing method based on reliability

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Embodiment Construction

[0079] See figure 1 , a kind of reliability-based mobile AdHoc network adaptive security routing method-RASR of the present invention, the concrete steps of this method are as follows:

[0080] Step 1: The source node sends the data packet

[0081] When a node needs to send data, it becomes a source node, assuming that source node s needs to send data to destination node d. The source node first constructs a data packet, and then selects a neighbor node to send the data packet according to the node reliability evaluation value.

[0082] 1). Construct data package

[0083] The source node s constructs a data packet PKT(s, d, c, e, M, f): first generates a random number r; calculates the hash value h(h(r)) as the identifier c of the data packet; uses the random number r uses the public key K of the destination node d d Encrypt to get e, namely Use the random number r as the key to perform symmetric encryption on the valid data to be sent to obtain M; calculate the hash val...

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Abstract

The invention discloses a mobile AD Hoc network self-adapting secure routing method based on reliability. The method comprises the following four major steps: step I, a source node transmits data packets; step II, an intermediate node forwards the data packets; step III, a destination node receives the data packets; and step IV, the data packets are transmitted and confirmed and reliability is updated. The method integrates route discovery and data transmission into a whole process, each node evaluates the reliability of adjacent nodes reaching the destination node through a response feedbackmechanism, and independently makes a route decision according to reliability evaluation level, so that unreliable nodes are avoided and a reliable path is selected from a plurality of alternative paths, the method solves secure and reliable data transmission and symmetrical secret key transmission while solving secure routing discovery problem, and improves the security and the adaptability of the network. Compared with an existing AD Hoc network routing method, the method can resist attack to a greater extent on the basis that higher expense is not needed, still has good restorability when anetwork size is changed, nodes rapidly moves and even attack in a large scope exists and error of nodes exists, and is applicable to large-scale network with rapidly moving nodes. The method has a higher practical value and a wide application prospect in the technical field of mobile AD Hoc network security.

Description

(1) Technical field [0001] The invention relates to a reliability-based mobile Ad Hoc network adaptive security routing method-RASR (Reliability-based Adaptive Security Routing), which mainly solves the security routing problem of the mobile Ad Hoc network and belongs to the technical field of communication network security. (2) Background technology [0002] The mobile Ad Hoc network is a temporary multi-hop autonomous system composed of many mobile nodes. The mobile node has the functions of router and host at the same time. Under the mutual cooperation of nodes, two nodes that cannot communicate directly can communicate. Provide users with a network communication support environment without the support of fixed infrastructure. However, mobile Ad Hoc networks are vulnerable to serious security attacks. If there is no proper security mechanism, attackers can invade or even control the network; interfere or even completely block communication. [0003] Secure routing ensure...

Claims

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Application Information

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IPC IPC(8): H04W12/06H04W40/02H04W84/18H04W12/0431
Inventor 刘建伟刘靖郑志明毛剑修春娣尚涛陈建华陈庆余
Owner BEIHANG UNIV
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