A Data Forwarding Method with Collusion Attack Detection
A technology of attack detection and forwarding method, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of ignoring malicious node attack connections, etc., and achieve the effect of improving data delivery efficiency, reliable transmission, and reducing communication overhead
Active Publication Date: 2020-08-04
CHONGQING UNIV OF POSTS & TELECOMM
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[0004] In all the above-mentioned schemes, the research on social trust only considers the social connection between nodes, ignoring the internal factors that lead to differences in node behavior caused by social relations, and ignoring the connection between malicious nodes when they attack. Whether a node is a malicious node is also inseparable from the relationship between nodes
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[0027] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.
[0028] The technical scheme that the present invention solves the problems of the technologies described above is:
[0029] Firstly, according to the rules of social activities of nodes, the encounter frequency sequence of nodes M={m 1 ,m 2 ,... m 2K}. The encounter frequency sequence records the number of encounters between nodes in different time periods, and describes the changing trend and law of the connection relationship between nodes.
[0030] Then, gather the nodes with the "connection" relationship in the same period to build a transient trust subnetwork of nodes is the aggregated node set, the parameter Θ={T,B} is used to quantitatively describe the connection relationship, T ij To evalua...
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The invention relates to a data forwarding method with collusion attack detection, and belongs to the technical field of trust management of opportunity networks. Aiming at the problem that a collusion attack of a malicious node of the opportunity network destroys normal transmission of data, the data forwarding method with collusion attack detection is provided. A transient trust sub-network is built by using a node encounter frequency sequence learned by historical interaction state information of the node, and thus a time evolution trend of a compact degree of a relation between the nodes is assessed. Possible behaviors of the node are speculated based on the transient trust sub-network between the nodes, so that the malicious collusion attack is defended by detecting the abnormal node and a frequent interaction sub-set of the abnormal node, and thus the collaboration state and collaboration ability of the node are assessed to reasonably select the relay node, and efficient and reliable data transmission is achieved.
Description
technical field [0001] The invention belongs to the field of opportunistic network trust management, in particular to a data forwarding method with collusion attack detection. Background technique [0002] The wide application of mobile communication devices (smart phones, tablet computers) has promoted the rapid development of Mobile Ad Hoc Network (MANET). MANET requires the establishment of a continuous path from the source node to the destination node before data transmission. However, in actual application scenarios, problems such as node mobility and limited communication capabilities lead to frequent breakage of end-to-end paths. As a special application of MANET, the opportunistic network transforms the mobility of nodes into opportunities, uses the communication opportunities generated by node mobility, and realizes data transmission more flexibly in the "store-carry-forward" communication mode. During data transmission, nodes cooperate with each other to forward ...
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IPC IPC(8): H04L29/06H04L12/721
CPCH04L45/26H04L63/1408H04L63/20
Inventor 杨静李无忧吴大鹏王汝言闫俊杰李鹏程
Owner CHONGQING UNIV OF POSTS & TELECOMM