An anonymous communication method of wmn based on network coding

Abstract

The invention provides a WMN anonymous communication method based on network coding, which includes: system initialization; initial routing establishment; node i in the network determines whether it is a forwarding node, a sink node or a non-forwarding node; if it is a forwarding node, it stores the session flow identifier to Store the list and forward the initial route establishment packet; if it is a sink node, store the session flow identifier and the shared key used for substitution encryption and decryption between the source node and the sink node, and forward the initial route establishment packet; if it is a non-forwarding node, forward it directly Initial route establishment packet; source encoding; the source node attaches the session flow identifier to the header of the encoded packet, encrypts the session flow identifier using its own broadcast key, and continues to broadcast these encoded packets until it receives the message confirmation packet. ;Forwarding by forwarding node; decoding by sink node; anonymous message confirmation. The invention organically combines the opportunistic routing protocol with network coding, thereby effectively ensuring the anonymity of both communication parties while improving network throughput.

Description

technical field [0001] The invention belongs to the technical field of network security, in particular to a WMN anonymous communication method based on network coding. Background technique [0002] With the rapid development of wireless communication technology and the rapid popularization of wireless network equipment, people's demand for wireless network is becoming more and more urgent. As an ideal technology to solve the "last mile" access problem, Wireless Mesh Network (WMN) has the advantages of self-organization, simple configuration, strong scalability, strong robustness, and low deployment cost. The mainstream technology choice for broadband access to the backbone network. As a wireless multi-hop network, WMN provides convenience for attacks due to the openness of its transmission medium, and security has become a bottleneck restricting the rapid popularization of WMN. In addition, as people pay more and more attention to personal privacy protection, anonymous com...

AI Technical Summary

Problems solved by technology

However, the operation process based on homomorphic encryption is more complicated, and the calculation overhead is relatively large.

[0004] It can be seen that although these solutions can solve the problem of anonymous communication in wireless networks, they have the characteristics of high computational overhead and low network throughput in the actual application process, which is not conducive to large-scale promotion in real environments.

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