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Security Random network Coding Model Against Byzanitine Attck Based on CBC Research and Design

Author: ZhangBingTao
Tutor: FengTao
School: Lanzhou University of Technology
Course: Computer Software and Theory
Keywords: Network Security Byzantine attacks Network coding Cipher Block Chaining S-RBA-RNC model
CLC: TP393.08
Type: Master's thesis
Year: 2011
Downloads: 52
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Abstract

Against Byzantine attack in the network security communication problems, more and more attention of the majority of subjects research workers, and has become a hot research problem. When the network in the presence of such an attack, the attacker not only want to get some useful news and would like to through a variety of means to prevent the communication of both normal communication by adding error message or modify the information in the normal transmission. Therefore, in a large-scale network environment, the Byzantine attack is a serious threat to the security of network data transmission. Byzantine attack the problem in the network, if it relies on traditional cryptographic techniques such as data encryption, Hash functions and message authentication to ensure secure transmission of data, there are some limitations, so look for a safe, efficient data transmission is particularly necessary. The core idea of ??network coding theory routing node in the network to its multiple input messages before forwarding code combinations to achieve the maximum flow minimum cut theorem determine the theoretical maximum throughput, and to improve the throughput of the network channel. However, with the further deepening of the research work, the researchers found that network coding is an effective way to solve the security of network data transmission. From a practical perspective, the linear network coding dynamic topology changes or a large-scale network, practicability is not strong; random network coding the coded coefficients are selected random uniformly from the finite field, the source associated linear encoder The information to be compressed to fit the scene of the network topology changes or larger, and has a strong practical. In view of the above characteristics, traditional CBC (Cipher Block Chaining) with random network coding theory combined to construct a random network coding based on the CBC's anti-Byzantine attack security model (S-RBA-RNC). The main work of this paper is as follows: 1. Based on network coding in the data transfer process at different stages of the special circumstances, defined two different situations Byzantine attack. Attack the case for these two Byzantine conducted a detailed analysis and description. 2 CBC random network coding combining random network coding (S-RBA-RNC) an anti-Byzantine attack security model and prove its correctness and security. Security anti-Byzantine attack random network coding (S-RBA-RNC) model without the sink node for any network topology indefinite computing power of the Byzantine attacker, and the attacker can get the encoding scheme. In the case of the number of channels does not exceed the threshold, the secure random network coding scheme is secure. The analysis shows that the scheme can resist the the two Byzantine attack scenario, compared with previous research worker program, that the program in the Byzantine attacker attack capability, has a better performance aspects of the topology, versatility .

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