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An Unconditionally Secure Authentication Code for Multi-Source Network Coding

Author: YangHong
Tutor: YangMingXi
School: Wuhan University of Technology
Course: Computer Science and Technology
Keywords: Network coding Pollution attack Multi-source Authentication Code
CLC: TP393.08
Type: Master's thesis
Year: 2011
Downloads: 60
Quote: 0
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Abstract


Network coding theory, network coding its can increase network bandwidth utilization, enhanced network robustness and the advantages of extensive research and application. However, network coding is very vulnerable to pollution attacks. Security in the increasingly rapid development of science and technology today, it is particularly important. Network coding to maximize the utilization of network resources at the same time, we must ensure the secure transmission of network packets and forwards. Research, most secure network coding is based on the case of the single source of network coding, i.e. the network has only one source node. Is well known, the situation is more common in the actual network, a plurality of source nodes. Multi-source network coding is even more valuable and meaningful. This paper presents a new unconditionally secure authentication code for multi-source network coding (Unconditionally Secure Authentication Code for Multi-Source Network Coding can be credited for USAC-mulsNC), and before many assumptions based on the mathematical problems of security The network coding is different the USAC-mulsNC mechanism is based on information theory strength, i.e. unlimited computing resources attack is robust, it is unconditional security; while the mechanism is applicable to multi-source network coding scenario. K-1-conspirators are robust it the network external attacks within the network by its efficiency and security analysis, can be learned. , Using the authentication code in the multi-source network coding, in the case of the need for decoding the relay nodes can confirm that the packet integrity and packet sources, detection and authentication failure packet is discarded, thereby preventing pollution attacks, to achieve safe network coding. The innovation of this paper is mainly reflected in the following three aspects: (1) for the first time one applies to the case of multi-source network coding unconditionally secure authentication code the mechanism (USAC-mulsNC mechanism), and secure network based on computational assumptions encoding different authentication mechanism, the mechanism is based on information theory intensity, so as to guarantee the integrity and authenticity of the packets in the network coding process. (2) in the text of the mechanism, the efficiency and security analysis, known to the authentication mechanism of the network external or internal attack have strong robustness against pollution attack effectively, to achieve the security of message transmission and forwarding. (3) in the text of the mechanism, and other security authentication mechanism comparative analysis, draw the mechanism not only to support the multi-source network coding situations, and because it is based on information theory intensity attacks have unlimited computing resources is immune that is able to withstand brute-force attacks.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Computer Network Security
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