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Secure Error-Correction Network Coding |
Zhou Ye-jun; Li Hui; Ma Jian-feng |
Key lab of CNIS Ministry of Education Xidian University, Xi'an, 710071, Shaanxi, China |
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Abstract In this paper, a secure error-correcting network coding is proposed using a metric on the space of all subspaces of a message vector space. It shows that a minimum distance decoder for this metric can correct errors of a limited dimension. On the other hand, when the number of channels the adversary can eavesdrop on is less than the max-flow of a network, the adversary can not get any information about the source. Furthermore, when the source and the destination shares a Pseudo-Random number generator and a secret key, the coding scheme can prevent adversary who can eavesdrop on all the channels of a network.
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Received: 06 October 2008
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