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Vulnerability of MRD-Code-based Universal Secure Network Coding against Stronger Eavesdroppers

Eitaro SHIOJI, Ryutaroh MATSUMOTO, Tomohiko UYEMATSU

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Summary :

Silva et al. proposed a universal secure network coding scheme based on MRD codes, which can be applied to any underlying network code. This paper considers a stronger eavesdropping model where the eavesdroppers possess the ability to re-select the tapping links during the transmission. We give a proof for the impossibility of attaining universal security against such adversaries using Silva et al.'s code for all choices of code parameters, even with a restricted number of tapped links. We also consider the cases with restricted tapping duration and derive some conditions for this code to be secure.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E93-A No.11 pp.2026-2033
Publication Date
2010/11/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E93.A.2026
Type of Manuscript
Special Section PAPER (Special Section on Information Theory and Its Applications)
Category
Cryptography and Information Security

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