Collusion Attacks to Tanaka's Corrected ID-Based Non-interactive Key Sharing Scheme
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概要
- 論文の詳細を見る
In 2006, Tanaka has proposed an efficient variant of Maurer-Yacobis identity-based non-interactive key sharing scheme. In Tanakas scheme, the computational complexity to generate each users secret information is much smaller than that of Maurer-Yacobis scheme. Tanakas original key sharing scheme does not provide completeness, and so Tanaka has corrected the original scheme to provide completeness. In this paper, we show that Tanakas corrected key sharing scheme is not secure against collusion attacks. That is, two users can collaborate to factorize a system modulus with their secret information and thus break the key sharing scheme.
- （社）電子情報通信学会の論文
- 2009-03-01
著者
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Lee Dong
Graduate School of Information Management & Security, CIST, Korea University
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KWON Jeong
Graduate School of Information Security CIST, Korea university
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Kwon Jeong
Graduate School Of Information Security Cist Korea University
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Lee Dong
Etri (electronics And Telecommunications Research Institute)
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Kwon Jeong
Information Security Group Samsung Sds
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Lee Dong
Graduate School Of Information & Communication Ajou University
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JEONG Ik
Graduate School of Information Management & Security, CIST, Korea University
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Jeong Ik
Graduate School Of Information Management & Security Cist Korea University
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