More Efficient VLR Group Signature Satisfying Exculpability

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概要

• 論文の詳細を見る

• In this letter, we improve NF07 (Nakanishi and Funabiki) VLR group signature scheme such that it satisfies exculpability and has lower computation costs. In the proposed scheme, a group member generates his own private key together with the group manager in order to realize exculpability while the signature size is not made longer. Also, a new revocation check method is proposed at the step of verifying, and the computation costs of verifying are independent of the number of the revoked members, while they are linear with the number of the revoked members in the original scheme. Thus, the proposed scheme is more efficient than the original scheme and can be applicable to mobile environments such as IEEE 802.1x.

• （社）電子情報通信学会の論文
• 2008-07-01

著者

• Sun Rong

  Isn National Key Lab. Xidian University

• ZHANG Jingliang

  ISN National Key Lab., Xidian University

• MA Lizhen

  Department of Physics, Ocean University of China

• WANG Yumin

  ISN National Key Lab., Xidian University

• Ma Lizhen

  Department Of Physics Ocean University Of China

• Wang Yumin

  Isn National Key Lab. Xidian University

• Zhang Jingliang

  Isn National Key Lab. Xidian University

• MA Lizhen

  Department of Food Science, Tianjin Agricultural University

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