Proxiable Designated Verifier Signature

• Item type: Journal(1)
• 公開日: 2011-09-15
• タイトル: Proxiable Designated Verifier Signature
• タイトル / 言語: en
• タイトル: Proxiable Designated Verifier Signature
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: 特集：人と共存するコンピュータセキュリティ技術
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• 著者所属: University of Electro-Communications／Presently with FUJITSU LABORATORIES LTD.
• 著者所属: The University of Tokyo
• 著者所属: NTT Information Sharing Platform Laboratories
• 著者所属: University of Electro-Communications
• 著者所属(英): en
• 著者所属(英): University of Electro-Communications / Presently with FUJITSU LABORATORIES LTD.
• 著者所属(英): en
• 著者所属(英): The University of Tokyo
• 著者所属(英): en
• 著者所属(英): NTT Information Sharing Platform Laboratories
• 著者所属(英): en
• 著者所属(英): University of Electro-Communications
• 著者名: Mebae, Ushida; Yutaka, Kawai; Kazuki, Yoneyama; Kazuo, Ohta
• 著者名(英): Mebae, Ushida; Yutaka, Kawai; Kazuki, Yoneyama; Kazuo, Ohta
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: Designated Verifier Signature (DVS) guarantees that only a verifier designated by a signer can verify the “validity of a signature”. In this paper, we propose a new variant of DVS; Proxiable Designated Verifier Signature (PDVS) where the verifier can commission a third party (i.e., the proxy) to perform some process of the verification. In the PDVS system, the verifier can reduce his computational cost by delegating some process of the verification without revealing the validity of the signature to the proxy. In all DVS systems, the validity of a signature means that a signature satisfies both properties that (1) the signature is judged “accept” by a decision algorithm and (2) the signature is confirmed at it is generated by the signer. So in the PDVS system, the verifier can commission the proxy to check only the property (1). In the proposed PDVS model, we divide verifier's secret keys into two parts; one is a key for performing the decision algorithm, and the other is a key for generating a dummy signature, which prevents a third party from convincing the property (2). We also define security requirements for the PDVS, and propose a PDVS scheme which satisfies all security requirements we define.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: Designated Verifier Signature (DVS) guarantees that only a verifier designated by a signer can verify the “validity of a signature”. In this paper, we propose a new variant of DVS; Proxiable Designated Verifier Signature (PDVS) where the verifier can commission a third party (i.e., the proxy) to perform some process of the verification. In the PDVS system, the verifier can reduce his computational cost by delegating some process of the verification without revealing the validity of the signature to the proxy. In all DVS systems, the validity of a signature means that a signature satisfies both properties that (1) the signature is judged “accept” by a decision algorithm and (2) the signature is confirmed at it is generated by the signer. So in the PDVS system, the verifier can commission the proxy to check only the property (1). In the proposed PDVS model, we divide verifier's secret keys into two parts; one is a key for performing the decision algorithm, and the other is a key for generating a dummy signature, which prevents a third party from convincing the property (2). We also define security requirements for the PDVS, and propose a PDVS scheme which satisfies all security requirements we define.
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AN00116647
• 書誌情報: 情報処理学会論文誌; 巻 52, 号 9, p. 2641-2651, 発行日 2011-09-15
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-7764