The Blind-X3DH Authenticated Key Exchange

• Item type: Symposium(1)
• 公開日: 2022-10-17
• タイトル: The Blind-X3DH Authenticated Key Exchange
• タイトル / 言語: en
• タイトル: The Blind-X3DH Authenticated Key Exchange
• 言語: eng
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_5794
• 資源タイプ: conference paper
• 著者所属: Graduate School of Engineering, Osaka University
• 著者所属: Graduate School of Engineering, Osaka University／JAIST
• 著者所属(英): en
• 著者所属(英): Graduate School of Engineering, Osaka University
• 著者所属(英): en
• 著者所属(英): Graduate School of Engineering, Osaka University / JAIST
• 著者名: Kaiming, Chen; Atsuko, Miyaji
• 著者名(英): Kaiming, Chen; Atsuko, Miyaji
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: The core of Signal, X3DH and Double Ratchet, is secure based on end-to-end encryption and applied to several applications. However, its quantization just regards the user's public key as his identity directly. The authentication of this identity needs to be carried out by a trusted third party, which will affect some security features such as deniability. We introduce a certificate system newly which can verify identities, and ensure the protocol's anonymity and deniability. We also give a new protocol Blind-X3DH based on RLWE and our new certificate system.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: The core of Signal, X3DH and Double Ratchet, is secure based on end-to-end encryption and applied to several applications. However, its quantization just regards the user's public key as his identity directly. The authentication of this identity needs to be carried out by a trusted third party, which will affect some security features such as deniability. We introduce a certificate system newly which can verify identities, and ensure the protocol's anonymity and deniability. We also give a new protocol Blind-X3DH based on RLWE and our new certificate system.
• 書誌情報: コンピュータセキュリティシンポジウム2022論文集; p. 591-597, 発行日 2022-10-17
• 出版者 / 言語: ja
• 出版者: 情報処理学会