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Member Removal Mechanism for TreeKEM to Deal with Offline Members
https://ipsj.ixsq.nii.ac.jp/records/227053
https://ipsj.ixsq.nii.ac.jp/records/2270536025b766-92ef-4456-8cef-f2fcbc3b9816
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
IPSJ-SPT23052046.pdf (1.8 MB)
2025年7月17日からダウンロード可能です。
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Copyright (c) 2023 by the Information Processing Society of Japan
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| 非会員：¥660, IPSJ:学会員：¥330, SPT:会員：¥0, DLIB:会員：¥0 | ||
| Item type | SIG Technical Reports(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-07-17 | |||||||||
| タイトル | ||||||||||
| タイトル | Member Removal Mechanism for TreeKEM to Deal with Offline Members | |||||||||
| タイトル | ||||||||||
| 言語 | en | |||||||||
| タイトル | Member Removal Mechanism for TreeKEM to Deal with Offline Members | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | CSEC | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_18gh | |||||||||
| 資源タイプ | technical report | |||||||||
| 著者所属 | ||||||||||
| Waseda University | ||||||||||
| 著者所属 | ||||||||||
| Waseda University | ||||||||||
| 著者所属(英) | ||||||||||
| en | ||||||||||
| Waseda University | ||||||||||
| 著者所属(英) | ||||||||||
| en | ||||||||||
| Waseda University | ||||||||||
| 著者名 |
Zihao, Zheng
× Zihao, Zheng
× Kazue, Sako
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| 著者名(英) |
Zihao, Zheng
× Zihao, Zheng
× Kazue, Sako
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| 論文抄録 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | Messaging Layer Security (MLS), developed by IETF-MLS working group, aims to provide end-to-end asynchronous communication for large groups and is recently approved as a new standard. Its core protocol, TreeKEM, is a continuous group key agreement (CGKA) protocol that allows a group of users to build up and update a shared secret, which is used by its upper-protocol (MLS) to provide secure communication. Although TreeKEM has many desirable security features, its security guarantee largely diminishes when a group member is offline, a situation that most security analyses don't consider. This paper evaluates the security issue brought by offline members, defines a corresponding new security goal, and illustrates how TreeKEM can deal with the offline members with a member removal mechanism. | |||||||||
| 論文抄録(英) | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | Messaging Layer Security (MLS), developed by IETF-MLS working group, aims to provide end-to-end asynchronous communication for large groups and is recently approved as a new standard. Its core protocol, TreeKEM, is a continuous group key agreement (CGKA) protocol that allows a group of users to build up and update a shared secret, which is used by its upper-protocol (MLS) to provide secure communication. Although TreeKEM has many desirable security features, its security guarantee largely diminishes when a group member is offline, a situation that most security analyses don't consider. This paper evaluates the security issue brought by offline members, defines a corresponding new security goal, and illustrates how TreeKEM can deal with the offline members with a member removal mechanism. | |||||||||
| 書誌レコードID | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AA12628305 | |||||||||
| 書誌情報 |
研究報告セキュリティ心理学とトラスト（SPT） 巻 2023-SPT-52, 号 46, p. 1-7, 発行日 2023-07-17 |
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| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 2188-8671 | |||||||||
| Notice | ||||||||||
| SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc. | ||||||||||
| 出版者 | ||||||||||
| 言語 | ja | |||||||||
| 出版者 | 情報処理学会 | |||||||||
