Presentation | 2005-03-18 Unconditionally Secure Group Signature Schemes Takenobu SEITO, Kazuyuki KINOSE, Junji SHIKATA, Tsutomu MATSUMOTO, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | A group signature scheme introduced by Chaum and Van Heyst allow a group member to sign message anonymously on behalf of the group. However, in the case of a dispute, the identity of a signer can be revealed by a group maneger. A group signature schemes have mainly been studied from a viewpoint of computational security setting so far. In this paper, we study group signatures with the viewpoint of unconditionally secure setting. Especially, we newly introduce a model and security notions of unconditionally secure group signatures (USGS, for short). And, we formulate our security notions. Furthermore, we propose a construction method for USGS that are provably secure in our strong security notions. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | group signature schemes / unconditionally security / information-theoretic security |
Paper # | IT2004-72,ISEC2004-128,WBS2004-187 |
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Conference Information | |
Committee | ISEC |
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Conference Date | 2005/3/11(1days) |
Place (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Information Security (ISEC) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Unconditionally Secure Group Signature Schemes |
Sub Title (in English) | |
Keyword(1) | group signature schemes |
Keyword(2) | unconditionally security |
Keyword(3) | information-theoretic security |
1st Author's Name | Takenobu SEITO |
1st Author's Affiliation | Graduate School of Environment and Information Sciences, Yokohama National University() |
2nd Author's Name | Kazuyuki KINOSE |
2nd Author's Affiliation | Graduate School of Environment and Information Sciences, Yokohama National University |
3rd Author's Name | Junji SHIKATA |
3rd Author's Affiliation | Graduate School of Environment and Information Sciences, Yokohama National University |
4th Author's Name | Tsutomu MATSUMOTO |
4th Author's Affiliation | Graduate School of Environment and Information Sciences, Yokohama National University |
Date | 2005-03-18 |
Paper # | IT2004-72,ISEC2004-128,WBS2004-187 |
Volume (vol) | vol.104 |
Number (no) | 732 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |