| Presentation | 2005-05-18 Ring Signature Schemes with Innocence Assertion Revisited (Part 2) : Group Signatures Strengthening the Signers' Privacy Yuichi KOMANO, Kazuo OHTA, Atsushi SHIMBO, Shinichi KAWAMURA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper reconsiders the ring signature scheme with innocence assertion [10] as a group signature scheme. The ring signature scheme with innocence assertion differs from a group signature scheme in which the former allows a signer to decide a member of group dynamicaly, and in which the former does not need a group manager (electronic big brother); hereafter, we call the former a democratic group signature scheme (DGS scheme). This paper first discuss the security model of DGS scheme and proves the security of (modified) scheme under the random oracle model. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | group signatures / ring signatures / DLP / CDH/DDH problems / random oracle model |
| Paper # | ISEC2005-2 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2005/5/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (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) | Ring Signature Schemes with Innocence Assertion Revisited (Part 2) : Group Signatures Strengthening the Signers' Privacy |
| Sub Title (in English) | |
| Keyword(1) | group signatures |
| Keyword(2) | ring signatures |
| Keyword(3) | DLP |
| Keyword(4) | CDH/DDH problems |
| Keyword(5) | random oracle model |
| 1st Author's Name | Yuichi KOMANO |
| 1st Author's Affiliation | Toshiba Corporation() |
| 2nd Author's Name | Kazuo OHTA |
| 2nd Author's Affiliation | The University of Electro-Communications |
| 3rd Author's Name | Atsushi SHIMBO |
| 3rd Author's Affiliation | Toshiba Corporation |
| 4th Author's Name | Shinichi KAWAMURA |
| 4th Author's Affiliation | Toshiba Corporation |
| Date | 2005-05-18 |
| Paper # | ISEC2005-2 |
| Volume (vol) | vol.105 |
| Number (no) | 51 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |