| Presentation | 2006-12-13 A Proposal of a Group Siganture Scheme with Membership Revocation Using Prime Numbers and Its Implementation Naoto HAMADA, Takuya NAKAYAMA, Toru NAKANISHI, Nobuo FUNABIKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Group signature schemes with membership revocation have been intensively researched. In this paper, we propose a new group signature scheme where the computational cost for signing/verification is lower than an existing scheme without the update of signers' private keys. In the proposed scheme, a group manager issues the membership certificate with a unique prime number to every member of the group. A revocation of a membership certificate is performed by using this prime number. To show the practicality of the proposed scheme, we implemented the scheme on a PC, and measured the execution time. In a group with 1000 members, the signature signing/verification needs about 1.3 seconds. Since this time is less than half of the time that needed in the existing scheme, the practicality of the proposed scheme is sufficiently shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | group signatures / revocation / privacy protection / prime numbers |
| Paper # | ISEC2006-109 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2006/12/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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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) | A Proposal of a Group Siganture Scheme with Membership Revocation Using Prime Numbers and Its Implementation |
| Sub Title (in English) | |
| Keyword(1) | group signatures |
| Keyword(2) | revocation |
| Keyword(3) | privacy protection |
| Keyword(4) | prime numbers |
| 1st Author's Name | Naoto HAMADA |
| 1st Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University() |
| 2nd Author's Name | Takuya NAKAYAMA |
| 2nd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| 3rd Author's Name | Toru NAKANISHI |
| 3rd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| 4th Author's Name | Nobuo FUNABIKI |
| 4th Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| Date | 2006-12-13 |
| Paper # | ISEC2006-109 |
| Volume (vol) | vol.106 |
| Number (no) | 411 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |