| Presentation | 2008-09-12 Reduction of Public-Key Size in a Revocable Group Signature Scheme with Constant Costs for Signing and Verifying Hiroki FUJII, Yuta HIRA, Toru NAKANISHI, Nobuo FUNABIKI, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Group signature scheme is the digital signature scheme enhancing the privacy of the user. We proposed a revocable scheme where signing and verifying require only O(1) costs, while various schemes were previously proposed. However, the scheme has a problem that the public key size is O(N). In this paper, we extend the scheme to reduce the public key size into O(√N). In addition, we implement it to confirm the reduction of the size and show that the scheme works at practical execution times. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Group signature / anonymity / bilinear map / pairing |
| Paper # | ISEC2008-68 |
| Date of Issue |
| Conference Information | |
| Committee | ISEC |
|---|---|
| Conference Date | 2008/9/5(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Information Security (ISEC) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Reduction of Public-Key Size in a Revocable Group Signature Scheme with Constant Costs for Signing and Verifying |
| Sub Title (in English) | |
| Keyword(1) | Group signature |
| Keyword(2) | anonymity |
| Keyword(3) | bilinear map |
| Keyword(4) | pairing |
| 1st Author's Name | Hiroki FUJII |
| 1st Author's Affiliation | Graduate School of Natural Science and Technology, Okayama Univercity() |
| 2nd Author's Name | Yuta HIRA |
| 2nd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama Univercity |
| 3rd Author's Name | Toru NAKANISHI |
| 3rd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama Univercity |
| 4th Author's Name | Nobuo FUNABIKI |
| 4th Author's Affiliation | Graduate School of Natural Science and Technology, Okayama Univercity |
| Date | 2008-09-12 |
| Paper # | ISEC2008-68 |
| Volume (vol) | vol.108 |
| Number (no) | 207 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |