| Presentation | 1998/12/10 Multisignature Schemes Using Structured Group ID Hiroshi Doi, Eiji Okamoto, Masahiro Mambo, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose two multisignature schemes suitable for various group structures composed of serial and parallel order. First, we introduce a group identity uniquely decided by the group structure. Next, we propose two multisignature schemes using the group identity and evaluate their security. The first scheme is based on a signature scheme composed of two values, such as EIGamal, Schnorr and DSA. In this scheme, any signer can verify the intermediate signatures but the signature length expands as the number of signers increases. The second scheme is based on RSA. The validity of the multisignature can only be verified after all signers has signed. But it can avoid signature expansion and the signatures for different signing orders can be verified by only one set of verification keys. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multisignature / Group Structure / Group Identity / Signing Order |
| Paper # | ISEC98-53 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 1998/12/10(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 | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multisignature Schemes Using Structured Group ID |
| Sub Title (in English) | |
| Keyword(1) | Multisignature |
| Keyword(2) | Group Structure |
| Keyword(3) | Group Identity |
| Keyword(4) | Signing Order |
| 1st Author's Name | Hiroshi Doi |
| 1st Author's Affiliation | Department of Mathematics, Faculty of Science, Okayama University() |
| 2nd Author's Name | Eiji Okamoto |
| 2nd Author's Affiliation | JAIST(Japan Advanced Institute of Science and Technology) |
| 3rd Author's Name | Masahiro Mambo |
| 3rd Author's Affiliation | Education Center for Information Processing and Graduate School of Information Sciences, Tohoku University |
| Date | 1998/12/10 |
| Paper # | ISEC98-53 |
| Volume (vol) | vol.98 |
| Number (no) | 464 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |