| Presentation | 2000/11/6 Improving Digital signature schemes by use of witnesses C.A. Nascimento Anderson, Mueller-Quade J., H. Imai, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We improve computational secure digital signature schemes by using public verifiers(witnesses). An honest party can commit some information to a witness' group and, latter on, call them up to prove his honesty. In order to improve the security and robustness of the scheme, we propose a protocol that ensures the anonymity of the witnesses as well as of the person using the witnesses' service. To achieve this feature, we use the concept of an anonymous channel, where the sender of a message is only allowed to know that the receiver belongs to a specific group and the receiver is ignorant about the identity of the sender. This solution can be applied to the notary problem as well. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Digital Signatures / Multiparty Protocols / Anonymity / Crowds |
| Paper # | ISEC2000-89 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2000/11/6(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 | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improving Digital signature schemes by use of witnesses |
| Sub Title (in English) | |
| Keyword(1) | Digital Signatures |
| Keyword(2) | Multiparty Protocols |
| Keyword(3) | Anonymity |
| Keyword(4) | Crowds |
| 1st Author's Name | C.A. Nascimento Anderson |
| 1st Author's Affiliation | Institute of Industrial Science, University of Tokyo() |
| 2nd Author's Name | Mueller-Quade J. |
| 2nd Author's Affiliation | Institute of Industrial Science, University of Tokyo |
| 3rd Author's Name | H. Imai |
| 3rd Author's Affiliation | Institute of Industrial Science, University of Tokyo |
| Date | 2000/11/6 |
| Paper # | ISEC2000-89 |
| Volume (vol) | vol.100 |
| Number (no) | 421 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |