| Presentation | 2007-03-16 Share selectable secret sharing scheme on inefficiency concentrated for particular user Keit EMURA, Akito NOMURA, Masakazu SOSHI, Atsuko MIYAJI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | On Shamir threshold scheme, a participant's share is randomly given. The usability can be improved if share is selectable because participant can memorize easily. In addition, it is preferable to decrease information that the participant manages from the users' viewpoint. In this paper, we propose the new secret sharing scheme that divides the participants into the groups of a special class called "trusted participant" and regular participants, and realizes the efficiency to regular participants at the cost of trusted participants. For regular participants, the proposed scheme is perfect secret sharing scheme and the number of shares is one regardless of access structure. In addition, a regular participant's share, which doesn't depend on secret value and access structure. Moreover, we evaluate the proposed scheme using the average information rate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | secret sharing scheme / access structure / information rate / average information rate |
| Paper # | IT2006-114,ISEC2006-169,WBS2006-111 |
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| Conference Information | |
| Committee | IT |
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| Conference Date | 2007/3/9(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 Theory (IT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Share selectable secret sharing scheme on inefficiency concentrated for particular user |
| Sub Title (in English) | |
| Keyword(1) | secret sharing scheme |
| Keyword(2) | access structure |
| Keyword(3) | information rate |
| Keyword(4) | average information rate |
| 1st Author's Name | Keit EMURA |
| 1st Author's Affiliation | School of Information Science Japan Advanced Institute of Science and Technology() |
| 2nd Author's Name | Akito NOMURA |
| 2nd Author's Affiliation | Graduate School of Natural Science and Technology, Kanazawa University |
| 3rd Author's Name | Masakazu SOSHI |
| 3rd Author's Affiliation | School of Information Science Japan Advanced Institute of Science and Technology |
| 4th Author's Name | Atsuko MIYAJI |
| 4th Author's Affiliation | School of Information Science Japan Advanced Institute of Science and Technology |
| Date | 2007-03-16 |
| Paper # | IT2006-114,ISEC2006-169,WBS2006-111 |
| Volume (vol) | vol.106 |
| Number (no) | 595 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |