| Presentation | 2021-01-29 Retrieval in Confined Decodable Secret Sharing Scheme by Comparison of Difference in Coefficient between Shares and Its Security Evaluation Tomo Nakamura, Ryohei Yoshitomi, Eiji Fukutomi, Masahiro Fukumoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In Kochi Prefecture, an effort is underway to back up medical data such as electronic medical records to remote locations in preparation for wide-area disasters, and to utilize the data for medical treatment during disasters.In the event of a disaster, resources such as networks and power supplies may be in short supply, making it difficult to communicate all medical data.In addition, for quick medical treatment, not all medical data is necessarily needed if there are data such as medication history and allergy information.Therefore, a partially recoverable secret distributed system was proposed.In this system, only a part of the distributed data can be decoded.However, the amount of computation required to recover the data is large, and it is expected to take a long time.To improve retrieval time, we had proposed a retrieval method without decoding distributed information.In this paper, we have shown a method to estimate identification information under specific conditions in proposed method.As an evaluation, we have described a method to prevent leakage identification information under those conditions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | secret sharing scheme / confined decoding / retrieval |
| Paper # | IA2020-34 |
| Date of Issue | 2021-01-22 (IA) |
| Conference Information | |
| Committee | IA |
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| Conference Date | 2021/1/29(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Senser Network, IoT, M2M, etc. |
| Chair | Hiroyuki Osaki(Kwansei Gakuin Univ.) |
| Vice Chair | Rei Atarashi(IIJ) / Toru Kondo(Hiroshima Univ.) / Hiroshi Yamamoto(Ritsumeikan Univ.) |
| Secretary | Rei Atarashi(Kwansei Gakuin Univ.) / Toru Kondo(KDDI Research) / Hiroshi Yamamoto(NEC) |
| Assistant | Kenji Ohira(Osaka Univ.) / Daiki Nobayashi(Kyushu Inst. of Tech.) / Ryohei Banno(Kogakuin Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Internet Architecture |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Retrieval in Confined Decodable Secret Sharing Scheme by Comparison of Difference in Coefficient between Shares and Its Security Evaluation |
| Sub Title (in English) | |
| Keyword(1) | secret sharing scheme |
| Keyword(2) | confined decoding |
| Keyword(3) | retrieval |
| 1st Author's Name | Tomo Nakamura |
| 1st Author's Affiliation | Kochi University of Technology(KUT) |
| 2nd Author's Name | Ryohei Yoshitomi |
| 2nd Author's Affiliation | Kochi University of Technology(KUT) |
| 3rd Author's Name | Eiji Fukutomi |
| 3rd Author's Affiliation | Kochi University of Technology(KUT) |
| 4th Author's Name | Masahiro Fukumoto |
| 4th Author's Affiliation | Kochi University of Technology(KUT) |
| Date | 2021-01-29 |
| Paper # | IA2020-34 |
| Volume (vol) | vol.120 |
| Number (no) | IA-356 |
| Page | pp.pp.21-26(IA), |
| #Pages | 6 |
| Date of Issue | 2021-01-22 (IA) |