| Presentation | 1995/5/12 Security of the Center in Key Distribution Schemes Kaoru Kurosawa, Koji Okada, Keiichi Sakano, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper studies the security of the trusted center in a b-secure t-group key distribution scheme in which the center issues a private information υ_i∈V to each user i based on the center secret s∈S. User i can obtain the common key k∈K with t-1 other users from υ_i so that any dishonest b users cannot learn any key they should not know. First, we show how to distribute the power of the center to m centers so that, even if l-1 centers and b users collaborate, they cannot learn any key that b users should not know. Next, we prove that log_2|S|≥( |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | key distribution scheme / secret sharing / threshold scheme |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 1995/5/12(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 Security (ISEC) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Security of the Center in Key Distribution Schemes |
| Sub Title (in English) | |
| Keyword(1) | key distribution scheme |
| Keyword(2) | secret sharing |
| Keyword(3) | threshold scheme |
| 1st Author's Name | Kaoru Kurosawa |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering, Faculty of Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Koji Okada |
| 2nd Author's Affiliation | Department of Electrical and Electronic Engineering, Faculty of Engineering, Tokyo Institute of Technology |
| 3rd Author's Name | Keiichi Sakano |
| 3rd Author's Affiliation | Matsushita Electric Industrial Co., LTD. |
| Date | 1995/5/12 |
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| Volume (vol) | vol.95 |
| Number (no) | 27 |
| Page | pp.pp.- |
| #Pages | 8 |
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