| Presentation | 2008-02-29 Secret Key Agreement by Reliability Information of Signals in Gaussian Maurer's Model Masashi NAITO, Shun WATANABE, Ryutaroh MATSUMOTO, Tomohiko UYEMATSU, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We consider the problem of secret key agreement in Gaussian Maurer's Model. In Gaussian Maurer's model, legitimate receivers, Alice and Bob, and the wire-tapper, Eve, recieve signals randomly generated by a satellite through three independent memoryless Gaussian channels respectively. Then Alice and Bob generate a common secret key from their received signals. In this model, we propose a protocol for generating a common secret key by using the result of soft-decision of Alice and Bob's received signals. Then, we calculate a lower bound on the secret key rate in our proposed protocol. As a result of comparison with the protocol that only uses hard-decision, we found that the higher rate is obtained by using our protocol. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Gaussian channel / Maurer's model / satellite model / secret key agreement / secret key rate / soft-decision |
| Paper # | IT2007-54,ISEC2007-151,WBS2007-85 |
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| Conference Information | |
| Committee | WBS |
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| Conference Date | 2008/2/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Wideband System(WBS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Secret Key Agreement by Reliability Information of Signals in Gaussian Maurer's Model |
| Sub Title (in English) | |
| Keyword(1) | Gaussian channel |
| Keyword(2) | Maurer's model |
| Keyword(3) | satellite model |
| Keyword(4) | secret key agreement |
| Keyword(5) | secret key rate |
| Keyword(6) | soft-decision |
| 1st Author's Name | Masashi NAITO |
| 1st Author's Affiliation | Department of Communications and Integrated Systems() |
| 2nd Author's Name | Shun WATANABE |
| 2nd Author's Affiliation | Department of Communications and Integrated Systems |
| 3rd Author's Name | Ryutaroh MATSUMOTO |
| 3rd Author's Affiliation | Department of Communications and Integrated Systems |
| 4th Author's Name | Tomohiko UYEMATSU |
| 4th Author's Affiliation | Department of Communications and Integrated Systems |
| Date | 2008-02-29 |
| Paper # | IT2007-54,ISEC2007-151,WBS2007-85 |
| Volume (vol) | vol.107 |
| Number (no) | 503 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |