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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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 |
Date of Issue |
Conference Information | |
Committee | ISEC |
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Conference Date | 2008/2/22(1days) |
Place (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) | 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 Tokyo Institute of Technology() |
2nd Author's Name | Shun WATANABE |
2nd Author's Affiliation | Department of Communications and Integrated Systems Tokyo Institute of Technology |
3rd Author's Name | Ryutaroh MATSUMOTO |
3rd Author's Affiliation | Department of Communications and Integrated Systems Tokyo Institute of Technology |
4th Author's Name | Tomohiko UYEMATSU |
4th Author's Affiliation | Department of Communications and Integrated Systems Tokyo Institute of Technology |
Date | 2008-02-29 |
Paper # | IT2007-54,ISEC2007-151,WBS2007-85 |
Volume (vol) | vol.107 |
Number (no) | 501 |
Page | pp.pp.- |
#Pages | 5 |
Date of Issue |