| Presentation | 2005-03-18 On Coding Theorems for a General Wiretap Channel Hiroki KOGA, Naoki SATO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper is concerned with coding theorems for a generalized wiretap channel. In the problem of the wiretap channel it is crucial to characterize the secrecy capacity, i.e., the maximum achievable rate of information securely transmitted from a sender to a receiver in the presence of a wiretapper. In our model channels are not restricted to memoryless channels. In fact, channels can be any discrete channels. We first define the secrecy capacity C_s and characterize C_s from the information-spectrum approach. We give a new upper bound of C_s and explore conditions under which the obtained upper bound coincides with a known lower bound [5]. We also discuss coding theorems on the generalized wiretap channel under a weakened criterion on secrecy. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wiretap channel / coding theorem / general channel / information-spectrum |
| Paper # | IT2004-74,ISEC2004-130,WBS2004-189 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2005/3/11(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) | On Coding Theorems for a General Wiretap Channel |
| Sub Title (in English) | |
| Keyword(1) | Wiretap channel |
| Keyword(2) | coding theorem |
| Keyword(3) | general channel |
| Keyword(4) | information-spectrum |
| 1st Author's Name | Hiroki KOGA |
| 1st Author's Affiliation | Graduate School of Systems and Information Engineering, University of Tsukuba() |
| 2nd Author's Name | Naoki SATO |
| 2nd Author's Affiliation | Master's Program in Science and Engineering, University of Tsukuba |
| Date | 2005-03-18 |
| Paper # | IT2004-74,ISEC2004-130,WBS2004-189 |
| Volume (vol) | vol.104 |
| Number (no) | 732 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |