| Presentation | 2004-07-21 A Note on Probabilistic Internal-State Reconstruction Method to Stream Ciphers with Time-variant Tables Toshihiro OHIGASHI, Yoshiaki SHIRAISHI, Masakatu MORII, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Internal-state reconstruction method is a method for reconstructing the internal state of stream ciphers with time-variant tables. The key size and the key scheduling algorithm of stream ciphers with time-variant tables do not influence the time-complexity of internal-state reconstruction method. We have already proposed an efficient deterministic internal-state reconstruction method based on a tree-search algorithm. In this paper, we improve the method by applying probabilistic internal-state reconstruction method proposed by Golic. The proposed method is most effective method in the all internal-state reconstruction methods. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | cryptanalysis / stream cipher with time-variant tables / internal-state reconstruction method / probabilistic algorithm / RC4 |
| Paper # | ISEC2004-47 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2004/7/14(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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Note on Probabilistic Internal-State Reconstruction Method to Stream Ciphers with Time-variant Tables |
| Sub Title (in English) | |
| Keyword(1) | cryptanalysis |
| Keyword(2) | stream cipher with time-variant tables |
| Keyword(3) | internal-state reconstruction method |
| Keyword(4) | probabilistic algorithm |
| Keyword(5) | RC4 |
| 1st Author's Name | Toshihiro OHIGASHI |
| 1st Author's Affiliation | Department of Information Science and Intelligent Systems, The University of Tokushima() |
| 2nd Author's Name | Yoshiaki SHIRAISHI |
| 2nd Author's Affiliation | Department of Informatics, Kinki University |
| 3rd Author's Name | Masakatu MORII |
| 3rd Author's Affiliation | Department of Information Science and Intelligent Systems, The University of Tokushima |
| Date | 2004-07-21 |
| Paper # | ISEC2004-47 |
| Volume (vol) | vol.104 |
| Number (no) | 200 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |