| Presentation | 2007-07-20 A Study on the Tews-Weinmann-Pyshkin Attack against WEP Yuko OZASA, Yoshiaki FUJIKAWA, Toshihiro OHIGASHI, Hidenori KUWAKADO, Masakatu MORII, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Tews, Weinmann, and Phshkin have shown a key recovery attack against WEP (the TWP attack), which is the modification of Klein's key recovery attack against RC4. The TWP attack allows an attacker to recover a 104-bit secret key from 40,000 captured packets with probability 0.5 and from 85,000 captured packets with probability 0.95. In this paper, we improve the probability of recovering the key when the number of captured packets is less, efficiently. For example, if 10,000 packets are captured, then the probability of recovering it is three times as large as than that of the TWP attack. If 20,000 packets are done, then it is twice as large as than that of the TWP attack. Our attack can find the secret key in a few seconds. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | WEP / key recovery attack / RC4 |
| Paper # | ISEC2007-47 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2007/7/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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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) | A Study on the Tews-Weinmann-Pyshkin Attack against WEP |
| Sub Title (in English) | |
| Keyword(1) | WEP |
| Keyword(2) | key recovery attack |
| Keyword(3) | RC4 |
| 1st Author's Name | Yuko OZASA |
| 1st Author's Affiliation | Graduate School of Engineering, Kobe University() |
| 2nd Author's Name | Yoshiaki FUJIKAWA |
| 2nd Author's Affiliation | Guraduate School of Science and Technology, Kobe University |
| 3rd Author's Name | Toshihiro OHIGASHI |
| 3rd Author's Affiliation | Guraduate School of Science and Technology, Kobe University |
| 4th Author's Name | Hidenori KUWAKADO |
| 4th Author's Affiliation | Graduate School of Engineering, Kobe Universit |
| 5th Author's Name | Masakatu MORII |
| 5th Author's Affiliation | Graduate School of Engineering, Kobe Universit |
| Date | 2007-07-20 |
| Paper # | ISEC2007-47 |
| Volume (vol) | vol.107 |
| Number (no) | 141 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |