| Presentation | 2009-11-13 Speeding Up of a Message Falsification Attack on WPA-TKIP Toshihiro OHIGASHI, Yuki OZAWA, Masakatu MORII, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In 2008, Beck and Tews have proposed a message falsification attack on WPA-TKIP. Their attack (called the Beck-Tews attack) works for only wireless LAN products that support IEEE802.11e QoS features. The Beck-Tews attack can recover a MIC key and falsify an encrypted short packet (for example, an ARP packet) with 12-15 minutes. In JWIS2009, we have proposed a new message falsification attack based on the man-in-the-middle attack, and this attack can work for any WPA implementations. Additionally, we reduce the execution time of our attack to about 10 seconds on an average if the MIC key is recovered. In this paper, we propose a method for reducing the number of modified packets, which are sent to a receiver from an attacker. Since the execution time for sending these packets is dominant one in the total execution time of our attack, the proposed method can reduce the execution time of our attack. As a result, the execution time of our attack is reduce to 37% of that for original attack. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | WPA / TKIP / falsification attack |
| Paper # | ISEC2009-67,LOIS2009-56 |
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| Conference Information | |
| Committee | LOIS |
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| Conference Date | 2009/11/5(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Life Intelligence and Office Information Systems (LOIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Speeding Up of a Message Falsification Attack on WPA-TKIP |
| Sub Title (in English) | |
| Keyword(1) | WPA |
| Keyword(2) | TKIP |
| Keyword(3) | falsification attack |
| 1st Author's Name | Toshihiro OHIGASHI |
| 1st Author's Affiliation | Information Media Center, Hiroshima University() |
| 2nd Author's Name | Yuki OZAWA |
| 2nd Author's Affiliation | Faculty of Engineering, Kobe University |
| 3rd Author's Name | Masakatu MORII |
| 3rd Author's Affiliation | Graduate School of Engineering, Kobe University |
| Date | 2009-11-13 |
| Paper # | ISEC2009-67,LOIS2009-56 |
| Volume (vol) | vol.109 |
| Number (no) | 272 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |