| Paper Abstract and Keywords |
| Presentation |
2005-03-17 16:10
A Chosen IV Attack against FMS Attack-Resistant WEP Implementation
Toshihiro Ohigashi (The Univ. of Tokushima), Yoshiaki Shiraishi (Kinki Univ.), Masakatu Morii (The Univ. of Tokushima) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
WEP protocol is a security protocol to protect privacy of the wireless LAN communication. Original WEP was broken by the FMS attack in 2001. FMS attack-resistant WEP implementation removes weak IVs to resist the FMS attack. We have already proposed a known IV attack to FMS attack-resistant WEP implementation, and have pointed out that most WEP's IVs become weak IV. When $64$-bit session key, the threat of the practical attack for the FMS attack-resistant WEP implementation increases greatly by the known IV attack. When $128$-bit session key, the known IV attack recover $104$-bit secret key of the FMS attack-resistant WEP implementation within realistically possible computational times. In this paper, we propose more efficient key recovery attack. The proposed attack chooses weak IVs with strong bias from all weak IVs, and is a practical attack for the FMS attack-resistant WEP implementation of $128$-bit session key. Therefore, the FMS attack-resistant WEP implementation is insecure. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
wireless LAN / WEP / key recovery attack / weak IV / RC4 / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 731, ISEC2004-113, pp. 43-48, March 2005. |
| Paper # |
ISEC2004-113 |
| Date of Issue |
2005-03-10 (IT, ISEC, WBS) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
IT WBS ISEC |
| Conference Date |
2005-03-17 - 2005-03-18 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kyoto Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
general |
| Paper Information |
| Registration To |
ISEC |
| Conference Code |
2005-03-IT-WBS-ISEC |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A Chosen IV Attack against FMS Attack-Resistant WEP Implementation |
| Sub Title (in English) |
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| Keyword(1) |
wireless LAN |
| Keyword(2) |
WEP |
| Keyword(3) |
key recovery attack |
| Keyword(4) |
weak IV |
| Keyword(5) |
RC4 |
| Keyword(6) |
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| Keyword(7) |
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| 1st Author's Name |
Toshihiro Ohigashi |
| 1st Author's Affiliation |
The University of Tokushima (The Univ. of Tokushima) |
| 2nd Author's Name |
Yoshiaki Shiraishi |
| 2nd Author's Affiliation |
Kinki University (Kinki Univ.) |
| 3rd Author's Name |
Masakatu Morii |
| 3rd Author's Affiliation |
The University of Tokushima (The Univ. of Tokushima) |
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| Speaker |
Author-1 |
| Date Time |
2005-03-17 16:10:00 |
| Presentation Time |
25 minutes |
| Registration for |
ISEC |
| Paper # |
IT2004-57, ISEC2004-113, WBS2004-172 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.729(IT), no.731(ISEC), no.733(WBS) |
| Page |
pp.43-48 |
| #Pages |
6 |
| Date of Issue |
2005-03-10 (IT, ISEC, WBS) |
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