2010 Fiscal Year Final Research Report
A STADY ON EVALUATION METHOD FOR STREAM CIPHER
| Project/Area Number |
21700018
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Fundamental theory of informatics
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| Research Institution | Hiroshima University |
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Principal Investigator |
OHIGASHI Toshihiro Hiroshima University, 情報メディア教育研究センター, 助教 (80508127)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 暗号系 / ストリーム暗号 / 無線LAN / WPA-TKIP |
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| Research Abstract |
In this research, I proposed falsification methods against WPA-TKIP, which is a security protocol for wireless LAN with stream cipher, for evaluating its security. Previous method succeeds only for a network that supports IEEE802.11e QoS features. First, I removed this condition by modifying any packet to QoS packet. Second, I improved the execution time of the falsification method, and it enables DHCP-DNS attack, which is a method to accept forgery IP address of DNS server, in a realistic environment.
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