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on
1
Intro
2
Brief Wi-Fi History
3
Wi-Fi Survey
4
Outline
5
TKIP Countermeasures
6
Quality of Service
7
The ChopChop Attack
8
Side-Channels
9
Methodology
10
Fragment 1/2
11
Return of Power Management
12
Hardware Decryption
13
Recall TKIP Header
14
Impact
15
Improvements
16
Countermeasures to our Attacks
17
CTR mode with CBC-MAC Protocol
18
Demonstration.
19
Conclusion
Description:
Explore practical side-channel attacks against WPA-TKIP in this 34-minute Black Hat conference talk. Discover why legacy protocols like WPA-TKIP are still widely used in modern Wi-Fi networks, despite the introduction of more secure alternatives like WPA3. Learn about the systematic analysis of WPA-TKIP implementations, including wardriving efforts across cities in the United States, Germany, and Belgium. Delve into topics such as Wi-Fi history, TKIP countermeasures, quality of service, the ChopChop attack, side-channels, and hardware decryption. Gain insights into the impact of these vulnerabilities, potential improvements, and countermeasures against the presented attacks. Understand the CTR mode with CBC-MAC Protocol and witness a demonstration of the discussed techniques. Conclude with a comprehensive overview of the practical implications for wireless network security.

Practical Side-Channel Attacks Against WPA-TKIP

Black Hat
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