4-way handshake attack analysis and improvement in 802.11i

Senbai Dalabaev, Sun Quan-fu, Qinghua Li, 何祝平, Yue Shilian, Зухра Абдиахметова

2013

Closed access Metadata (CSL-JSON)
DOI 10.1109/csqrwc.2013.6657453
Data confidence 70 medium
How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

802.11i is the latest security protocol of WLAN, providing confidentiality, integrity and mutual authentication schemes. The paper analyzed the 4-way handshake mechanism of 802.11i protocol, and pointed out the weakness of 4-way handshake protocol flaws and possible attacks. Two improved mechanisms are proposed: 1. ANonce encryption, the transmission of plaintext of ANonce in the method is avoided and enhanced the message1's security. 2. Message1 integrity detection method, the method for messages 1 MIC verification, to ensure the integrity of the message 1. Finally analyzes the security of improvement mechanism.