Universally composable key exchange protocol for WLAN
通用可组合安全的WLAN密钥交换协议*

The security is the core in the applications of WLAN. The 4-WAY handshake protocol realized the key exchange and update in the WLAN security basement framework which was defined by IEEE 802.11i. The analysis showed that the 4-WAY handshake was vulnerable to denial-of-service attack. This paper advanced the modified session key agreement protocol, 3-WAY, which was showed that it provided better information authentication, integrality protection and efficiency. In addition, analyzed the 3-way handshake protocol in the universally composable (UC) security model and proved that this new protocol could realize the key-exchanged ideal function and came to the universally composable security. This new protocol has abroad flexibility.