Technical analysis: cracking wireless wi-fi WPS authentication mechanism (1)

Technical analysis: cracking wireless wi-fi WPS authentication mechanism (1)

1. WPS authentication mechanism

WPS (Wi-Fi Protected Setup, Wi-Fi protection settings) (some are called AOSS, some are called QSS, but all functions are consistent .) It is a certification project organized and implemented by the Wi-Fi Alliance. It is mainly designed to simplify the installation and security performance configuration of Wireless LAN. In the traditional mode, when creating a wireless network, you must manually set the network name (SSID) and security key at the access point, and then verify the key on the client to prevent the "non-fast customer" intrusion. This process requires the user to have background knowledge of Wi-Fi devices and the ability to modify necessary configurations. Wi-Fi Protected Setup helps you automatically set the network name (SSID), configure WPA data encoding, and authenticate functions. You only need to enter the Personal Information Code (PIN method) or press the button (Button setting, or the PBC) to Securely connect to the WLAN. This greatly simplifies wireless security settings. Wi-Fi Protected Setup supports a variety of Wi-Fi-certified 802.11 products, including access points, wireless adapters, Wi-Fi phones, and other consumer electronic devices.

WPS can help client users automatically configure the network name (SSID) and wireless encryption key. For ordinary users, secure connections can be achieved without understanding the concepts of SSID and security key, and users' security keys cannot be cracked by outsiders because they are randomly generated; the most important thing is that users do not need to remember lengthy wireless encryption passwords, avoiding the trouble of forgetting the passwords.

Wps authentication AP operation instructions

1. An AP device that supports WPS usually has a button. Press this button to wait for the customer to connect to the device within a certain period of time (usually 120 s. There are also corresponding operations on the webpage management interface. Select either of them.

2. Press the WPS connection button of the NIC device (some are QSS and AOSS) to connect to the AP. (You can also enter a PIN code to connect to the connection. You need to set the AP ).

3. establish a connection between the wireless network card and the AP with WPS authentication.

The WPS connection operation is shown in the figure dimo-wps.