The 4 way handshake allows the client and the AP to both prove that they know they key, without telling each other. This was shown to be insecure and can be broken by capturing enough packets to guess the key via statistical methods. Previously, the WEP (Wired Equivalent Privacy) standard was used. WPA2-EAP uses RADIUS servers to authenticate, so if you have to enter a username and password in order to connect then it’s probably that. If you have to log in with a password and it’s not WEP, then it’s WPA(2) personal. Most home WiFi networks, and many others, use WPA(2) personal. The core of WPA(2) authentication is the 4 way handshake. RADIUS: A server for authenticating clients, not just for wifi.WPA2-EAP: Wifi networks that you authenticate to by providing a username and password, which is sent to a RADIUS server.WPA2-PSK: Wifi networks that you connect to by providing a password that’s the same for everyone. BSSID: An access point MAC (hardware) address.For Aircrack they normally refer to the network you’re attacking. ESSID: An SSID that *may* apply to multiple access points, eg a company office, normally forming a bigger network.SSID: The network “name” that you see when you try and connect.Learn to attack WPA(2) networks! Ideally you’ll want a smartphone with you for this, preferably one that supports hosting wifi hotspots so you can follow along.
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