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![]() ![]() When the client authenticates to the access point (AP), the client and AP perform a 4-way handshake to authenticate the user to the AP. The weakness in WPA2-PSK system is that the encrypted password is shared during 4-way handshake (4-way handshake). WPA2 uses encryption algorithm, AES is stronger, so it is difficult to crack, but not impossible. For that reason, most wireless access points now use Wi-Fi Protected Access II with pre-shared key for wireless security, also known as WPA2-PSK. When Wi-Fi was first developed in the late 1990s, Wired Equivalent Privacy (WEP) was created to secure wireless communications, but it has many bugs and is easily cracked.
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