(PTK) is generated for secure data exchange.

WPA2 employs the Advanced Encryption Standard (AES) with a 128-bit key, enhancing security through the Counter-Mode/CBC-Mac Protocol CCMP. This protocol ensures robust encryption and data integrity, using different Initialization Vectors (IVs) for encryption and authentication purposes.

The 4-way handshake involves:
* The AP sending a random number (ANonce) to the client.
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