What functionality does WPA2 require that enhances security measures over WPA?

WPA2 enhances security measures compared to WPA primarily through the use of the Advanced Encryption Standard (AES) for encryption, which is a more secure algorithm than the Temporal Key Integrity Protocol (TKIP) used in WPA. While increased processing power may facilitate the implementation of more advanced protocols and encryption algorithms, it is not a direct requirement of WPA2 itself.

The key feature that sets WPA2 apart in terms of security is its mandatory support for AES instead of relying on TKIP, which was designed for legacy systems. AES provides stronger encryption capabilities, making it less susceptible to attacks and enhancing overall network security. Therefore, the emphasis on encryption strength and the specific security protocols utilized is essential to understanding why WPA2 is deemed more secure.

Other aspects, such as increased processing power, support for 64-bit encryption, and longer initialization vectors, do not directly encapsulate the critical changes that WPA2 has implemented to improve upon WPA in terms of security.