Final answer:
Both WPA2 and WPA3 use AES for encryption through the CCMP protocol, which offers a high level of security for wireless networks.
Step-by-step explanation:
The encryption protocol used by both WPA2 and WPA3 is AES. Specifically, both standards can use CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol), which is based on AES for encryption. WPA2 introduced CCMP as a replacement for the older TKIP (Temporal Key Integrity Protocol), which was used in the original WPA standard. While WPA3 also supports CCMP, it introduces an additional protocol named GCMP (Galois/Counter Mode Protocol), also based on AES, which provides more robust security than its predecessors. The use of AES ensures a high level of security for wireless networks protected by either WPA2 or WPA3.