Computer Hacking Forensic Investigator (CHFI) Practice Exam 2026 - Free CHFI Practice Questions and Comprehensive Study Guide

The encryption algorithm used by WPA2 is CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol), which is based on the Advanced Encryption Standard (AES). AES is a symmetric key algorithm that provides a high level of security and is widely recognized for its strength against cryptographic attacks.

WPA2 implements CCMP as its mandatory encryption method to protect wireless data transmissions. This is a significant improvement over earlier protocols like WEP and WPA, which relied on the less secure RC4 algorithm. The use of AES within CCMP enhances data confidentiality, data integrity, and authentication, making it a robust choice for securing wireless networks.

In the context of the other options, while TKIP (Temporal Key Integrity Protocol) was used in WPA, it is not the algorithm used in WPA2, which directly utilizes AES for its encryption. Thus, CCMP with AES is the correct answer as it highlights the security features integral to WPA2 standards.