CREST Practitioner Security Analyst (CPSA) Practice

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What encryption method does WPA2 utilize?

DES Encryption
3DES Encryption
AES Encryption
RSA Encryption

The correct answer is: AES Encryption

WPA2, which stands for Wi-Fi Protected Access II, employs Advanced Encryption Standard (AES) as its encryption method. AES is a symmetric encryption algorithm widely recognized for its effectiveness and security. It provides strong encryption for wireless networks, ensuring that data transmitted over the network remains confidential and secure from unauthorized access. Unlike older encryption methods such as DES (Data Encryption Standard) and 3DES (Triple DES), which are now considered outdated and vulnerable to attacks, AES is significantly more resilient against cryptographic attacks due to its longer key lengths (128, 192, or 256 bits) and efficient algorithm structure. This makes AES a preferred choice for modern security standards in wireless communications. RSA (Rivest-Shamir-Adleman), on the other hand, is an asymmetric encryption algorithm primarily used for secure data transmission and not suited for encrypting data flows in a manner similar to AES. WPA2's reliance on AES aligns with industry best practices for network security, reinforcing the robustness of wireless data protection.