Which protocol provides both encryption and packet authentication in modern Wi-Fi networks?

Which protocol provides both encryption and packet authentication in modern Wi-Fi networks?

• A. TKIP
• B. CCMP
• C. WEP
• D. WPA

Answer: (B)

In modern Wi‑Fi networks, data protection that includes both encryption and packet authentication is provided by CCMP, an AES-based protocol. CCMP uses AES in CCM mode, which combines counter mode for encryption with CBC‑MAC for authentication, giving confidentiality and integrity for every packet. WEP is outdated and insecure due to weak IV handling and lack of strong integrity checks. TKIP offered an improvement over WEP but still relies on RC4 and weaker integrity mechanisms. WPA is the security framework that can use TKIP or CCMP, but the current strong standard for both encryption and authentication is CCMP.

In modern Wi‑Fi networks, data protection that includes both encryption and packet authentication is provided by CCMP, an AES-based protocol. CCMP uses AES in CCM mode, which combines counter mode for encryption with CBC‑MAC for authentication, giving confidentiality and integrity for every packet. WEP is outdated and insecure due to weak IV handling and lack of strong integrity checks. TKIP offered an improvement over WEP but still relies on RC4 and weaker integrity mechanisms. WPA is the security framework that can use TKIP or CCMP, but the current strong standard for both encryption and authentication is CCMP.