WPA3

WPA3

Additional Security Features

PMF

SAE

  • Simultaneous Authentication of Equals is a four-way handshake in Personal Mode Authentication that is used by WPA3 as an upgrade to the traditional PSK

Forward Secrecy

  • Prevents Data from being decrypted after it was transmitted over the air
  • Session keys are generated from a long-term Pre-Shared Key that is discarded after the session ends
    • Even if the attack obtains the session key, it cannot be used to decrypt past or future sessions

WPA Authentication Modes

  1. All WPA methods support two authentication modes
    1. Personal mode
      1. A Pre-Shared Key is used for authentication
        1. The PSK is not sent OTA
        2. A four-way handshake is used for authentication, and the PSK is used to generate keys
      2. Common in small networks
    2. Enterprise mode
      1. 802.1X is used with an authentication server (RADIUS/TACACS+ etc.)
      2. All EAP methods are supported

Metadata

OSI or TCP/IP Layer

CCNA Exam Topic

Contributors

Sources