Editing Extensible Authentication Protocol (section)

===EAP Pre-Shared Key (EAP-PSK)===
<ref name="rfc3748_sec1" /> EAP Pre-shared key (EAP-PSK), defined in {{IETF RFC|4764}}, is an EAP method for mutual authentication and session key derivation using a [[pre-shared key]] (PSK). It provides a protected communication channel, when mutual authentication is successful, for both parties to communicate and is designed for authentication over insecure networks such as IEEE 802.11.

EAP-PSK is documented in an experimental RFC that provides a lightweight and extensible EAP method that does not require any public-key cryptography. The EAP method protocol exchange is done in a minimum of four messages.