The EAP-TLS-PSK Authentication Protocol
The Extensible Authentication Protocol (EAP), defined in RFC 3748, is a network access authentication framework which provides support for multiple authentication methods. One proposal is EAP-TLS, which relies on the Transport Layer Security (TLS) protocol and allows for certificate-based authentication. This document specifies EAP-TLS- PSK, which also relies on TLS, but allows for shared secret-based authentication. EAP-TLS-PSK supports the pre-shared key ciphersuites specified in RFC 4279.