2020-07-12, rev -02: The Extensible Authentication Protocol (EAP) provides support for multiple authentication methods. This document defines the EAP-NOOB authentication method for nimble out-of-band (OOB) authentication and key derivation. The EAP method is intended for bootstrapping all kinds of Internet-of-Things (IoT) devices that have no pre-configured authentication credentials. The method makes use of a user-assisted one-directional OOB message between the peer device and authentication server to authenticate the in-band key exchange. The device must have an input or output interface, such as a display, microphone, speakers or blinking light, which can send or receive dynamically generated messages of tens of bytes in length.
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