Patent ID: 8959333
Filing Date: 2015-02-17
Classification: H04L,H04W

Abstract:
1. A method of providing a mesh key used to encrypt messages between a first node and a second node of a mesh network, comprising: generating a session key during an authentication of the first node at an authentication server; and deriving the mesh key from the session key, the first node and either the authentication server or an authentication proxy server deriving the mesh key using a key derivation function, the mesh key being able to be transmitted to the second node, wherein the step of deriving the mesh key from the session key by means of the key derivation function is carried out by the authentication server or the authentication proxy server wherein the derived mesh key is transferred to the second node with an associated indicator flag in an extensible authentication protocol success message, and recognizing by the second node that the key derivation function is still to be performed if said message does not contain the associated indicator flag.