Patent ID: 8868912
Filing Date: 2014-10-21
Classification: H04L,H04W

Abstract:
1. A method of establishing a security association between a first node and a second node for the purpose of pushing information from the first node to the second node, wherein the second node and a key generation function share a secret, the method comprising: sending a request for generation and provision of a service key from the first node to a key generation function, the request containing identities of the first and second nodes; generating the service key at the key generation function using the identity of the first node, the secret, and additional information, signing the additional information using a derivative of the secret and sending the service key to the first node together with the additional information; forwarding the additional information and the identity of the first node from the first node to the second node; and at the second node, verifying the additional information and generating the service key using at least the received additional information, the first node identity and the derivative of the secret.