| 摘要 |
<p>A method for establishing a security association between a User Equipment and a Network Application Function for the purpose of pushing information from the Network Application Function to the User Equipment, where the User Equipment and a Home Subscriber Server share a secret. The method comprises sending a request for generation and provision of a NAF key from the Network Application Function to a Bootstrapping Server Function, the request identifying the User Equipment and the Network Application Function, generating a NAF key at the Bootstrapping Server Function using the identities of the User Equipment and the Network Application Function, the secret, and additional information, and sending the NAF key to the Network Application Function together with said additional information, forwarding said additional information from the Network Application Function to the User Equipment, and at the User Equipment, generating said NAF key using the received additional information and the secret.</p> |
