Patent ID: 8837737
Filing Date: 2014-09-16
Classification: H04L

Abstract:
1. A method of key management at a Key Management Server for a first and second device in a communication network, the method comprising: at the Key Management Server, receiving from the first device a request for a token associated with a user identity; sending the requested token and a user key associated with the user identity from the Key Management Server to the first device; receiving the token at the Key Management Server from the second device, the second device being associated with the user identity; generating, at the Key Management Server, a second device key using the user key and a modifying parameter associated with the second device, wherein the modifying parameter also is or will be available to the first device for generating the second device key from the user key; and sending the second device key from the Key Management Server to the second device for authentication or secure communication between the first device and the second device.