| 摘要 |
A method of authenticating a request for session keys sent from a Network Authentication Function of a visited network to a Bootstrapping Server Function of a home network in respect of User Equipment, UE, the request comprising a transaction identifier. The method comprises, at the Bootstrapping Server Function, comparing a UE identification part of the transaction identifier with a value generated by applying a one-way function to an Authentication and Key Agreement key previously agreed between the UE and the Bootstrapping Server Function as part of an Authentication and Key Agreement procedure, and if the values agree, progressing the request by sending appropriate session keys to the Network Authentication Function, otherwise denying the request. |
