| 摘要 |
The present invention addresses apparatuses, methods and computer program product for providing improved authentication of a network by a network node. A network node identification and a vendor certificate are configured in a network node, a usage certificate is created for the network node, which is signed by the vendor with a signature, and contains verification information indicating that the usage certificate relates to this network node and authentication information for allowing the network node to authenticate a network, the usage certificate is transmitted to an operator of an operator network, the network node requests the usage certificate from the operator, when the network node is initially connected to the operator network, the network node determines validity of the signature in the usage certificate received upon the request, and the network node checks whether the received usage certificate actually relates to the network node being initially connected to the operator network, based on the information contained in the usage certificate. |
