Agreement of exchange - keys on the basis of two static asymmetrical key - pairs

摘要

The present invention provides a method for establishing a part of the extruding identity module (sim) for the agreement of one or more exchange - keys (k), between a subscriber identity module (sim) and a provisioning - server (ota s). The one or more exchange - key (k) are made of key of the provisioning - server and of the part of the extruding identity module on a production - server (prod s) is generated, and in the subscriber identity module (sim) is transmitted and stored, so that the subscriber identity module (sim) in particular in a state, as there would be the exchange - key (k), itself generates. In the case of a process for the agreement of one or more exchange - keys (k), between a subscriber identity module (sim) and a provisioning - server (ota s), the subscriber identity module sends its public key to the provisioning - server, which then generates the exchange - key.