A method including determining a public identifier for identifying a configuration of an apparatus, determining a common configuration certificate comprising a common configuration certificate identifier for verifying programming data, and determining a hardware certificate comprising the public identifier and the common configuration certificate identifier for associating a permitted combination of the apparatus configuration and the programming data. Furthermore, the method includes generating a dedicated package of the hardware certificates corresponding to the apparatus configurations allowed to be provided, encrypting the dedicated package of the hardware certificates using a public key, and storing the encrypted dedicated package of the hardware certificates with an identifier to a passive memory of the apparatus.