Device for generating an encrypted key and method for providing an encrypted key to a receiver

A method of providing an encrypted master key to a receiver, the method comprising:

• receiving, by a device, a receiver identifier, a service provider identifier associated with a service provider and a master key for the service provider, the service provider being a secondary service provider;
• processing, by the device, the receiver identifier using a secret information stored in a memory to obtain a root key;
• processing, by the device, the service provider identifier using the root key to obtain a top key;
• processing, by the device, the master key using the top key to obtain an encrypted master key;
• and
• outputting, by the device, the encrypted master key.

A non-transitory computer readable medium with instructions stored therein which upon execution cause at least one processor to:

• detect receipt of a receiver identifier, a service provider identifier associated with a service provider and a master key for the service provider, the service provider being a secondary service provider;
• store secret information;
• process the receiver identifier using the secret information to obtain a root key;
• process the service provider identifier using the root key to obtain a top key;
• process the master key using the top key to obtain an encrypted master key;
• and
• output the encrypted master key.