Patent ID: 8589674

Claim:
A method comprising: receiving a revocation request for revoking a model type of a device; determining, by a first computing device, a list of device unit identifiers (UIDs) that are associated with the model type from a database, the device UIDs for devices of the model type manufactured by a first entity; adding the list of device UIDs to a device revocation list; and outputting the device revocation list to revoke a validity of secure information associated with devices associated with the list of device UIDs; sending the list of device UIDs from the first computing device to a second computing device, wherein the second computing device outputs the device revocation list to revoke the validity of secure information associated with devices associated with the list of device UIDs, wherein: the list of device UIDs comprises a first list of device UIDs and the database comprises a first database, the second computing device determines a second list of device UIDs that are associated with the model identifier from a second database, the device UIDs in the second list of device UIDs for devices of the model type manufactured by a second entity, and the second computing device adds the second list of device UIDs to the device revocation list.