SYSTEM AND METHOD OF MULTIPLE-LEVEL CONTROL OF ELECTRONIC DEVICES

摘要

A system and method of multiple-level control of an electronic device are provided. Authorization information comprising data integrity and authentication information for each of a plurality of authorization levels is stored on an electronic device to be controlled. When controlled information associated with one of the plurality of authorization levels is received at the electronic device from a source, integrity of the received controlled information is checked and a determination as to whether the source is a party authorized at the one of the plurality of authorization levels is made, based on the data integrity and authentication information for the one of the plurality of authorization levels. The received controlled information is stored on the electronic device where the integrity of the received controlled information is verified and the source is a party authorized at the one of the plurality of authorization levels.