| 20110145919 | METHOD AND APPARATUS FOR ENSURING CONSISTENT SYSTEM CONFIGURATION IN SECURE APPLICATIONS - In exemplary embodiments, methods and apparatuses for securing electronic devices against tampering or unauthorized modifications are presented herein. One or more system locks may be installed in the system at a location between two or more subsystems along a communications path. Each system lock may be associated with a particular subsystem. The system locks may monitor the state of the system, including transactions targeting associated subsystems, and the transactions and/or state of the system may be compared to known valid transactions and states. If the requested transaction or enacted system state differs from a known acceptable transaction or state, a notification may be generated and countermeasures may be enacted. In some embodiments, the system locks may be located in a system bus on an electronic device to ensure that software executed on the electronic device remains free of tampering. | 06-16-2011 |