Abstract: A device and method for providing a secure execution environment includes retrieving a boot loader, for example, from the memory of an electronic device or from a peripheral component. Next, a determination is made as to whether the boot loader is authorized to be executed on the corresponding electronic device. If the boot loader is authorized, then the boot loader code is executed. By only allowing execution of authorized boot loaders, security related breaches are substantially reduced or eliminated; thereby, enhancing device integrity.

Abstract: A secure firmware update method includes receiving a firmware update image, for example, firmware code including corrected or updated functionality. Next, the firmware update image and the source of the firmware update image are authenticated. After the firmware update image and the source of the firmware update image have been authenticated, the current firmware image is replaced by the firmware update image. If either of the new firmware image or the firmware update module is not authorized, the memory remains locked; thereby, preventing the unauthorized firmware image from being flashed into the memory. An electronic device includes a processor and a memory. The memory maintains instructions that when executed by the processor, causes the processor to receive a firmware update image. Next, the instructions cause the processor to authenticate the firmware update image and the source of the image.