Described herein are devices and techniques related to implementation of a trustworthy electronic processing module. During fabrication, a manufacturer is provided with partial technical specifications that intentionally exclude at least one critical design feature. Fabrication of the electronic processing module is monitored from a trusted remote location; wherefrom, the intentionally excluded at least one critical design feature is implemented, thereby completing manufacture of the trustworthy electronic processing module. At least one of the acts of monitoring and implementing can be accomplished by instantiating executable software remotely from a trusted remote location and immediately prior to execution. It is the executable software that enables at least one of the acts of monitoring and implementing. Further, the instantiated executable software is removed or otherwise rendered inoperable immediately subsequent to execution. In some embodiments the critical design feature can be implemented within a configurable element, such as a field programmable gate array (FPGA).