1. A method comprising: pre-booting a trusted processor using a secure pre-boot loader integrated with the trusted processor; verifying whether an external boot loader for the trusted processor is valid; when the external boot loader for the secure processor is valid, booting the trusted processor using the external boot loader, thereby enabling trusted operation of the trusted processor; first verifying, by the trusted processor, whether a firmware image for a field programmable gate array (FPGA) is valid; when the firmware image for the FPGA is valid, triggering a firmware image loading process for the FPGA; verifying, by the FPGA, whether an external boot loader for an untrusted processor is valid; when the external boot loader for the untrusted processor is valid, booting the untrusted processor using the external boot loader for the untrusted processor; when the external boot loader for the untrusted processor is not valid, raising, by the FPGA, an alarm, and causing an entry to be placed in a log file, when the firmware image loading process is triggered, loading the firmware image into the FPGA; releasing the FPGA for executing the firmware image, and monitoring, by the FPGA, a flow of instructions from the external boot loader for the untrusted processor during the booting of the untrusted processor to determine whether the flow of instructions from the second external boot loader is an authorized flow of instructions.