An apparatus for firmware authentication and methods of operating the same result in software upgradability to firmware without compromising the integrity of the firmware. The apparatus for firmware authentication of a boot PROM comprises a software programmable data section having a plurality of micro-code. An authentication section having a hash generator configured to generate a data hash in response to the plurality of micro-code programmed in the software programmable data section to authorize execution of the plurality of micro-code of the data section.

 
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