System and method of authenticating firmware for an information handling system
Abstract:
In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may retrieve a first hash value of a key manifest public key from a one time programmable memory medium; determine a second hash value of the key manifest public key; retrieve a third hash value of an initial boot block from the boot policy manifest; determine a fourth hash value of the initial boot block; determine that the third hash matches the fourth hash value; execute the initial boot block; validate subordinate certificates with a root certificate; determine firmware hash values respectively from the firmware volumes; decrypt signatures respectively associated with the firmware volumes to obtain respective decrypted signatures, in which the signatures are decrypted with public encryption keys of the respective subordinate certificates; determine that the firmware hash values respectively match the decrypted signatures; and execute the firmware volumes.
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