Secure boot policy for platform security using neutral processors in an information handling system

A secure boot policy may be stored in the information handling system and used to create a trusted relationship with a CPU, including a neutral CPU that has not been fused with an OEM key. The secure boot policy may be a data blob including platform-specific identification information (e.g., one or...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Cheng, Po Yu, Liu, Wei G
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A secure boot policy may be stored in the information handling system and used to create a trusted relationship with a CPU, including a neutral CPU that has not been fused with an OEM key. The secure boot policy may be a data blob including platform-specific identification information (e.g., one or more of flash memory unique ID, motherboard ePPID), a boot policy (e.g., specifying to enable or disable neutral CPU fusing), and a signature. The secure boot policy may be stored in a one-time-programmable (OTP) storage of the information handling system, such as an OTP region in the serial peripheral interface (SPI) flash memory part storing the basic input/output system (BIOS). The BIOS may verify the secure boot policy using a public key and check if the boot policy is bound to current BIOS flash part and/or system configuration, and then apply the boot policy if the verification is passed.