FIRMWARE-BASED SECURE TENANCY TRANSFER

A system includes a stored counter value and a stored boot manifest including a manifest type flag. A manifest type of the boot manifest is determined based on the manifest type flag, a tenancy mode is determined based on a parity of the counter value, a first boot is executed if the manifest type i...

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Bibliographic Details
Main Authors SONI, Vishal, KELLY, Bryan David
Format Patent
LanguageEnglish
French
German
Published 10.04.2024
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A system includes a stored counter value and a stored boot manifest including a manifest type flag. A manifest type of the boot manifest is determined based on the manifest type flag, a tenancy mode is determined based on a parity of the counter value, a first boot is executed if the manifest type is a first manifest type and the tenancy mode is a first tenancy mode, a second boot flow is executed if the manifest type is the first manifest type and the tenancy mode is a second tenancy mode, a third boot flow is executed if the manifest type is a second manifest type and the tenancy mode is the first tenancy mode, and a fourth boot flow is executed if the manifest type is the second manifest type and the tenancy mode is the second tenancy mode.
Bibliography:Application Number: EP20220725637