Patent · US Active

Managing control of a security processor in a supply chain

US11816252B2 · kind B2 · utility

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19Claims
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Assignee

Inventors

Key dates

Filing dateJul 12, 2021
Grant dateNov 14, 2023
Priority date
Expiry dateMar 24, 2042

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2221/033
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

Embodiments of systems and methods for managing control of a security processor in a supply chain are described. In some embodiments, a security processor may include: a core; and a memory coupled to the core, the memory having program instructions stored thereon that, upon execution by the core, cause the security processor to: store a first public key usable to initiate a first secure boot process and unusable to initiate a second secure boot process; store a second public key usable to initiate the second secure boot process and unusable to initiate the first secure boot process; and in response to a first change of control or ownership of the security processor, render the first public key unusable to initiate the first secure boot process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.