Title:
ファームウェアのセキュアな検証
Document Type and Number:
Japanese Patent JP7425797
Kind Code:
B2
Abstract:
A computing system is described for securely verifying system firmware and recovery firmware to ensure system integrity without relying on a manufacture's proprietary verification process, hardware-specific keys, or inherent write-protection features of system memory. The computing system relies on a security processor that maintains firmware management parameters which define a process for verifying firmware and recovery firmware independent of an integrated circuit manufacturer's Mask ROM (read-only-memory) verification process. The security processor ensures that the firmware or recovery firmware is signed appropriately and consistent with previously executed versions, or if different, produces verification results (e.g., generated hash values) that are consistent with expected results embedded in the firmware, at compile time. In this way, the computing system improves usability, customization, and user control over the firmware and recovery firmware that is executed within the computing system.
Inventors:
Spangler, Randall
Application Number:
JP2021532127A
Publication Date:
January 31, 2024
Filing Date:
June 10, 2019
Export Citation:
Assignee:
Google LLC
International Classes:
G06F21/57
Domestic Patent References:
| JP2019075000A | ||||
| JP2015022521A | ||||
| JP2014518428A | ||||
| JP2016197399A |
Foreign References:
| US20170085383 |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office