Invention Grant
- Patent Title: Secure firmware devices and methods
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Application No.: US15715773Application Date: 2017-09-26
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Publication No.: US10552613B2Publication Date: 2020-02-04
- Inventor: Krishnakumar Narasimhan , Sudhakar Otturu , Karunakara Kotary , Vincent J. Zimmer
- Applicant: INTEL CORPORATION
- Applicant Address: US CA Santa Clara
- Assignee: INTEL CORPORATION
- Current Assignee: INTEL CORPORATION
- Current Assignee Address: US CA Santa Clara
- Agency: Finch & Maloney PLLC
- Main IPC: G06F21/57
- IPC: G06F21/57 ; G06F21/44 ; G06F21/62 ; G06F8/65

Abstract:
A computing device that implements a secure and transparent firmware update process is provided. The computing device includes a secure memory area and a secure device that separately executes firmware updates in parallel with other processes executed by a CPU. The secure memory area may be allocated by the CPU and/or a memory controller using any of a variety of memory protection techniques. System software executed by the CPU receives update firmware requests from a trusted source, stores a firmware payload included in these requests in the secure memory area, and executes the next scheduled process. Firmware executed by the secure device retrieves the firmware payload from the secure memory area, authenticates the firmware payload, and applies the firmware payload to a firmware storage device. The secure device performs these acts transparently from the point of view of the CPU, these avoiding consumption of resources of the CPU.
Public/Granted literature
- US20190095623A1 SECURE FIRMWARE DEVICES AND METHODS Public/Granted day:2019-03-28
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