Portable executable and non-portable executable boot file security
US10664599B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | May 1, 2017 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Nov 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3263
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for protecting a kernel for secure boot of an operating system includes preparing a kernel component with a signature for a secure boot. A processing unit modifies a machine owner key (MOK) file to include a trusted certificate. The MOK is separate from the kernel file. The processing unit validates the kernel component using a modified Grub file, a modified Shim file, and the MOK, and executes a secure boot using the validated kernel component. The kernel is unchanged by the secure boot process. The kernel component that is protected may be either a program executable (PE) file or a non-PE file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.