Data processing system capable of preventing system time from being tampered in off-line status
US12430441B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Apr 23, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/554
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system in an off-line status includes a BIOS device and at least one processor. The BIOS device is for calculating a current system time. The at least one processor executes an operating system. The operating system includes a time logging driver resident in a driver layer of the operating system and an application layer start/end time recording process resident in an application layer of the operating system. The time logging driver records a driver start time and a driver end time. The application layer start/end time recording process records an application layer start time and an application layer end time. The data processing system of the invention, according to the application layer start time, the application layer end time, the driver start time and the driver end time, adjusts the current system time to prevent the current system time from being tampered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.