Protection of state data in computer system code
US9639483B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2016 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Sep 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1408
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system, and computer program product are provided for protecting state data of computer system code. The computer system code may be operating system code, subsystem code or application code and the item of state data is not expected to change within the execution of the computer system code. The method includes: creating or modifying an item of state data having a field value and being stored in memory for access by computer system code; registering an item of state data for protection; preserving the field value of the item of state data in a form inaccessible to third party software; validating the field value of the item of state data by comparing a current field value with the preserved field value to determine if the field value has been modified; and, if the field value has been modified, taking appropriate action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.