Method and computer system for fault tolerant data integrity verification of safety-related data
US10963334B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2019 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Nov 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/82
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for fault tolerant data integrity verification of safety-related data in a safety-related computer system is disclosed. The method includes a) randomly generating a set of at least two or more initial values; b) calculating, for each of the initial values, one specific CRC reference value, wherein each specific CRC reference value is calculated jointly from the safety-related data to be verified and the initial value associated with the specific CRC reference value; c) storing the pairs of initial value and associated specific CRC reference value; and d) following the steps a)-c), d1) randomly choosing an initial value out of the set of initial values generated in step a), d2) the non-safety-related hardware-engine calculating a CRC value jointly from the randomly chosen initial value and the safety-related data to be verified, and d3) comparing the calculated CRC value from step d2) to the reference CRC value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.