Apparatus and method for distinguishing between legitimate and malicious branches of a split blockchain
US11108820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2019 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Mar 2, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Nodes determine a first measure of difficulty for a first branch of a split blockchain and a second measure of difficulty for a second branch of the split blockchain. The first measure of difficulty is based on a measure of block generation frequency of each node that mined for the split blockchain during a window that comprises blocks of the first branch. The second measure of difficulty is based on a measure of block generation frequency of each node that mined for the split blockchain during a window that comprises blocks of the second branch. One of the first branch and the second branch is identified as a legitimate branch based on a comparison of the first measure of difficulty and the second measure of difficulty.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.