Byzantine agreement using communications having linear complexity
US10503614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Feb 2, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosure describes a failure-free execution agreement that includes n=3F+1 parties acting as replicas, and a number of parties acting as clients. One replica is designated as a primary. At most F replicas are presumed Byzantine faulty. The basic agreement protocol proceeds in three rounds: (1) client sends a request to the primary, who sends to all replicas; (2) each replica sends a threshold-part signature on hash to a first collector; (3) the collector combines the threshold-parts into a single signature and sends to all 3F+1 replicas which then commit and send to a second collector. The client proceeds when a signed block of requests arrives from the second collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.