Technology for secure partitioning and updating of a distributed digital ledger
US10540652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2016 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jan 14, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An automated method to verify a block record for a digital ledger involves a first validation node (FVN) which receives a block record from a second validation node (SVN). The block record comprises a digital signature for the block record. In response to receiving the block record, the FVN automatically obtains a node identifier for the SVN, based on the digital signature for the block record. The first validator node uses the node identifier for the SVN to determine whether the SVN belongs to a validation group that comprises the FVN. The FVN uses an attestation service to determine whether the node identifier for the SVN belongs to a node with a trusted processor. The FVN determines whether the digital signature for the block record was created with a private key that corresponds to the node identifier for the SVN.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.