Electronic device within blockchain based PKI domain, electronic device within certification authority based PKI domain, and cryptographic communication system including these electronic devices
US12206756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2020 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Jun 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An electronic device of a first domain, which is a blockchain-based public key infrastructure (PKI) domain, includes: an interface configured to receive, from a first entity belonging to a second domain which is a certification authority (CA)-based PKI domain, a first certificate of the first entity and a second certificate of a second entity, wherein the second entity is an upper node of the first entity and is a node of a blockchain; a memory configured to store the first certificate and the second certificate; and a processor configured to look up a transaction corresponding to the second entity at a distributed ledger of the first domain based on an identifier of the second entity, verify the second certificate based on the transaction, and verify the first certificate based on the second certificate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.