Efficient quantum key management
US10326591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2017 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Jul 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3236
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present application provides a system for key management. During operation, the system determines a key block from a key sequence obtained based on Quantum Key Distribution (QKD) and a time sequence identifier for the key block. The system synchronizes the key block with a corresponding key block of a partner key management system based on a hash of the key block and the time sequence identifier. If the synchronization is successful, the system stores the key block and the time sequence identifier in a key pool. If the system receives a request for a key from an application, the system acquires the key block from the key pool and validates the key block with the partner key management system based on a hash of the key block and the time sequence identifier. If the validation is successful, the system provides the key block to the application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.