Doubly-encrypted secret parts allowing for assembly of a secret using a subset of the doubly- encrypted secret parts
US12219051B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2023 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Sep 15, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system includes at least one processor and at least one memory communicatively coupled to the at least one processor. The at least one processor is configured to receive a plurality of doubly-encrypted secret parts that were encrypted using at least a public key belonging to a public/private keypair. The at least one processor is also configured to decrypt each of the plurality of doubly-encrypted secret parts into a corresponding singly-encrypted secret part using a private key belonging to the public/private keypair. The at least one processor is also configured to decrypt each corresponding singly-encrypted secret part into a corresponding secret part. A secret is reconstructed from a quantity of corresponding secret parts that is a subset of a total number of secret parts. The public key, the private key, or both are rotated by creating a new version of the public key, the private key, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.