Methods and systems for cryptographic private key management for secure multiparty storage and transfer of information
US11316668B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2019 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Apr 10, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Cryptographic key management systems configured to provide key management services for the secure and decentralized control and storage of private cryptographic keys and other information. Asset private keys, seeds, passphrases, and other digitized information may be split into a plurality of subkeys and distributed to a group of people to allow the group to gain control of the asset private key if and when a specified condition has occurred. In some examples, the group of people receive less than a threshold number of the subkeys required to restore the asset private key and one or more of the subkeys required to restore the asset private key are defined as validator subkeys, the validator subkeys separately and securely stored. In some examples, the validator subkeys are encrypted and the encrypted validator subkeys stored on a blockchain platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.