Proof-of-work key wrapping for cryptographically controlling data access
US11424920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2019 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Nov 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3226
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The technology disclosed herein provides a proof-of-work key wrapping system that cryptographically controls access to data. An example method may include: selecting a set of cryptographic attributes in view of a characteristic of a computing device; obtaining, by a processing device, a cryptographic key; encrypting, by the processing device, the cryptographic key in view of the set of cryptographic attributes to produce a wrapped key; and providing the wrapped key and at least one of the cryptographic attributes to the computing device, wherein the at least one cryptographic attribute facilitates deriving the cryptographic key from the wrapped key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.