Proof-of-work key wrapping for restricting data execution based on device capabilities
US11436352B2 · kind B2 · utility
1Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2019 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Aug 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The technology disclosed herein provides a proof-of-work key wrapping system for restricting data execution based on device capabilities. An example method may include: accessing a wrapped key and a cryptographic attribute for the wrapped key, wherein the wrapped key encodes a cryptographic key; deriving, by a processing device, the cryptographic key in view of the wrapped key and the cryptographic attribute; using the cryptographic key to access program data; and executing, by the processing device, the program data, wherein the executed program data evaluates a condition related to the duration of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.