Extended-life asymmetric cryptographic key scheme
US11405187B2 · kind B2 · utility
0Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2020 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Jun 25, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3265
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Extending the useful life of finite lifetime asymmetric cryptographic keys by referencing the number of uses of the keys in conjunction with or instead of the elapsed time since generation of the finite lifetime keys. By integrating asymmetric cryptographic keys into a limited use security scheme, the lifetime of finite lifetime asymmetric cryptographic keys is based on the practical risk of security breach during use rather than an arbitrary duration in which the keys are valid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.