Method and system for relating cryptographic keys
US7313238B2 · kind B2 · utility
2Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Jul 1, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0891
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for relating cryptographic keys. A method includes providing to a user a private share related to a key. The method also includes generating a new key based on a previous version of the key and publishing a rotation catalyst. The new version of the key is determinable based on the key rotation catalyst and the private share. Further, former versions of the key are determinable based on the key rotation catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.