Method and apparatus for verifying data timeliness with time-based derived cryptographic keys
US7392382B1 · kind B1 · utility
12Cited by
2References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2003 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | May 17, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/088
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of verifying data timeliness with time-based derived cryptographic keys is disclosed. A master key is received. Based on both the master key and a current time, an interval key is derived. Data, which was encrypted with the interval key, is decrypted with the interval key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.