Autonomously secured image data
US6757827B1 · kind B1 · utility
30Cited by
13References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1999 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Apr 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and a data file structure (100) for embedding a digital signature verification key (108) within a particular type of image data file enables validation of the image data (102a,b) autonomously—i.e. without consulting large external data bases of public keys or certificates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.