Digital signature with an embedded view
US7533268B1 · kind B1 · utility
53Cited by
397References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2004 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Mar 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/68
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Digital signatures having an embedded view of signed data that lock the signed data but permit it to be repurposed are described. One of these digital signatures can be repurposed for signature by others, such as co-signers or counter-signers. Another of these digital signatures includes embedded information sufficient to recreate the embedded view using the signed data. A method for building a digital signature is also described that permits signing different parts of an electronic document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.