Secure electronic forms permitting layout revision
US6028938A · kind A · utility
61Cited by
2References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1996 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Dec 3, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for ensuring the security of forms data are disclosed. The layout for a particular form is signed separately from the data used to fill out the form using encryption techniques. The signed data is related to the signed layout in a way which permits the layout to be changed without requiring the data to be changed while still guaranteeing that a changed layout does not change the original meaning of the signed data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.