Apparatus and method for proving transaction between users in network environment
US6470448B1 · kind B1 · utility
86Cited by
7References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1997 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Mar 31, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3247
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The digital signatures of users A and B are created for a transaction document which states the contents of a transaction between the users A and B, and they are sent to a transaction proof device of a notary public being a third party, together with the transaction document. Thus, the users A and B and the notary public share information, and the notary public can objectively prove the transactional contents, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.