System and method of authentication of digital information
US6260145A · kind A · utility
24Cited by
15References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1997 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Jul 29, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an authentication system for companies, a server appends suitable verification data to an electronic document to be circulated through terminal units for persons in charge. Each terminal is allocated a unique function in advance and applies it to the verification data in turn when receiving the document. Upon receipt of the document that has been circulated through the persons in charge, the server examines the function-applied value appended to the document to determine whether the document has been circulated correctly through the persons in charge, or via the correct route.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.