Auditable security system for the generation of cryptographically protected digital data
US5949879A · kind A · utility
71Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1996 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Sep 6, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00798
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A secure system for Authentication information. The system includes a scanner for reading the information contained in a document, a timing mechanism for entering the time the document was read, an encryptor for encrypting the read and timed information and a counter for counting the number of documents processed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.