Network system for transporting security-protected data
US6480963B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1999 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Jan 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0227
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network system with integrated security protection facilities. The system involves a transmission unit and a reception unit, which are coupled to each other via a network. In the transmission unit, a data management unit performs centralized management of source data that is stored in a plurality of storage units in a distributed manner. In response to a data transmission request from a terminal local to the transmission unit, a data collection unit collects requested data items from the data management unit. A security processor applies appropriate security protection processes to the collected data, depending on its data confidentiality level. An identification data attaching unit attaches identification data to the transmission data. This identification data informs the recipient of what sequence of security process primitives has been applied to the source data. A transmitter sends out the security-protected data over the network. In the reception unit, a receiver accepts the data sent from the transmission unit, and an identification data extracting unit extracts the identification data attached to the received data. With this identification data, an unprotection unit unprot…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.