Method and apparatus for supervising access and protecting against unauthorized access in a communication metwork
US5471459A · kind A · utility
Inventor
Key dates
| Filing date | May 12, 1993 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | May 12, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
With this method protection against unauthorized access can be accomplished centrally so that less memory capacity and calculation time are needed for testing the right-of-access. By this the message traffic in the whole network is constantly intercepted by a central supervision device (SV). A table is stored in the central supervision device (SV) whereby upon entry of a message, the central supervision device tests the right-of-access of the message sender (SE,PC) to the message receiver (AK) with the aid of data in the table and a predetermined portion of the information contained in the message. In case of unauthorized access, the supervision device causes the message to be rendered ineffective.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.