System and method for trusted path communications
US5499297A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1994 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Dec 20, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/009
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for identifying and authenticating users and for controlling the access of those users to privileged instructions within a data enclave. The data enclave includes a plurality of controllers, such as workstations, connected over a network to a security server; each data enclave is assigned a cryptographic key. A personal keying device having an encrypted user unique identifier is assigned to each user; provisions are made for temporarily connecting the personal keying device to one of the controllers and for transmitting an encrypted message, including the user unique identifier and the last countersign, to the security server to authenticate the user and establish his/her access rights. A mechanism for updating the countersign is provided so that trusted path communications can be established between the user and the security server.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.