Process for the control of the use of a data processing work station by a password and data processing work station using this process
US5222135A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1991 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Dec 23, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/33
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Method for controlling the use of a data-processing workstation (1) by password, comprising storage of the password within the workstation and, at each initialization of this latter, acquisition of a password proposition followed by a comparison of this proposition with the stored password. The password is stored in a controlled-erasure permanent memory unit. In order to release the workstation (1) in the event of loss of the password, provision is made for generation (D1) of a set (36) of data associated with the blocked workstation, communication (D2) of part of these data by the user to an authorized service (S), supply (D3) in return by this service of coded release data (43), acquisition (D4) of these latter by the user on the workstation, thereby resulting, in the event of compliance, in erasure of the initial password and in release of the workstation. Application in an industrial environment to control of the use of offline or network workstations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.