System and method for password throttling
US6883095B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2000 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Oct 29, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1441
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for authenticating a user includes receiving a request for access from a user claiming to be a particular user. A first challenge having a first level of complexity is transmitted to the user. A response to the transmitted first challenge is transmitted. A determination is made as to whether or not the transmitted response authenticates the user as the particular user. The requested access by the user is allowed if the transmitted response authenticates the user. However, a second challenge having a second level of complexity, greater than the first level of complexity, is transmitted to the user if the transmitted response does not authenticate the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.