Computer security using visual authentication
US8176332B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 15, 2007 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Jan 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/36
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A physical token to the user in the form of a unique card having a grid of images thereon. Each column and row of images has a unique text string of text. In addition, each user knows a special image, not necessarily present on the token card, on which one particular point or zone functions as an extra authentication feature. Users may be queried for a username, then shown a random one of the images on their card, and asked for the row text string plus column text string identifying the image. Users are also prompted to select their particular point or zone within their known special image, which is displayed, among a jumble of other images, by the computer system requesting authorization, such display serving to authenticate the computer system to the user. The system may be combined with password protection and methods to identify a user's machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.