Information hiding through time synchronization
US7337466B2 · kind B2 · utility
7Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2003 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | May 26, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Authenticating a user operating a portable computing device includes causing a sequence of images to be shown on a display, accepting an input selection from the user indicating that a currently displayed image of the sequence of images corresponds to a portion of the user's password, the user's password being known by the portable computing device, correlating the input selection to the currently displayed image, and allowing access to the portable computing device when the input selection and the currently displayed image temporally correspond to the portion of the user's password.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.