Systems and methods of dynamic obfuscation pattern generation for preventing smudge attacks on touch screen devices
US10496852B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | May 26, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04883
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for dynamic guided obfuscation pattern generation for preventing smudge attacks on touch screen devices are provided. One method may include receiving a user access pattern associated with a matrix displayed on the user interface; wherein, the system generates an obfuscation pattern based upon the user access pattern. For example, the system may generate edges of the obfuscation pattern by determining potential lines that may be drawn from the first and last points of the user access pattern, which are non-repeating and non-overlapping with any edges of the user access pattern and any edges of the obfuscation pattern. The system may iteratively generate edges until a predetermined number of edges are generated or no more edges can be drawn meeting the requirement. Further, the system may display the obfuscation pattern in a point by point or edge by edge fashion on the user interface, enabling the user to draw the new pattern that disguises the user's original access pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.