Verifying passwords on a mobile device
US9251325B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 19, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Dec 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and computer programs for verifying a password are disclosed. For example, the password can be verified on a mobile device to control user access to the mobile device. In some implementations, a mobile device includes a user interface, a main processor, and a co-processor. The user interface receives a submitted password value from a user. The main processor calls the co-processor to provide a hash chain input value based on the submitted password value. The main processor evaluates a hash chain based on the hash chain input value provided by the co-processor. Evaluating the hash chain generates a submitted password verification value. The submitted password verification value is compared to a stored password verification value stored on the mobile device. Access to mobile device functionality may be permitted or denied based on a result of the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.