Securing multifactor authentication
US9639825B1 · kind B1 · utility
16Cited by
20References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2011 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Jul 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/77
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In certain embodiments, a system receives a request sent by a device to authorize an operation. The system initiates display of an image encoding a challenge code to allow the device to capture the image and extract the challenge code. The device calculates a response using the challenge code and a seed, and sends the response to the system. In certain examples, the device may send the request over a first channel and the response over a second channel distinct from the first channel. In other examples, the device displays the response and a user inputs the response into a computing system to send to the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.