Strong authentication token with visual output of PKI signatures
US8966268B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2012 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Dec 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A handheld authentication device comprising a data processor and a display is adapted to: generate an input value; submit the input value to an asymmetric cryptographic operation; obtain the result of said asymmetric cryptographic operation; generate an authentication message substantially comprising the result of the asymmetric cryptographic operation; encode the authentication message into one or more images; and display these images on the display. A method for securing computer-based applications remotely accessed by a user comprises capturing images displayed on the display of an authentication device of the user whereby these images have been encoded with an authentication message generated by the authentication device and whereby the authentication message comprises the result of an asymmetric cryptographic operation on an input value; decoding the images to retrieve the authentication message; retrieving the result of the asymmetric cryptographic operation from the authentication message; verifying the authentication message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.