Method and device for verifying the validity of an electronic document
US10756903B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2018 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Apr 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and device for verifying the validity of an electronic document is provided. A device for capturing images and capturing a sequence of images displayed by a device for presenting the electronic document is activated. The sequence of images may include different two-dimensional barcodes displayed successively one after the other, where the two-dimensional barcodes represent a signature of the electronic document and parts of the electronic document. The two-dimensional barcodes are decoded, and the validity of the signature is verified by means of a public key. A message representing the result of the verification is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.