System and method for determining modifications of media files
US11308185B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2019 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Dec 23, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/608
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
System and methods are provided for determining whether a media file in a private network has been suspiciously modified. In embodiments, a server controlled by a service provider, for example, can generate a digital provenance for a media file from a trusted device and immutably store a hash value representing the digital provenance of the media file. Subsequent instances of the media file that are detected within the private network, in embodiments, are evaluated by the server using the digital provenance of the media file in order to identify changes to the content of the media file. In further embodiments, the server can modify the content of a suspiciously modified media file to include a marker that disclaims the content and/or otherwise indicates that the media file has been modified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.