Asserting and establishing provenance of media content during live streaming
US12244875B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2023 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Aug 30, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3247
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Lightweight mechanisms provide a way to assert provenance when live streaming media content and establish provenance upon playback. For example, a provenance claim generator generates a key pair including a live-stream private key and live-stream public key. The claim generator signs, with a long-term private key reliably associated with a sender, manifest metadata including the live-stream public key, thereby producing a manifest signature. During live streaming, the claim generator signs respective portions of media content with the live-stream private key, producing portion signatures for the respective portions. A provenance claim validator receives the manifest signature and manifest metadata. The claim validator verifies the manifest metadata using a long-term public key (reliably associated with the sender) and the manifest signature. During live streaming, the claim validator verifies the respective portions of the media content using the live-stream public key and the portion signatures for the respective portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.