System and method for capturing authenticatable digital media files on connected media-capture devices
US12231577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2022 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Mar 23, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A media-capture device initiates acquisition of sensor data samples representing analog phenomena; encodes the samples; generates a to-be-signed data structure comprising the encoded samples and/or cryptographic hashes of the samples; generates a cryptographic hash of the to-be-signed data structure; transmits a time-stamping request to a time-stamping server, the time-stamping request comprises the cryptographic hash of the to-be-signed data structure, wherein the time-stamping server generates a signed time-stamp; generates a digital signature using the to-be-signed data structure, the signed time-stamp, a private cryptographic key, and a signed certificate for the corresponding public cryptographic key; and generates a second data structure comprising the samples, the to-be-signed data structure, and the digital signature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.