Validating media content retrieved from untrusted networks

US11588889B1 · kind B1 · utility

Assignee

• AMAZON TECHNOLOGIES, INC. · US

Inventors

• Selvanayagam Sendurpandian · Livermore, US
• Ross Bevan Engers · Cape Town, ZA
• Luke Curley · San Francisco, US
• Nikhil Purushe · San Francisco, US
• Andrew Gilmore Francis · San Francisco, US
• Daniel Lin · San Francisco, US
• Tarek Amara · Burlington, CA
• Shuhan Jin · Foster City, US
• Levi Lovelock · San Francisco, US
• Berk Taner · San Mateo, US
• Yann Landry · San Francisco, US
• Neeraj Satish Joshi · Newark, US
• Jean-Sebastien Royer · San Francisco, US

Key dates

• Filing date: Mar 31, 2021
• Grant date: Feb 21, 2023
• Expiry date: Mar 31, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2209/60
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A processing service of a provider network may protect media content from being tampered with when it is transmitted from the provider network/transcoder to untrusted networks (e.g., third-party networks/CDNs) and to a media player. The processing service (e.g., the transcoder) generates a public and a private key. The service uses the private key to digitally sign content portions (e.g., video frames) before distribution to untrusted CDNs. The provider network creates a manifest that includes the public key. To play the media content, the media player obtains a manifest that includes the public key (via a secure/trusted connection with the provider network). The media player may then obtain the media content from an untrusted edge server/CDN and validate it using the public key that was separately obtained from the manifest (to verify the content was not tampered with).