Client-side player file and content license verification
US8925109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2010 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Oct 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/123
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for verifying a message based on application of a hashing algorithm. In one aspect, a method includes obtaining a license, from a remote server, for a content item to be presented using a player file executed by a multimedia player on a computing device. The license includes an encryption key and an authorization to present the content item using one or more authorized player files. A particular player file is received for use in presenting the content item, and a determination is made whether the particular player file is authorized for use in presenting the content item based on the authorization. The content item is decrypted using the encryption key, and the content item is presented using the particular player file in accordance with the determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.