Remotely authenticated operation method
US7509687B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2003 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Nov 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The objective of this invention is to provide continuous remote authenticated operations for ensuring proper content processing and management in remote untrusted computing environment. The method is based on using a program that was hidden within the content protection program at the remote untrusted computing environment, e.g., an end station. The hidden program can be updated dynamically and it includes an inseparable and interlocked functionality for generating a pseudo random sequence of security signals. Only the media server that sends the content knows how the pseudo-random sequence of security signals were generated; therefore, the media server is able to check the validity of the security signals, and thereby, verify the authenticity of the programs used to process content at the remote untrusted computing environment. If the verification operation fails, the media server will stop the transmission of content to the remote untrusted computing environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.