System and method for authenticating streamed data
US8078867B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2005 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Jun 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/123
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method that facilitates the authentication of streamed data received at a device, where authentication information is not distributed over the data stream. One embodiment of a method of authenticating data comprises the steps of: receiving, at the device, data in a plurality of packets transmitted by a data server; submitting a request for a server-computed authentication value to a data authentication server, wherein the data authentication server is adapted to compute the server-computed authentication value based on a subset of the data transmitted by the data server; receiving, at the device, the server-computed authentication value from the data authentication server in response to the request; computing a device-computed authentication value based on a subset of the data received at the device corresponding to the subset of the data transmitted by the data server; and determining if the subset of the data received at the device is authentic by comparing the server-computed and device-computed authentication values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.