Content inspection using partial content signatures
US8607066B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2008 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Apr 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1441
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods and apparatus for a content item inspection. A plurality of portions of a content item are received in a buffer, the buffer divided into a plurality of segments. A partial signature of the content item is computed using the received portions of the content item in a most recently received segment and a partial signature computed for a preceding segment. The computed partial signature is compared against a plurality of partial signatures associated with trustworthy content items. If a matching partial signature associated with a trustworthy content item is found for the computed partial signature, the most recently received segment is allowed to be transmitted to a device that requested the content item.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.