Operation of a dual instruction pipe virus co-processor
US8443450B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Oct 30, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/031
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Circuits and methods are provided for detecting, identifying and/or removing undesired content. According to one embodiment, a method for virus processing content objects is provided. A type associated with a content object is determined. Based on the type, a subset of instructions is read from a virus signature memory containing intermixed op-codes of a first instruction type associated with primitive instructions and of a second instruction type associated with Content Pattern Recognition (CPR) instructions. Then, instructions of the first instruction type are assigned for execution to a primitive instruction pipe of a virus co-processor and instructions of the second instruction type are assigned for execution to a CPR instruction pipe of the virus co-processor. An instruction is executed by the CPR instruction pipe, including accessing a portion of the content object from a system memory and comparing the portion of the content object against a string associated with the instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.