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Data package content filtering device and method and recording media

A content filtering and data packet technology, applied in the data field, can solve problems such as increasing hardware costs and reducing network traffic

Active Publication Date: 2005-05-11
TREND MICRO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Although the above two known architectures can be used to filter the inappropriate content in the data packets, they must first detain (queue) all the data packets and reassemble (reassemble) a whole series of data, which will reduce the network efficiency. Throughput, and in order to provide content filtering function, it will increase the cost of hardware

Method used

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  • Data package content filtering device and method and recording media
  • Data package content filtering device and method and recording media
  • Data package content filtering device and method and recording media

Examples

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Embodiment Construction

[0024] figure 2 A schematic diagram showing a network architecture of a data packet content filtering device according to an embodiment of the present invention. The data packet content filtering device 2 according to the embodiment of the present invention is responsible for capturing the transmitted data packets between other terminal devices in the network 10 and the user terminal device 11 and performing content filtering. Taking virus filtering as an example, the data packet content filtering device 2 is responsible for collecting a data packet (packet) delivered to other terminal devices in the network 10 or using the terminal device 11, and performing content scanning to detect whether (1) the data packet contains A part of continuous restricted content, and (2) whether the fragment data in all packets (packets) with the same communication identification code detected in the past can form the remaining restricted content, and if so, block this data packet to prevent th...

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Abstract

A content filtering device of data package consists of storage unit storing one defined data string (DDS) which represents restrictive content not allowed to be transmitted; a processing unit working as receiving data package from network terminal for obtaing data section (DS) in package, comparing DC with DDS and checking whether DDS is contained in DS or not as well as DDS can be formed by DS received now and before check or not confirming that data package is not to be sent to assigned destination if it is.

Description

technical field [0001] The invention relates to a content filtering device and method, in particular to a device and method for scanning the data in the data packets transmitted in the network and filtering the content. technical background [0002] A content filtering system is a system that searches for computer viruses or restrictive themes (such as pornography, violence, etc.) Whether there is a computer virus pattern and its virus type in the data content, if detected, a clean-up system is used to remove the virus pattern in the data content. In order to adapt to the development of the Internet, the virus scanning system no longer only detects whether the data files in the floppy disk drive or the hard disk drive are virus codes, but also detects the data in the data packets circulating on the network. [0003] Taking the TCP / IP communication protocol as an example, a TCP / IP packet is composed of a header area and a data area, and each layer of the protocol has its own...

Claims

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Application Information

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IPC IPC(8): G06F11/00G06F11/08G06F15/16
Inventor 蔡木本
Owner TREND MICRO INC
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