A message filtering method and system
A packet filtering and packet technology, applied in the field of information security, can solve problems such as poor packet filtering timeliness
Active Publication Date: 2019-11-15
BEIJING LEADSEC TECH +1
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[0004] In view of this, the present invention provides a message filtering method and system to solve the problem in the prior art that other function codes in the message need to be manually associated with the main function code, resulting in poor timeliness of message filtering. The scheme is as follows:
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein...
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The invention discloses a message filtering method. The method comprises the steps of in currently to-be-transmitted message data, determining a target message in real time, wherein the target message is a complete message; determining a target function code in the target message according to a preset determining rule; judging whether the target function code exists in a preset master function list or not, and if the target function code exists in the preset master function list, determining the target function code as the master function code corresponding to the target message; and matching the master function code with a set white list, and if the matching is successful, transmitting the target message. According to the method, whether the target function code of the message exists in the preset master function list or not is judged, if the target function code exists in the preset master function list, the target function code is determined as the master function code of the message, the master function code of the message and the set white list are matched, if the matching is successful, the complete message is directly transmitted without association with other function codes, and the message filtering timeliness is improved.
Description
technical field [0001] The invention relates to the field of information security, in particular to a message filtering method and system. Background technique [0002] With the rapid development of network communication technology, there are more and more various communication protocols used for network communication. When the existing communication protocol is constructed, there will be some security loopholes. Hackers can use these loopholes to write corresponding messages and transmit them to the network communication system, attacking the network communication system, and causing the network communication system to be paralyzed. At present, a white list filtering method is generally used to detect transmitted packets for the purpose of security protection. [0003] After research, the inventor found that in the existing white list filtering, only the main function code in the message is filtered, and the realization of the message function is often realized by associat...
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IPC IPC(8): H04L29/06
CPCH04L63/0245H04L63/1433
Inventor 张帅孟庆森
Owner BEIJING LEADSEC TECH