Method for extracting unknown protocol features
An extraction method and protocol feature technology, which is applied in the field of extraction of unknown protocol features, can solve problems such as monitoring and detection of channel models that cannot steal secrets, and achieve the effect of reducing the number and efficient identification
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[0035] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0036] Such as figure 1 As shown, an extraction method of unknown protocol features, it includes the following steps:
[0037] S1. Randomly divide the data frame of each protocol in the data set into two parts, segment each part by byte, and count the number of occurrences and frequency of each byte to obtain frequent bytes;
[0038] S2. Use the Jaccard parameter to screen the frequent bytes, and select the frequent bytes corresponding to each protocol;
[0039] S3. Splicing the consecutive frequently occurring bytes corresponding to a protocol to obtain the characteristic long string, that is, the frequent string, and filtering out the characteristic long string whose number of bytes is greater than 50% of the total number of bytes in the...
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