Example Analysis of encryption algorithm for android likes, comments and Live on-screen comment

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The steps of the Douyin core agreement are:

1. Insert a fixed key rstr in the query string

2. Sort the query string by keystroke and take the value, and escape the space and + to a

3. Then take the MD5; if the timeline & 1 is 1, then take one more MD5

4. The MD5 results are sorted twice with 5-6 and 1-4, respectively.

5. Sort the results of 4 again in dislocation to get 26 characters.

6. Give 18 bits to the as and cp fields respectively, and append them to the end of the query string

In the latest version of SDK, there is a new mas field auxiliary check, which can be ignored, as long as you set the version_code of the query string to 169. you can skip this field.

In addition, aid is a required field, and other fields that have nothing to do with the API itself can be removed.

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Douyin protocol and volcano small video communication protocol

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