WebQQ web page hash encryption algorithm PHP version

The hash encryption algorithm we found on QQ is a js version. Next we will change it to the php version of the encryption algorithm based on the hash encryption algorithm of js version. I hope the method will be helpful to you.

Due to the recent severe mass mailing of QQ junk information, the official team chose to detail the implementation of some WebQQ functions. The POST value obtained from friends has an additional hash parameter.

This hash is encrypted in js.

Below is the js source code

The Code is as follows:

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<Script type = "text/javascript"> Function getHash (B, I ){ For (var a = I + "password error ", S = "", J = [];) if (s. length <= a. length ){ If (s + = B, s. length = a. length) break } Else { S = s. slice (0, a. length ); Break } For (var d = 0; d <s. length; d ++) j [d] = s. charCodeAt (d) ^ a. charCodeAt (d ); A = ["0", "1", "2", "3", "4", "5", "6", "7", "8 ", "9", "A", "B", "C", "D", "E", "F"]; S = ""; For (d = 0; d <j. length; d ++) s + = a [j [d]> 4 & 15], S + = a [j [d] & 15]; Return s; } </Script>

Convert to PHP version for processing. The source code is as follows:

The Code is as follows:

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<? Php /** * The POST parameter Hash algorithm when obtaining friends * * Public * @ Param string $ qq number * @ Param string $ ptwebqq in cookies * @ Return string */ Function get_hash ($ qq, $ ptwebqq) { For ($ a = $ ptwebqq. "password error", $ s = "", $ j = array ();;) { If (strlen ($ s) <= strlen ($ )) { $ S. = $ qq; If ($ s = strlen ($ a) break; } Else { $ S = substr ($ s, 0, strlen ($ )); Break; } }   For ($ d = 0; $ d <strlen ($ s); $ d ++) { $ J [$ d] = uniord (substr ($ s, $ d) ^ uniord (substr ($ a, $ d )); }   $ A = array ("0", "1", "2", "3", "4", "5", "6", "7 ", "8", "9", "A", "B", "C", "D", "E", "F "); $ S = ""; For ($ d = 0; $ d <count ($ j); $ d ++) { $ S. = $ a [$ j [$ d]> 4 & 15]; $ S. = $ a [$ j [$ d] & 15]; }   Return $ s; }   /** * Simulate the JavaScript charCodeAt Function * * Protected * @ Param string $ str * @ Return int */ Function uniord ($ str) { List (, $ ord) = unpack ('n', mb_convert_encoding ($ str, 'ucs-4be ', 'utf-8 '));   Return

$ Ord;
}
 
/* End of file commons. php */