EditPlus registration code generator (js Code Implementation)

Today, my colleague was surprised to tell me that I had found an online EditPlus registration code generator and I had to check it out.
There are too many viruses on the exe registration machine, so the pure js online registration machine can be assured.

I found out the algorithm from the disassembly of another Registrar. what's even more surprising is that Demon, the author, had just obtained a legal professional qualification certificate and admired it.

The main js function is as follows:Copy codeThe Code is as follows: function generate_editplus_regcode (username ){
Var list = [0, 49345, 49537,320,499 rows, numbers, 1728,1920, numbers, 3264,3456, numbers, 53185, 52865, 3648,2560, 52.165, 52097, numbers, numbers, 6336,6528, numbers, 56257,55937, 6720,7680, large, small, medium, 56385, 5120, large, 5440,55041, 6080,5760, large, 4800,4992, large, large, 4160,61441, large, small, medium, small, listen, listen, 64705, 64897, listen, 16320,16000, listen 89,64001, 15040,15133, weight, 10560,60161, 11200,000080, weight, expires, 8640,8320, expires, 41921,41601, 25152,26112, expires 89,42881, expires 32,42241, expires, 28608, 28288, expires, expires, expires, expires, 47297,47489, expires, 48961,32000, expires, expires, 29888-30080, expires, 29504,13, 29120,28800, 45121,20133, expires, 20800,37633, clerk, clerk, clerk, 19904,19584, 35905,17408, 33985,34177, 17728,34561, 182.16,18048, 342.16,33281, 17088,17280, 33601,16640, 33217,32897, 16448];
Var hexchars = ['0', '1', '2', '3', '4', '5', '6', '7', '8 ', '9', 'A', 'B', 'C', 'D', 'E', 'F'];
Var regcode = new Array (29 );
Var I = 0, j = 0, k = 0;
Var len, temp, sum, result;
Username = usernamereplace (/^ \ s + | \ s + $/g ,"");
For (I = 0; I <5; I ++, k ++)
{
For (j = 0; j <5; j ++, k ++)
{
Regcode [k] = hexchars [parseInt (Mathrandom () * 16)];
}
If (k = 29) break;
Regcode [k] = '-';
}
Len = usernamelength;
Sum = 1;
For (I = 0; I <len; I ++ ){
Sum + = usernamecharCodeAt (I );
}
Temp = (parseInt (sum + 23)/6) + 3) * 7% 16;
Regcode [6] = hexchars [temp & 0xF];
Sum = 1;
For (I = 0; I <len; I ++ ){
Sum + = usernamecharCodeAt (I );
}
Temp = parseInt (3 * sum + 39)/8) % 16;
Regcode [9] = hexchars [temp & 0xF];
Sum = 1;
For (I = 0; I <len; I ++ ){
Sum + = usernamecharCodeAt (I );
}
Temp = parseInt (3 * sum + 19)/9) % 16;
Regcode [7] = hexchars [temp & 0xF];
Sum = 1;
For (I = 0; I <len; I ++ ){
Sum + = usernamecharCodeAt (I );
}
Temp = parseInt (sum + 10)/3) * 8% 16;
Regcode [10] = hexchars [temp & 0xF];
Sum = 1;
For (I = 0; I <len; I ++ ){
Sum + = usernamecharCodeAt (I );
}
Temp = (parseInt (9 * sum + 10)/3) + 36) % 16;
Regcode [4] = hexchars [temp & 0xF];
Sum = 1;
For (I = 0; I <len; I ++ ){
Sum + = usernamecharCodeAt (I );
}
Temp = parseInt (5 * sum + 11)/5) % 16;
Regcode [8] = hexchars [temp & 0xF];
Result = 0;
For (I = 0; I <len; I ++ ){
Result = (result> 8) & 0xFF) ^ list [usernamecharCodeAt (I) ^ (result & 0xFF)];
}
Result = resulttoString (16) toUpperCase ();
Regcode [2] = resultcharAt (0 );
Regcode [3] = resultcharAt (1 );
Len = regcodelength;
Result = 0;
For (I = 2; I <len; I ++ ){
Result = (result> 8) & 0xFF) ^ list [regcode [I] toString () charCodeAt (0) ^ (result & 0xFF)];
}
Result = resulttoString (16) toUpperCase ();
Regcode [0] = resultcharAt (0 );
Regcode [1] = resultcharAt (1 );
Return regcodejoin ("");
}