[Keygenme] NET Keygen me1

[CodeExplorer]

 [Keygenme] .NET Keygen me1

Coded on C#.

Level: medium I think!

Protected with SmartAssembly 6: just name obfuscation!

 

NETKeygenMe1.zip

Edited July 12, 2013 by CodeCracker

[14yoKID]

@CodeExplorerHey is this your work? Seems like a really nice KeygenMe.

[CodeExplorer]

I can't remember anything about this, it was so long time ago.
From what I could see it has bugs:

        private static string #l(string A_0, uint A_1, uint A_2)
        {

...
                StringBuilder stringBuilder = new StringBuilder
                {
                    Length = 12
                };
                for (int j = 0; j < 11; j++)
                {
                    int num2 = (int)(((long)(10 - j + 1) * (long)((ulong)A_1) * (long)((ulong)A_2) + (long)((ulong)num)) % (long)length);
                    stringBuilder[j] = (char)((byte)((long)((int)(A_0[num2] + A_0[j % length] + A_0[(int)((long)j * (long)((ulong)num) % (long)length)]) + j) + (long)((ulong)num)));
                }
                stringBuilder[11] = '\0';
                text = stringBuilder.ToString();

 

num2 = 0xFFFFFFFC
so will thrown an error!
 

 

[14yoKID]

@CodeExplorer Possible for you to fix it then reupload fixed version here once you are done?