104 lines
2.9 KiB
C#
104 lines
2.9 KiB
C#
namespace sp_keygen
|
|
{
|
|
internal class Program
|
|
{
|
|
static void Main()
|
|
{
|
|
Console.Write("Name: ");
|
|
string? name = Console.ReadLine();
|
|
if (string.IsNullOrEmpty(name))
|
|
{
|
|
Console.WriteLine("Please input name.");
|
|
return;
|
|
}
|
|
else if (name.Length <= 4)
|
|
{
|
|
Console.WriteLine("Name must be longer than 4 characters.");
|
|
return;
|
|
}
|
|
Console.WriteLine($"Serial: {CalcSerial(name)}");
|
|
Console.ReadKey();
|
|
}
|
|
|
|
public static string CalcSerial(string name)
|
|
{
|
|
int name_length = name.Length;
|
|
int esi = 0x18;
|
|
int ebx = 0x400;
|
|
int ebp = 0x32;
|
|
int ecx = name_length;
|
|
int eax, edx, edi, v10 = 0;
|
|
foreach (char c in name)
|
|
{
|
|
eax = c;
|
|
eax += 0x56B;
|
|
edx = eax;
|
|
edx ^= 0x890428;
|
|
esi += edx;
|
|
edx = name[3];
|
|
if (ecx <= 9)
|
|
{
|
|
edx += ecx;
|
|
edx ^= 0x209;
|
|
edx *= esi;
|
|
ebx += edx;
|
|
}
|
|
else
|
|
{
|
|
edx += ecx;
|
|
edx ^= 0x209;
|
|
edx *= ebx;
|
|
esi += edx;
|
|
}
|
|
edx = eax;
|
|
edx <<= 7;
|
|
edx += eax;
|
|
eax += edx * 8;
|
|
v10 = ebx + eax * 4;
|
|
ebx = v10; //first loop not run
|
|
}
|
|
string temp = name;
|
|
for (edi = 5; edi > 0; edi--)
|
|
{
|
|
eax = temp[edi];
|
|
ebp = eax + ebp + 0x134A;
|
|
temp = Fun_403c80(temp);
|
|
}
|
|
string temp2 = temp; //edx
|
|
edi = 1;
|
|
for (ebx = 5; ebx > 0; ebx--)
|
|
{
|
|
ecx = temp2[0];
|
|
eax = temp2[edi];
|
|
eax += 0x23;
|
|
ebp += ecx + 0x134A;
|
|
ecx = eax * 3;
|
|
ecx *= 5;
|
|
edx = ecx * 5;
|
|
eax += edx * 4;
|
|
esi += eax * 2;
|
|
temp2 = Fun_403c80(temp2);
|
|
edi++;
|
|
}
|
|
edx = temp2[5];
|
|
eax = 0x18;
|
|
ecx = v10;
|
|
eax -= edx;
|
|
ebp += ecx;
|
|
edx = temp2[2];
|
|
eax ^= ebp;
|
|
esi += 0x3c;
|
|
int eax2 = 0x1337;
|
|
eax2 -= edx;
|
|
eax2 ^= esi;
|
|
return $"LNT-{eax2}-{eax}"; //user32._wsprintfA(edx,"%s-%d-%d","LNT",eax2,eax); //esi
|
|
}
|
|
|
|
//反转字符串
|
|
public static string Fun_403c80(string name)
|
|
{
|
|
return new string(name.Reverse().ToArray());
|
|
}
|
|
}
|
|
}
|