private static byte[] ConvertFromKey(string key, byte base2)
{
if (Base32Decoder.IsEmpty(key))
{
return(null);
}
uint num = (uint)Math.Floor((double)base2 / 8.0 * (double)key.Length);
byte[] array = new byte[num];
if (Base32Decoder.IsEmpty(array))
{
return(null);
}
for (int i = 0; i < array.Length; i++)
{
array[i] = 0;
}
int num2 = 0;
int num3 = key.Length - 1;
byte b = 0;
while (num3 >= 0 && (long)num2 < (long)((ulong)(num * 8u)))
{
byte b2 = Base32Decoder.CharToVal(key[num3--]);
int num4 = (int)array[num2 / 8] + ((int)b2 << num2 % 8) + (int)b;
b = (byte)(num4 / 256);
array[num2 / 8] = (byte)(num4 % 256);
num2 += (int)base2;
}
return(array);
}
private static byte CharToVal(char c)
{
c = char.ToLower(c);
if ('0' > c || c > '9')
{
return((byte)Base32Decoder.TrimNegative((int)((byte)(c - 'a' + '\n'))));
}
return((byte)Base32Decoder.TrimNegative((int)((byte)(c - '0'))));
}
public License Deserialize(string key, IDecoder decoder)
{
byte[] data = Base32Decoder.Decode(key);
byte[] buffer = decoder.Decode(data);
License result;
using (MemoryStream memoryStream = new MemoryStream(buffer))
{
License license = NewLicenseSerializer.ReadLicenseFromStream(memoryStream);
result = license;
}
return(result);
}
public License Deserialize(string key, IDecoder decoder)
{
byte[] array = Base32Decoder.Decode(key);
if (OldLicenseSerializer.IsEmpty(array))
{
return(null);
}
byte[] array2 = decoder.Decode(array);
if (OldLicenseSerializer.IsEmpty(array2))
{
return(null);
}
License result;
using (MemoryStream memoryStream = new MemoryStream(array2))
{
License license = OldLicenseSerializer.ReadLicenseFromStream(memoryStream);
result = license;
}
return(result);
}
public static byte[] Decode(string str)
{
return(Base32Decoder.ConvertFromKey(str, 5));
}