public static byte[] FromHex(string hex)
{
if (hex == null)
{
return((byte[])null);
}
if ((hex.Length & 1) == 1)
{
throw new ArgumentException("Length must be a multiple of 2");
}
byte[] numArray1 = new byte[hex.Length >> 1];
int num1 = 0;
int num2 = 0;
while (num1 < numArray1.Length)
{
byte[] numArray2 = numArray1;
int index1 = num1;
string str1 = hex;
int index2 = num2;
int num3 = index2 + 1;
int num4 = (int)(byte)((uint)CryptoConvert.FromHexChar(str1[index2]) << 4);
numArray2[index1] = (byte)num4;
ref byte local = ref numArray1[num1++];
int num5 = (int)local;
string str2 = hex;
int index3 = num3;
num2 = index3 + 1;
int num6 = (int)CryptoConvert.FromHexChar(str2[index3]);
local = (byte)(num5 + num6);
}
public static byte[] FromHex(string hex)
{
if (hex == null)
{
return(null);
}
if ((hex.Length & 1) == 1)
{
throw new ArgumentException("Length must be a multiple of 2");
}
byte[] array = new byte[hex.Length >> 1];
int i = 0;
int num = 0;
while (i < array.Length)
{
array[i] = (byte)(CryptoConvert.FromHexChar(hex[num++]) << 4);
byte[] array2 = array;
int num2 = i++;
array2[num2] += CryptoConvert.FromHexChar(hex[num++]);
}
return(array);
}
