internal static byte[] DecodeHexString(string s)
{
string hexString = X509Utils.DiscardWhiteSpaces(s);
uint cbHex = (uint)hexString.Length / 2;
byte[] hex = new byte[cbHex];
int i = 0;
for (int index = 0; index < cbHex; index++)
{
hex[index] = (byte)((HexToByte(hexString[i]) << 4) | HexToByte(hexString[i + 1]));
i += 2;
}
return(hex);
}