public static byte[] HexToBytes(string hexInput)
{
if (string.IsNullOrEmpty(hexInput))
{
return(null);
}
string buffer;
if (hexInput.Length % 2 != 0)
{
buffer = "0" + hexInput.ToUpperInvariant();
}
else
{
buffer = hexInput.ToUpperInvariant();
}
List <byte> bytes = new List <byte>();
for (int i = 0; i < buffer.Length; i += 2)
{
if (!(CharUtils.IsLegalHex(buffer[i]) && CharUtils.IsLegalHex(buffer[i + 1])))
{
return(null);
}
bytes.Add(HexToByte(buffer.Substring(i, 2)));
}
return(bytes.ToArray());
}
public static byte[] BinaryToBytes(string binaryInput)
{
if (string.IsNullOrEmpty(binaryInput))
{
return(null);
}
string buffer;
if (binaryInput.Length % 8 != 0)
{
StringBuilder sb = new StringBuilder();
int left = 8 - (binaryInput.Length % 8);
for (int i = 0; i < left; i++)
{
sb.Append('0');
}
sb.Append(binaryInput);
buffer = sb.ToString();
}
else
{
buffer = binaryInput;
}
List <byte> bytes = new List <byte>();
for (int i = 0; i < buffer.Length; i += 8)
{
if (!(CharUtils.IsLegalHex(buffer[i]) && CharUtils.IsLegalHex(buffer[i + 1]) && CharUtils.IsLegalHex(buffer[i + 2]) && CharUtils.IsLegalHex(buffer[i + 3]) &&
CharUtils.IsLegalHex(buffer[i + 4]) && CharUtils.IsLegalHex(buffer[i + 5]) && CharUtils.IsLegalHex(buffer[i + 6]) && CharUtils.IsLegalHex(buffer[i + 7])))
{
return(null);
}
bytes.Add(BinaryToByte(buffer.Substring(i, 8)));
}
return(bytes.ToArray());
}
