Explore how to convert a string to a byte array.
String stringToBeConverted = " … " ;
int stringLength = stringToBeConverted.Length;
byte[] bytes = new byte[stringLength / 2];
for (int counter = 0; counter < stringLength; counter += 2)
bytes[counter / 2] = Convert.ToByte(stringToBeConverted.Substring(counter, 2), 16);
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