I'm trying to convert a hexadecimal value to a string. It works fine in python, but in C#, it's just a bunch of characters.

Hex: "293A4D48E43D5D1FBBFC8993DD93949F"

Python

>>> bytearray.fromhex('293A4D48E43D5D1FBBFC8993DD93949F');
bytearray(b'):MH\xe4=]\x1f\xbb\xfc\x89\x93\xdd\x93\x94\x9f')

C#

public static string HextoString(string InputText)
{
  byte[] bb = Enumerable.Range(0, InputText.Length)
    .Where(x => x % 2 == 0)
    .Select(x => Convert.ToByte(InputText.Substring(x, 2), 16))
    .ToArray();
  return System.Text.Encoding.Unicode.GetString(bb);
  // or System.Text.Encoding.UTF7.GetString
  // or System.Text.Encoding.UTF8.GetString
  // or System.Text.Encoding.Unicode.GetString
  // or etc.
}

HextoString('293A4D48E43D5D1FBBFC8993DD93949F');
// "):MH?=]▼????????"

CodePudding user response：

Python and C# decide what to do with unprintable characters in different ways. In the case of Python, it is printing their escape sequences (eg \xe4), but in C#, the unprintable characters are printed as question marks. You may want to convert the string to an escaped string literal before you print it.

CodePudding user response：

Hi my friend you can choose one of these ways :

1. Convert Hex to String in Python:

   print(bytes.fromhex('68656c6c6f').decode('utf-8'))

2.Using codecs.decode:

import codecs

my_string = "68656c6c6f"
my_string_bytes = bytes(my_string, encoding='utf-8')

binary_string = codecs.decode(my_string_bytes, "hex")
print(str(binary_string, 'utf-8'))

3.Append hex to string

def hex_to_string(hex):
    if hex[:2] == '0x':
        hex = hex[2:]
    string_value = bytes.fromhex(hex).decode('utf-8')
    return string_value

hex_value = '0x737472696e67'
string = 'This is just a '   hex_to_string('737472696e67')

print(string)

Good luck (Arman Golbidi)