Obfuscation with enumerate and XOR

     The enumerate function can be used to XOR characters of text with characters of a key. The example below shows how this can be done. In my example, my text length matches my key length.

Example code:

obfuscated = “”
clear_text = “”
text = “Something to obfuscate.”
key = “a key of some sort here”

# Enumerate our text to get the position of each character and the character itself
for index, char in enumerate(text):

    # Use the ord function to obtain unicode codes for the text and key characters
    # XOR those together, and then use the chr function to return the resultant character
    # Keep appending characters to obfuscated variable
    obfuscated += chr(ord(char) ^ ord(key[index]))

# Print a UTF-8 encoded result
print(“Obfuscated text is:”, obfuscated.encode())

# To undo it, enumerate the obfuscated text
for index, char in enumerate(obfuscated):

    # Do the same steps as before, except this time append to clear_text variable
    clear_text += chr(ord(char) ^ ord(key[index]))

# Print our clear text to the screen
print(“Original text was: “, clear_text)

Output:

Obfuscated text is: b’2O\x06\x00\rH\x06\x08GS\x1b\x02EO\x11\t\x07\x07C\t\x11\x17K’
Original text was: Something to obfuscate.