Python XOR string

If you want to Python XOR two strings, it means you want to XOR each character of one string with the character of the other string. You should then XOR ord() value of each char or str1 with ord() value of each char of str2.

We have utilized the iterator method with the zip() method, ord() method, join() method, and “^” operator for this purpose.

Source: https://stackoverflow.com/

Python XOR string

Simple example code XOR two strings in Python.

def xor_two_str(a,b):
    xored = []
    for i in range(max(len(a), len(b))):
        xored_value = ord(a[i%len(a)]) ^ ord(b[i%len(b)])
        xored.append(hex(xored_value)[2:])
    return ''.join(xored)
    
print xor_two_str("12ef","abcd")

Or in one line:

def xor_two_str(a,b):
    return ''.join([hex(ord(a[i%len(a)]) ^ ord(b[i%(len(b))]))[2:] for i in range(max(len(a), len(b)))])

print xor_two_str("12ef","abcd")

The following function is returning the result hex() which returns a string.

def change_to_be_hex(s):
    return hex(int(s,base=16))

You should use the ^ operator on integers.

def change_to_be_hex(s):
    return int(s,base=16)
    
def xor_two_str(str1,str2):
    a = change_to_be_hex(str1)
    b = change_to_be_hex(str2)
    return hex(a ^ b)
print xor_two_str("12ef","abcd")

Output:

Do comment if you have any doubts or suggestions on this Python xor topic.

Note: IDE: PyCharm 2021.3.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.