Welcome, guest | Sign In | My Account | Store | Cart

Simple xor for strings

Python, 19 lines
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
class Xor:
    def __init__(self, key):
        self.__key = key
        
    def __xor(self, s):
        res = ''
        for i in range(len(s)):
            res += chr(ord(s[i]) ^ ord(self.__key[i]))
        return res
            
        
    def __normkey(self, s):
        self.__key = self.__key * (len(s) / len(self.__key))
        
    def encrypt(self, s):
        self.__normkey(s)
        return self.__xor(s)
        
    decrypt = encrypt

xor for strings

1 comment

parappo cinesi 15 years, 3 months ago  # | flag

Short is better.

from itertools import cycle, izip

def process (ss, key):
    key = cycle(key)
    return ''.join(chr(ord(x) ^ ord(y)) for (x,y) in izip(ss, key))

--
:-)
Created by Mykola Kharechko on Fri, 18 Aug 2006 (PSF)
Python recipes (4591)
Mykola Kharechko's recipes (2)

Required Modules

  • (none specified)

Other Information and Tasks