caesar-bruteforce.py

#!/usr/bin/env python
# coding=utf-8

## Brute force a string encrypted with Caesar's Cipher

from caesar import caesar_d

keymap = {
    "a": 0,
    "b": 1,
    "c": 2,
    "d": 3,
    "e": 4,
    "f": 5,
    "g": 6,
    "h": 7,
    "i": 8,
    "j": 9,
    "k": 10,
    "l": 11,
    "m": 12,
    "n": 13,
    "o": 14,
    "p": 15,
    "q": 16,
    "r": 17,
    "s": 18,
    "t": 19,
    "u": 20,
    "v": 21,
    "w": 22,
    "x": 23,
    "y": 24,
    "z": 25
}

def bruteforce(str):
    outs = []
    for i in range(26):
        outs.append(caesar_d(i, str))
    return outs

caesar.py

#!/usr/bin/env python
# coding=utf-8

## Caesar Cipher in Python

keymap = {
    "a": 0,
    "b": 1,
    "c": 2,
    "d": 3,
    "e": 4,
    "f": 5,
    "g": 6,
    "h": 7,
    "i": 8,
    "j": 9,
    "k": 10,
    "l": 11,
    "m": 12,
    "n": 13,
    "o": 14,
    "p": 15,
    "q": 16,
    "r": 17,
    "s": 18,
    "t": 19,
    "u": 20,
    "v": 21,
    "w": 22,
    "x": 23,
    "y": 24,
    "z": 25
}

def caesar_e(key, text):
    text_u = text.lower()
    output = ""
    for i in text_u:
        if i in keymap:
            p = keymap[i]
            output += keymap.keys()[keymap.values().index((p + key) % 26)]
    return output.upper()

def caesar_d(key, text):
    return caesar_e(-key, text).lower();