http://www.reddit.com/r/codes/comments/w8dy6/guys_can_you_help_me_crack_this/

gistfile1.py

#!/usr/bin/env python

import itertools, re

def explode(str):
    return re.split(r'(\W+)', str)[:-1]

def reverseinplace(str):
    r = [ w[::-1] if re.match(r'\w+$', w) else w for w in explode(str) ]
    return ''.join(r)

def pads(length):
    for c in itertools.product([-1, 0, 1], repeat=length):
        yield c

def applypad(str, pad):
    return ''.join( chr((ord(c) - ord('A') + p) % 26 + ord('A')) \
                    for c, p in zip(str, pad) )

def findfuzzyword(word, wordlist):
    out = set()
    for p in pads(len(word)):
        fuzzed = applypad(word, p)
        if fuzzed in wordlist:
            out.add(fuzzed)
    return out

cipher = 'Eiv eanegduce rg div trec diduj en gniityna. ydit tnonac fc ddik ' \
         'mu. b tnemom tciv piaj epweiv bommi gitna.'
cipher = cipher.upper()

words = set( w.upper().rstrip() for w in file('/usr/share/dict/words') )

reversed = reverseinplace(cipher)

for w in explode(reversed):
    if not re.match(r'\w+$', w):
        continue
    print w, '->', findfuzzyword(w, words)