Python scoreBytes Examples

Example #1

File: challenge6.py Project: dvadas/cryptopals

def crackXor(bytes):
	maxScore = None
	for key in range(256):
		xored = [byte ^ key for byte in bytes]
		score = scoreBytes(xored)
		if maxScore < score:
			maxScore = score
			maxKey = key
			maxBytes = xored
	
	return maxKey, maxBytes, maxScore

Example #2

File: challenge4.py Project: dvadas/cryptopals

#!/usr/bin/env python

from util import getBytes
from ascii import scoreBytes

maxScore = None
for line in open('challenge4.txt'):
    line = line.strip()
    bytes = getBytes(line)

    for key in range(256):
        xored = [byte ^ key for byte in bytes]
        score = scoreBytes(xored)
        if maxScore < score:
            maxScore = score
            maxKey = key
            maxBytes = xored

print maxScore
print maxKey
print maxBytes

string = ''.join(map(chr, maxBytes))
print string

Example #3

File: challenge4.py Project: dvadas/cryptopals

#!/usr/bin/env python

from util import getBytes
from ascii import scoreBytes

maxScore = None
for line in open('challenge4.txt'):
	line = line.strip()
	bytes = getBytes(line)

	for key in range(256):
		xored = [byte ^ key for byte in bytes]
		score = scoreBytes(xored)
		if maxScore < score:
			maxScore = score
			maxKey = key
			maxBytes = xored

print maxScore
print maxKey
print maxBytes

string = ''.join(map(chr, maxBytes))
print string