print "evil"
"""
collider = Collider(blockfilter=filter_disallow_binstrings([b'\0', b"'''"]))
prefix1 = b"""#!/usr/bin/env python2
# -*- coding: utf-8 -*-
#"""
prefix2 = b"""\ndiff = '''"""
# Ensure prefix is a multiple of 64 bytes
prefix = prefix1 + md5pad(prefix1 + prefix2, b' ') + prefix2
# Load the first half of the collision files that opens the 'diff' variable delcaration
collider.bincat(prefix)
# Fill in the 'diff' variable with 2 different blocks that may be chosen
collider.safe_diverge()
postfix = b"""'''
same = '''"""
c1, c2 = collider.get_last_coll()
postfix += c1
postfix += b"""'''
if (same == diff):
print "good"
startchars = q - (64 * 3)
if not first:
first = i
offset = i - startchars
else:
second = startchars + offset
compdata[q] = 0
break
if not (first and second):
raise Exception('error: did not find marker strings')
# Splice in the collision blocks according to the obtained offsets
collider = Collider(blockfilter=filter_disallow_binstrings([b'\0']))
collider.bincat(compdata[:first])
collider.safe_diverge()
c1, c2 = collider.get_last_coll()
collider.bincat(compdata[first + 128:second] + c1 + compdata[second + 128:])
# Write out good and evil binaries
cols = collider.get_collisions()
GOOD = 'out_c_good'
EVIL = 'out_c_evil'
with open(GOOD, 'wb') as good:
good.write(next(cols))
with open(EVIL, 'wb') as evil:
evil.write(next(cols))
if not first:
first = i
offset = i - startchars
else:
second = startchars + offset
compdata[q] = 0
break
if not (first and second):
raise Exception('error: did not find marker strings')
# Splice in the collision blocks according to the obtained offsets
collider = Collider(blockfilter=filter_disallow_binstrings([b'\0']))
collider.bincat(compdata[:first])
collider.safe_diverge()
c1, c2 = collider.get_last_coll()
collider.bincat(compdata[first+128:second] + c1 + compdata[second+128:])
# Write out good and evil binaries
cols = collider.get_collisions()
GOOD = 'out_c_good'
EVIL = 'out_c_evil'
with open(GOOD, 'wb') as good:
good.write(next(cols))
with open(EVIL, 'wb') as evil:
evil.write(next(cols))
else:
print "evil"
"""
collider = Collider(blockfilter=filter_disallow_binstrings([b'\0', b"'''"]))
prefix1 = b"""#!/usr/bin/env python2
# -*- coding: utf-8 -*-
#"""
prefix2 = b"""\ndiff = '''"""
# Ensure prefix is a multiple of 64 bytes
prefix = prefix1 + md5pad(prefix1 + prefix2, b' ') + prefix2
# Load the first half of the collision files that opens the 'diff' variable delcaration
collider.bincat(prefix)
# Fill in the 'diff' variable with 2 different blocks that may be chosen
collider.safe_diverge()
postfix = b"""'''
same = '''"""
c1, c2 = collider.get_last_coll()
postfix += c1
postfix += b"""'''
if (same == diff):
print "MD5 is secure!"