#!/usr/bin/env python3

from coll import Collider, md5pad, filter_disallow_binstrings

# Generate a 213-way collision as a test

c = Collider(pad=b' ', blockfilter=filter_disallow_binstrings([b'\0']))

# begin the output files with hello world text

c.strcat('Hello world.')

# Diverge 8 times. That means 2^8 possibilities

for i in range(8):

print('Stage {} of 8'.format(i+1))

# we fork into 2 different possibilities of collision blocks (128 byte garbage each) here

c.diverge()

# place some text in the middle of each divergence

c.strcat('More text: {}\n'.format(i))

c.strcat('\nFinal.')

# Select the first 213 collisions to output to file

for i,data in enumerate(c.get_collisions(count=213)):

with open('out_test_%03d.txt' % i, 'wb') as f:

f.write(data)

print('Done')