marcan

#!/usr/bin/python3
# Solution to the challenge at https://gist.github.com/ehmo/7f515ac6461c1c4d3e5a74f12e6eb5ea
# Sample solution: https://twitter.com/marcan42/status/1428933147660492800
#
# Given an input base image, computes two derivative images that have different
# perceptual hashes, yet differ by only one pixel.
#
# Usage: hash_bisector.py <input.png> <output_a.png> <output_b.png>
#
# Licensed under the terms of the STRONGEST PUBLIC LICENSE, Draft 1:

cyanreg

;******************************************************************************
;* Copyright (c) Lynne
;*
;* This file is part of FFmpeg.
;*
;* FFmpeg is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*

marcan

from asm import *

blob = open("image.bin", "rb").read()

start_addr = 0x08003000

patch_start = start_addr + len(blob)

assert patch_start % 4 == 0

marcan

#!/usr/bin/env python
import os, tempfile, shutil, subprocess

class AsmException(Exception):
	pass

class BaseAsm(object):
	def __init__(self, source, addr = 0):
		self.source = source
		self._tmp = tempfile.mkdtemp() + os.sep

marcan

#!/usr/bin/python3
#
# Simple Bloom filter implementation in Python 3
# Copyright 2017 Hector Martin "marcan" <marcan@marcan.st>
# Licensed under the terms of the MIT license
#
# Written to be used with the Have I been pwned? password list:
#   https://haveibeenpwned.com/passwords
#
# Download the pre-computed filter here (968MB, k=11, false positive p=0.0005):

vancluever

Disabling GNOME Tracker and Other Info

GNOME's tracker is a CPU and privacy hog. There's a pretty good case as to why it's neither useful nor necessary here: http://lduros.net/posts/tracker-sucks-thanks-tracker/

After discovering it chowing 2 cores, I decided to go about disabling it.

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