twirrim

I stumbled across this trick elsewhere several years ago, but I don't remember where. I needed to generate 10TiB of hard-to-compress data, and /dev/urandom is somewhat slow (400-ish MB/s)

Most major CPUs over the past several years have acceleration for AES-256 ciphers. So one way to produce lots of random-ish, hard to compress data is to leverage openssl.

For OpenSSL 1.1 onwards, using current epoch as the seed:

$ openssl enc -aes-256-ctr -pbkdf2 -pass pass:"$(date '+%s')" < /dev/zero

Note you could replace that call out to date with a straight password instead, but you'll always get the same data each time out the other side:

twirrim

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import sys

flipdict = {
        'a': 'ɐ',
        'b': 'q',
        'c': 'ɔ',
        'C': 'Ɔ',
        'd': 'p',

twirrim

#!/usr/bin/env python
from multiprocessing.dummy import Pool
from collections import defaultdict
import requests
import logging


def uses_compression(domain):
    logging.info(domain)
    try:

twirrim

import socket
import ssl
import datetime
from multiprocessing.dummy import Pool as ThreadPool

# Tuples containing host and port
CERTS_TO_CHECK = [("host_one", 443),
                  ("host_two", 25)]

twirrim

#!/usr/bin/env python3
import re
import socket
from subprocess import check_output


def eval_position(position, status):
    try:
        if status[position] == 1:
            return 1

twirrim

#!/usr/bin/env python

import socket
import ssl
import datetime
import smtplib
import argparse
import sys
import logging