Development

My son asked the other night if hacking computers really worked like on television, and if numbers/words really flashed across the screen. I explained to him a bit, then told him we could make something that looked like he seen on television. Below is a print out I wrote for him. Keep in mind I tried to dumb it down a bit for my 10 year old son. Hacking MD5 Hashes What is a MD5 Hash?

This has been one of the processes I’ve normally not solved in a clean or readable way. In []: a = [1,2,3,4,5,6,7,8] Taking the top output I want to return something similar to below. Out[]: [(1, 2), (3, 4), (5, 6), (7, 8)] Using a Pythonic approach this task isn’t to difficult, but there is some explaining to do. First lets look at the code: In []: a = iter([1,2,3,4,5,6,7,8]) In []: [ i for i in zip(a, a) ] Out[]: [(1, 2), (3, 4), (5, 6), (7, 8)] First we need to pass our list to the iter function, this turns our list into a iterator object:

So you may have looked at /proc/net/route before and thought how the heck am I suppose to read this. Well here is the low down. This file uses endianness to store the addresses as hexadecimal, in reverse; for example 192 as hex is C0 : In []: hex(192) Out[]: '0xc0' So lets take a look at our route file: Iface Destination Gateway Flags RefCnt Use Metric Mask MTU Window IRTT eth0 00087F0A 00000000 0001 0 0 0 00FFFFFF 0 0 0 eth0 0000FEA9 00000000 0001 0 0 1002 0000FFFF 0 0 0 eth0 00000000 01087F0A 0003 0 0 0 00000000 0 0 0 Now the first entry has a destination of 00087F0A , lets go ahead and chunk these in to hex characters:

I’ve spent a lot of time working with RPM in the last couple years, and have had the pleasure of maintaining the IUS Community . I wanted to share a small utility we use quite often called repodataParser , repodataParser is a Python class for working with RPM repositories, and used in a few of our Django applications . The idea is all RPM repositories contain a XML file containing details about the package it contains.

Using Board Game Geek’s API I wanted to create a simple Python tool for randomly picking a game to play. Below is some quick Python code to achieve my goal: from urllib2 import urlopen from lxml import etree from random import choice def get_xml(): req = urlopen('http://www.boardgamegeek.com/xmlapi/collection/flip387') return req def get_items(): xml = etree.parse(get_xml()) return xml.xpath('//item') def get_thumbnail(item): t = item.xpath('thumbnail') if len(t) == 1: return t[0].text def get_name(item): t = item.

Found an old Android App I wrote about a year back, this was the first and last Android App I wrote. Android Installable Package for Dice Roller md5 => 49e138fc4b2cf8b83bc28e780ff2411b Source Code can be viewed at Github 4.0 Holo theme on the left and 2.1 default theme on the right

Today I learned Boardgamegeek.com provides a XML API which appears to be pretty well documented. For example if I wanted to list all the Board Games I own I could do something like this in python: In [1]: from urllib2 import urlopen In [2]: from lxml import etree In [3]: req = urlopen('http://www.boardgamegeek.com/xmlapi/collection/flip387') In [4]: xml = etree.parse(req) In [5]: sorted([ i.text for i in xml.xpath('//name') ]) Out[5]: ['Arkham Horror', 'Bears!

Well that title is odd, right? What I’m wanting to do here is demonstrate one way to generate random numbers using a seed . The requirement here is we need to test a number at any given time, this will be useful if we intend to use the process as a token of sort, think RSA SecureID . Anyways I wanted to make a implementation that used Python and didn’t cost me hundreds of dollars.

I know this has been written a few time online, but the last time I needed to read up on it, it took a little long to find the answer. What I wanted to do was to chroot in to a new root, then exit that chroot via python . Below we have my current working directory that is /root , take a look at what we have in the directory:

Wanted to share a few updates and tweaks to the original Get Interface name by hardware address code. The below is broken up in to functions to help with code re-useability . If also prints all interface names and hardware address when no command line argument are present. package main import ( "net" "fmt" "os" "strings" ) // Use the net library to return all Interfaces // and capture any errors.