Archive for January, 2010

DSO Nano review update

Saturday, January 16th, 2010

Screen on

I received my DSO Nano from Seeed Studio a couple days ago. It’s a digital storage oscilloscope with the form factor of a cheap media player. Justblair has an excellent review of the device. Blair had a beta version of the device though so I wanted to document the very few changes present in the production version.


ShmooCon schedule highlights

Thursday, January 14th, 2010

The hacker conference ShmooCon is coming up February 5th – 7th, 2010 in Washington D.C. They’ve posted the official schedule so I’ve decided to pull out the talks that I’m interested in:

GPU vs. CPU Supercomputing Security Shootout Collin Brack is presenting on the rise of general purpose GPU usage in security tools. A couple years ago I wrote a love letter to the FPGA hoping that one day we would be adopting it as our coprocessor of choice. It seems now that the GPU has largely taken up that role for doing massively parallel calculations. Nvidia has been pushing CUDA while Apple recently rolled out OpenCL support in Snow Leopard so all new Macs can take advantage of either implementation. Nvidia has a nice collection of resources for learning CUDA on their site.

The New World of Smartphone Security – What Your iPhone Disclosed About You Trevor Hawthorn is going to talk about attacks against the iPhone and what sort of data it exposes to the network. It’ll be interesting to see what is out there, but I’m curious as to what it shares that would make it more exposed than your average Windows machine. There’s also a talk about BlackBerries, but no mention of Android.

Build your own Predator UAV @ 99.95% Discount One of the few hardware talks so it’s a must see for me. I haven’t looked into UAVs that much but I did see a great talk at 25C3 where the live demo was controlling a plane in France from Berlin.

Bluetooth Keyboards: Who Owns Your Keystrokes? Michael Ossmann will demo over-the-air keylogging which will be super rad.

Chris Nelson, a pan-eulogy

Thursday, January 14th, 2010

I only recently found out how common my friend Chris Nelson’s name was, so I wrote him an all encompassing eulogy.

Dear Mr. Nelson,

It is with profound regret that I inform you of your recent death. On Saturday, January 9, 2010, you passed away unexpectedly at Iredell Memorial Hospital in Statesville, North Carolina at the age of 41. You, Johnny “Chris” Nelson, were born in 1968 to your parents Elmer and Louise. Your father was in the furniture business and a member of the Baptist church. You’ve been survived by your wife Kristain and sons Joshua and Noah. You will be interred this coming Friday at the United Methodist Church in Boone.

I wish to offer you my condolences. You died, yet again, that same Saturday, January 9, 2010 at the Van Dyke Hospice in Toms River, New Jersey. You, Christopher J. Nelson were 43 at the time and are survived by your wife of 21 years Sharlene and your children Julia and Eric. Born in Elizabeth, New Jersey, you settled in Jackson Township a mere 12 years ago where you were the co-owner of Executive Relocation Services in Piscataway, New Jersey.

These recent deaths came as a shock to us for we were still reeling from your untimely demise in December. You, Christopher Alan Nelson, died December 14, 2009 at the age of 24. Born in 1985, you were employed most recently as the assistant manager of a Casey’s General Store in Byron, Michigan and lived in Mount Morris for the past 12 years. You will be mourned by your parents and your brothers James and Brandon. As instructed, we directed our donation to a favorite charity in lieu of flowers.

It is with great sadness that we learned of your previous death in Leland, IA on November 23, 2009. You, Chris A. Nelson, died in your home at the ripe old age 77. You were born June 16, 1932 on a farm near Forest City and have been a farmer all your life raising both cows and crops. You will be missed by your wife of 56 years, Donna, along with your many grandchildren and great-grandchildren.

Sir, this rash of recent deaths over the last two months can only lead us to believe that you will die multiple times before your next birthday. We look forward to these events and can only assume that one day you will either be decapitated by Christopher Lambert or murdered by Jet Li to absorb your dimensional power becoming the one true Chris Nelson.

Eliot Phillips, Esq.
Executor to your Estate


Tuesday, January 12th, 2010

Shareaholic is a browser addon that streamlines the process of using bookmarking services. When it originally debuted, I wasn’t using Digg or delicious that often. I’ve recently accumulated a lot of bookmarklets that I use fairly frequently and decided to give Shareaholic another go. These are the services I’m using Shareaholic for:

  • – When I want to share a link on Twitter, is my goto. It shortens and gives you free stat pr0n.
  • Google Reader – I’ve got a fun group of people on Reader and this makes it easy to inject stories into my shared items.
  • Instapaper – I’m guessing I’d get more mileage out of this if I was an iPhone user.
  • Tumblr – Used most often for adding posts to Fucking Curated.
  • WordPress – For posting here.
  • Amazon Universal Wish List – I always wanted to make more use of this and Shareaholic makes it easy.
  • Gmail – Sending links via Gmail was all I every used Mozilla’s Ubiquity for.

I installed the extension on Firefox and now that the dev channel of Chrome for Mac has extensions I’ve got it there too.

DD-WRT wireless repeater

Monday, January 11th, 2010

WRT rides again

The Linksys WRT54G has always been one of my favorite hacking targets. It’s a wireless 802.11b/g router that originally ran Linux as its OS. Later in life this was switched to non-open VxWorks. Linksys continued to produce a Linux compatible version of the router called the WRT54GL. I believe the one pictured above was originally a Fon purchased during the transition. When I first started playing with the WRT, it was to steal internet in a new apartment while I waited for my actual connection to be installed. I was using it in client bridge mode which means it would connect via WiFi to the remote access point and serve the connection to anything on the wired ports (one of which was another WRT).

I recently dug the router out because a friend is in a similar situation. I installed the latest version of DD-WRT and discovered that it has learned a new trick. In addition to ‘client’ and ‘client bridge’ mode—bridge means the connection isn’t NAT’d—DD-WRT now has ‘repeater’ and ‘repeater bridge’ mode. The router will attach to the access point of your choice and then rebroadcast the signal as the SSID of your choosing. You do this by setting up a virtual wireless interface. I followed these instructions for setting up a universal wireless repeater. The only problem I ran into was connecting to my Airport Extreme which uses WPA2… and AES (not TKIP) by default. It has been very hard to verify that fact though. Once I figured that out, it worked just as expected. I haven’t tested it outside of my apartment yet. Next up is putting DD-WRT on a new-in-box La Fonera; it’s slightly more involved than uploading new firmware to a web interface. I’ve done it before, but it’s just no fun.

Here Wii come… « snega2usb

Sunday, January 3rd, 2010

Here Wii come… « snega2usb. USB Mass Storage SNES adapter plugged into the Wii so you can play SNES cartridges on SNES9x in the Homebrew Channel.