Atlantic Monthly

June 8th, 2007

I got a couple of emails from folks looking for a link mentioned in an article that ran in the Atlantic Monthly recently. My blog on the SEG electronics center has been shuffled into the archives; you can read it here.

I’m late on last month’s name that ware, my apologies. I have the ware photos ready to go, but I’ve just spent the last three weeks in factories in China without a minute to spare (not to mention very intermittant internet access). The good news is I’m heading home and I have some more photos and stories to share, and chumbys are rolling off the line now, finally!

Important Clarifications

May 16th, 2007

There are some important misconceptions that need to be corrected.

1. I did no technical work on the Xbox 360 hack. Felix Domke (tmbinc) is the true technical genius behind the hack — please give him proper credit for his hard work. My role in this is entirely diplomatic; I was consulted because my previous work on the Xbox meant I was already familiar with the legal risks and the best contact methods. And, as with any hack, there were many other unsung heros involved who are forced to choose anonymity due to risks and circumstances out of their control.

2. No money was involved. The hack was reported to Microsoft per legal requirements, and per security industry standard operating practice. It is no coincidence that this is the exact same path that was taken on the first Xbox hacks (Hypertransport, 007 and Dashboard). The difference is that this time, Microsoft took the time to listen, and eventually invited us to their house to give a talk.

3. Finally, this was the opportunity to tell Microsoft that locking out low-level code development (and consequently Linux) will never work. It’s neither sound technically nor good for business development in the long term. We believe they have listened. Although this approach has never been tried before, based on their reactions, future Microsoft devices may not lock out homebrew; at least, we have planted the seeds of a feasible technical and business path to such a future in key minds at Microsoft.

In closing, I don’t think Microsoft is right in locking down hardware to outside developers; I also don’t think that the pirates are right, either. As a result, I must walk a fine gray line, and I am continuously faced with many a difficult and ambiguous decision.

And, to quote Felix, who posted in the comment round on a previous blog entry:

“The reason to stay anonymous so long was…about not getting sued. But after Bluehat, it become clear that this was no issue anymore.

And my strict demand for working on a project like free60 is that i can publish stuff in public, under my real name, without hiding anything, and still be able to sleep well at night. This would not have been possible if we hadn’t worked together with Microsoft.”

The X-ray Eye — Now in Full Motion

May 14th, 2007

I love looking at PCBs using x-rays. Great for failure analysis. One of the coolest things, I thought, was seeing a PCB tilt in real-time; you get a good sense of the actual spacial relationship between all the layers on a PCB. I took a series of stills today and strung them together into this animation so I could share the experience with you (you’ll need an embedded Flashplayer plug-in to view this movie):

Thanks to concisys (a San Diego-based contract manufacturer) for letting me use their tool to take these images!

Bluehat07 @ Microsoft

May 11th, 2007

SEND HELP I”M AT MICROSOFT AND HELD HOSTAGE BY BLUESNIPER!!!!

Okay, so the picture is for real but the caption isn’t. (RSnake has a much better version of the photo here). I am at Microsoft, but the guy on the left isn’t a Microsoft lawyer. He’s John Hering, a founder of Flexilis, inventor of the BlueSniper device for long-range Bluetooth hacking attacks, and all around brilliant guy. John was also a presenter at this years’ Bluehat and he was told to look menacing for a photo…but he just looks so friendly it wasn’t believable. So, I figured I’d add myself to the photo in the executionee pose to give it a little extra flavor.

The picture is actually somewhat apropos because I’ve always believed that Bluetooth will be the death of me (and incidentally, one of the less flattering phonetic translations for chumby in Chinese literally means “execution by gun through the back of the head”. We didn’t use that one.). I’ve been through one frustrating startup designing Bluetooth/802.11b coexistence solutions and now I have this nasty allergic reaction to all things Bluetooth. I have an eye-rolling rant about how there is an eight-inch thick spec and million-transistor radio solutions whose primary application — point to point two-way wireless audio — was solved back in the 60’s with the three-transistor walkie-talkie (OK fine it’s just simplex but you get the idea). With a few thousand very nice CMOS transistors today you could build an extremely low power, low cost single-chip solution that would be so low power it would run for months and so cheap it would be disposable. Talk about a business–disposable fashion headsets that “just worked”–no association headaches, robust performance, etc. Anyways, I could go on for a while about my frustrations with this IrDA of the 00’s but I’ll save you the rant (unless you really want to hear it…)

I was at Bluehat giving a presentation with Felix Domke on various hardware hacking exploits, including silicon hacks, dbox-2, Gamecube, and of course, the Xbox360 (Felix is a genius and a gentleman). Below is a photo of Dinart Morais (whose initials ironically are “drm”), the designer of the Xbox360 security, and Michael Steil, Felix Domke, and me.

It was quite an honor to meet the man who designed such an excellent security system. We had a lot of questions for him, and he was very friendly. I guess since we have given our talk now, there is no more secret about it, some of the folks in the picture above were part of the team that published the February 2007 Xbox360 Hypervisor Priviledge Escalation Vulnerability. Fortunately, Microsoft was very receptive to working with us to fix the vulnerability before it was published and in the end it was a constructive exercise for all parties involved.

omg wtf I’m at Microsoft talking about Xbox hacking??!?!?

Please see Important Clarifications as well. Felix Domke (tmbinc) is the genius behind the Xbox360 hack. Please credit him properly!

Name that Ware April 2007

May 5th, 2007

The Ware for April 2007 is shown below. Click on the image for a much larger version.

My apologies for the lateness of this Ware. I’m in in Shenzhen again, bringing up the production line for Chumbys. The fact that this post is so late is an indication that I don’t have a lot of time out here to shop for wares and post them–but I finally got a chance to go to Luo Hu this weekend and find something that I thought was just entertaining to take apart.

Bonus points to anyone who can correctly guess how much I paid for this Ware (and even more points to someone who can tell me what I should have paid for this Ware based on a BOM analysis–you have to haggle for everything in Luo Hu).

I have a lot of stories from out here, but unfortunately most of them I can’t tell until the Chumby hardware is launched (which is imminent). I’m definitely learning more about this country on my extended stay out here, and when people say they have scars to show for bringing up a product in China, trust that they mean it. It’s been no cakewalk, not to mention I miss my friends and my home terribly, but I’ve been trying to make the best of it out here. I’ll share a few quips and anecdotes in the next post of things that I probably can talk about.