Thanks for the Support

February 11th, 2012

Thanks to everyone who signed my petition to the copyright office in support of the EFF’s DMCA exemption requests. I’m overwhelmed that over 25,000 signatures were collected in just a fortnight.

As a supplement to the public petition, I submitted a second letter with personal comments to the copyright office as well. It’s all public record, and here’s a copy of it in case you’re interested in what I had to say:

Dear Ms. Pallante,

I am writing in support of proposed exemption classes 3 (consoles), 4 (personal computing devices) and 5 (smartphones and tablets). I am separately filing a petition with about 25,000 signatures of like-minded consumers who also support these exemption requests.

I’ve been on many sides of the DMCA equation – as a developer, a researcher and a user. In the past, I conducted research on the Microsoft Xbox, which led ultimately to a jailbreak for the platform. This happened while I was earning my PhD in electrical engineering at MIT. In addition, as a hobbyist I have tinkered with many platforms, including the Sega Dreamcast, the Nintendo Gamecube, and various printers. Today, my principal business is the development and sales of end-user hardware devices, many of which incorporate cryptographic elements to control access and to maintain privacy.

I have seen a contraction of user’s rights over my two decades in the industry, and a corresponding decline in small business innovation. I would like to ensure the law recognizes and upholds users’ rights with respect to privately owned hardware. These rights enable users to innovate and improve their hardware. I refer to game consoles, tablets, smartphones, and other computing devices in the same breath because as a hardware designer, all of these systems look basically identical on the inside.

The exemptions I am supporting help preserve a traditional notion of ownership. Before the DMCA, there was a clean, bright line at the checkout counter of a store. Once you bought it, it was yours – if you wanted to use it as a doorstop, you could; if you wanted to modify it to do something more useful, that was also fine. If there was a bug or a security problem with the device, you were free to patch it. Without these exemptions, the owner’s right to modify, repair, improve and develop for devices that incorporate now-ubiquitous cryptographic technology is hampered by the potential legal ramifications of jailbreaking.

Repairing your broken game console is a specific example of something that’s risky to do on your own because of the DMCA. As units age, parts wear out and need replacing. For example, the Xbox has a hard drive; a hard drive will wear out after a few years, rendering the console inoperable. Thus, a user who has invested hundreds of dollars into a game library will eventually suffer its loss of use. Due to the Xbox’s security measures, replacing the hard drive requires jailbreaking the console. Without an exemption, users will ultimately be left with the choice of either abandoning their investment, or facing potential legal problems in the course of repairing or seeking the repair of their console.

Of course, for a limited period of time, one option is to buy a new or second-hand console; or if the platform supports it, purchase a next-gen console which incorporates emulation of previous-generation games. However, the popularity of retro-gaming today demonstrates that certain game titles have a timeless appeal, and can be playable for generations. Nintendo’s Mario franchise is deeply embedded in game culture partly because 80’s vintage consoles can be repaired and played again by both new and old gamers. However, the DMCA makes it risky to engage in basic console repairs that require jailbreaks, such as replacing a worn-out hard drive. In essence, retro-gaming ends where the DMCA begins.

The right to jailbreak is also critical for innovation. As a hardware developer and businessman, I know that the developers don’t always get it right. Locking down a platform turns the dialog between users and companies into a one-sided monologue; the DMCA creates legal uncertainty for users who want to look under the hood and develop an informed opinion about their technology. While the dialog between companies and users is not always harmonious, the result in the end is generally a better solution for the general public. Within 3 days of the A5 iPhone jailbreak, almost 1 million users downloaded the jailbreak. There are over 2 million users of the Nintendo Wii who have installed the home brew channel, enabling them to play independently developed video games. And there are at least hundreds of thousands of Xbox users who run the XBMC application, and millions who have downloaded the same app for their PCs.

XBMC originally stood for the “Xbox Media Center”. It was developed on jailbroken Xboxes in response to the limitations of the Microsoft-sanctioned media player application. Microsoft was slow in responding to user requests for an enhanced media playback experience; furthermore, Microsoft media products tended to favor their proprietary formats, limiting user choice. However, due to cryptographic access controls implemented in the hardware, users could not simply write their own media player application. Therefore, a jailbreak had to be developed – exposing the developers to potential legal liability. However, the passion of these developers is reflected in the quality of the software. Today, the XBMC application has migrated from consoles to PCs, runs on everything from Macs to PCs to set top boxes, and has even resulted in new startups, such as Boxee, based around the platform technology. Without a jailbreak, none of this would have come to pass.

There is an incredible reservoir of innovation that is being held back by the DMCA dam, and granting an exemption to consoles, smartphones, tablets, and other personal computing devices will unleash a powerful torrent of new ideas and improvements.

Please grant these exemptions to re-enable grass-roots innovation and to preserve the traditional notion of ownership.

Sincerely,

Andrew “bunnie” Huang, PhD

You Bought It, but Do You Own It?

January 26th, 2012

On February 10th, I’m sending a letter to the Library of Congress in support of granting exemptions to the DMCA for jailbreaking your own devices. If you believe that you should be able to run whatever programs you want on your own hardware, please sign my letter to show support; anyone from anywhere in the world can sign. You can also submit your own letter to the Library of Congress, if you feel so inclined or disagree with my opinions.

In 2002, I intercepted a key on the original Xbox that allowed me to encrypt and run my own software on the device. Even though that Xbox had a Pentium processor on the inside — the same CPU found in my desktop PC — without that key, I could only run the limited selection of software provided to me by Microsoft.

When I was informed about the DMCA, which became law in 1998, it was a bucket of cold water thrown at my face; I felt deeply disenfranchised. You see, I was a graduate student at MIT at the time, and up until that point the freedom to create, explore, and overcome barriers was encouraged, even celebrated. It was bewildering that running linux on this PC with the green X is illegal, yet running linux on this architecturally identical beige box next to it was legal. A chill descended upon the situation; MIT sent letters to me officially repudiating involvement in my activities, fearing the worst. Fortunately, brave souls at the MIT AI lab stood up for me in defiance of the campus counsel, and provided me with resources and the connections to the EFF to negotiate with Microsoft and see a positive ending to the whole situation.

I’m lucky. Not everyone has the encouragement, wisdom and strength of a team of MIT faculty and EFF counsel behind them. Without further exemptions to the DMCA enabling jailbreaking, freedom to innovate and tinker withers. Since then, many lawsuits have been filed under the DMCA, creating a tone of fear. Research projects are abandoned, business plans are scrapped; and the stalwart operators left with the will to research jailbreaks work in shadow, a constant fear of lawsuit haunting them for the mere practice of attempting to load their own software onto hardware that they legally own. Entrepreneurs and innovators should not be so burdened, especially at a time when we need their valuable contributions to bootstrap new businesses.

I believe if you buy hardware, you should own it; and ownership means nothing less of full rights to do with it as you wish. If you believe in this too, please sign my letter to the Library of Congress in support of extended exemptions to the DMCA, enabling jailbreaks for more platforms.

A special thanks to the EFF for preparing the website and helping me with the letter!

When in Doubt…

January 23rd, 2012

Name that Ware January 2012

January 23rd, 2012

The Ware for January 2012 is shown below. Click on the image for a much larger version.

Ok, let’s get the obvious bit out of the way with — it’s a speakerphone of some type, as evident from the gross construction. The question is what make and what model?

I wanted to highlight in this ware a couple of interesting construction points. A speakerphone needs to have excellent echo cancellation, otherwise you get feedback from the speaker to the mic. This speakerphone does a great job in the physical construction to create as much isolation as possible. First, the speaker is isolated from the rest of the body on an “island” of plastic. The housing itself uses a rubber gasket with an air-tight (hot-glue filled) through-hole providing a quality acoustic suspension speaker enclosure.

Then, the microphone is basically in a cradle of rubber. There’s a rubber gasket to isolate the microphone enclosure from the case, and then the microphone itself is suspended in yet another rubber holder. The hole for the microphone to the outside world is generously sized to eliminate the resonant filtering effects of going through a tube, and then the whole assembly is angled with respect to the table to mitigate reflections from the housing to the table.

Even though there is a substantial amount of DSP in the box doing echo-cancellation, there’s nothing like good and simple mechanical design principals to make a product even better.

Winner, Name that Ware December 2011

January 23rd, 2012

The Ware for December 2011 was a Nichia NDV4313, or a fake of it. The NDV4313 is a 120mW, 405nm laser diode. However, there is another part running around China that seems nearly identical in spec and construction to the NDV4313, but the cost is over two orders of magnitude cheaper. I thought this was an interesting differential in pricing, so I bought some samples to investigate.

When I looked at the ware under a microscope, I was struck by its magnificent construction. If you notice from the photo, the very top chip on the stack has a clear substrate. That’s a near-perfect crystal of sapphire, onto which a thin layer of Gallium Nitride is deposited. The sapphire crystal is cleaved and polished so that the ends form the mirrors for the laser cavity. The laser itself is bonded to the monitor photodiode, which I’m guessing is made out of silicon, and then that is mounted to a gold slug which serves as the ultimate heat sink. It’s quite a work of art.

I’m guessing that no Chinese manufacture is actually “faking” a process this intricate, so most likely these diodes came from a Nichia fab, but are either rejects, relabels, or excess quantities of a legitimate, high-volume product washed through the gray market onto the shores of my lab bench.

Picking a winner was difficult as usual. A lot of correct answers; plum33 was first (and also last month’s winner), but f4eru actually mentioned Nichia in his response. Exercising fully arbitrary judgement authority, I’ll say f4eru is the winner. Congrats, email me to claim your prize!