Ford Invites Open-Source Community to Tinker Away — One example: Nelson has re-tasked the motor from a Microsoft Xbox 360 game controller to create an OpenXC shift knob that vibrates to signal gear shifts in a standard-transmission Mustang. The 3D-printed prototype shift knob uses Ford’s OpenXC research platform to link devices to the car via Bluetooth, and shares vehicle data from the on-board diagnostics port. Nelson has tested his prototype in a Ford Mustang Shelby GT500 that vibrates at the optimal time to shift.
Cost-Efficient Continuous Integration at Mozilla — CI on a big project can imply hundreds if not thousands of VMs on Amazon spinning up to handle compiles and tests. This blog post talks about Mozilla’s efforts to reduce its CI-induced spend without reducing the effectiveness of its CI practices.
RSA Key Extraction via Low-Bandwidth Acoustic Cryptanalysis (PDF) — research uses audio from CPU to break GnuPG’s implementation of RSA. The attack can extract full 4096-bit RSA decryption keys from laptop computers (of various models), within an hour, using the sound generated by the computer during the decryption of some chosen ciphertexts. We experimentally demonstrate that such attacks can be carried out, using either a plain mobile phone placed next to the computer, or a more sensitive microphone placed 4 meters away.
Bitcoin, Magic Thinking, and Political Ideology (Alex Payne) — In other words: Bitcoin represents more of the same short-sighted hypercapitalism that got us into this mess, minus the accountability. No wonder that many of the same culprits are diving eagerly into the mining pool.
Why I Want Bitcoin to Die in a Fire (Charlie Stross) — Like all currency systems, Bitcoin comes with an implicit political agenda attached. Decisions we take about how to manage money, taxation, and the economy have consequences: by its consequences you may judge a finance system. Our current global system is pretty crap, but I submit that Bitcoin is worst. With a list of reasons why Bitcoin is bad, like Stolen electricity will drive out honest mining. (So the greatest benefits accrue to the most ruthless criminals.)
iSeeYou: Disabling the MacBook Webcam Indicator LED — your computer is made up of many computers, each of which can be a threat. This enables video to be captured without any visual indication to the user and can be accomplished entirely in user space by an unprivileged (non-root) application. The same technique that allows us to disable the LED, namely reprogramming the firmware that runs on the iSight, enables a virtual machine escape whereby malware running inside a virtual machine reprograms the camera to act as a USB Human Interface Device (HID) keyboard which executes code in the host operating system. We build two proofs-of-concept: (1) an OS X application, iSeeYou, which demonstrates capturing video with the LED disabled; and (2) a virtual machine escape that launches Terminal.app and runs shell commands. (via Washington Post)
Introduction to Behaviour Trees — DAGs with codey nodes. Behavior trees replace the often intangible growing mess of state transitions of finite state machines (FSMs) with a more restrictive but also more structured traversal defining approach.
P vs NP Cheat Sheet — the space and time Big-O complexities of common algorithms used in Computer Science.
How Google’s Defragging Android (Ars Technica) — Android’s becoming a pudgy microkernel for the Google Play Services layer that’s in userland, closed source, and a way to bypass carriers’ lag for upgrades.
Booting a Self-Signed Linux Kernel (Greg Kroah-Hartman) — procedures for how to boot a self-signed Linux kernel on a platform so that you do not have to rely on any external signing authority.
Paperscape — A map of scientific papers from the arXiv.
Trinket — Adafruit’s latest microcontroller board. Small but perfectly formed.
The STEM Crisis is a Myth (IEEE Spectrum) — Every year U.S. schools grant more STEM degrees than there are available jobs. When you factor in H-1B visa holders, existing STEM degree holders, and the like, it’s hard to make a case that there’s a STEM labor shortage.
MegaPWN (GitHub) — Your MEGA master key is supposed to be a secret, but MEGA or anyone else with access to your computer can easily find it without you noticing. Browser crypto is only as secure as the browser and the code it runs.
When Smart Homes Get Hacked (Forbes) — Insteon’s flaw was worse in that it allowed access to any one via the Internet. The researchers could see the exposed systems online but weren’t comfortable poking around further. I was — but I was definitely nervous about it and made sure I had Insteon users’ permission before flickering their lights.
bletchley (Google Code) — Bletchley is currently in the early stages of development and consists of tools which provide: Automated token encoding detection (36 encoding variants); Passive ciphertext block length and repetition analysis; Script generator for efficient automation of HTTP requests; A flexible, multithreaded padding oracle attack library with CBC-R support.
Hackers of the Renaissance — Four centuries ago, information was as tightly guarded by intellectuals and their wealthy patrons as it is today. But a few episodes around 1600 confirm that the Hacker Ethic and its attendant emphasis on open-source information and a “hands-on imperative” was around long before computers hit the scene. (via BoingBoing)
Maker Camp 2013: A Look Back (YouTube) — This summer, over 1 million campers made 30 cool projects, took 6 epic field trips, and met a bunch of awesome makers.
huxley (Github) — Watches you browse, takes screenshots, tells you when they change. Huxley is a test-like system for catching visual regressions in Web applications. (via Alex Dong)
Toxic Behaviour — only 5% of toxic behavior comes from toxic people; 77% of it comes from people who are usually good.
More Encryption Is Not The Solution (Poul-Henning Kamp) — To an intelligence agency, a well-thought-out weakness can easily be worth a cover identity and five years of salary to a top-notch programmer. Anybody who puts in five good years on an open source project can get away with inserting a patch that “on further inspection might not be optimal.”
On Location With Foursquare (Anil Dash) — Foursquare switched from primarily being concerned with the game-based rewards around engagement and the recording of people’s whereabouts to a broader mission that builds on that base to be about location as a core capability of the Internet.
The Internet of Things That Do What You Tell Them: Cory Doctorow passionately explains how computers are already entwined in our lives, which means laws that support lock-in are much more than inconveniences.