Schneier on Security: Security Risks of Embedded Systems

January 9, 2014

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Security expert Bruce Schneier wrote an essay on the present dangers of routers and small devices connected to the Internet: Schneier on Security: Security Risks of Embedded Systems. It’s supposed to be a wake-up call for the companies selling integrated chips and embedded systems: they need to design their product better, increasing inherent security, ensuring […]

Posted in: Security

Analyzing C source files dependencies in a program

November 24, 2013

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This post shows an approach to draw graphs representing the dependency of C source files and modules throughout a complete program. The implementation of this method uses the functionalities of GNU ld to create a cross reference table, then NetworkX to create a graph and Graphviz to visualize it. The approach is applied to a simple example and a real embedded application (U-Boot).

Posted in: Software

Debian Nvidia driver issue with legacy card, solved.

November 4, 2013

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On my Debian testing (jessie) computer, I usually perform a weekly “aptitude safe-upgrade“. This desktop has an old Nvidia GeForce 7300 GS card, and I’m using the “nvidia-kernel-dkms” package to provide proprietary drivers. On the last upgrade, Debian decided to install new packages with “nvidia-legacy-304xx” in their name. Other than that, a message appeared during […]

Posted in: Software

TED talk on everyday cybercrime

September 17, 2013

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The following talk by James Lyne is an interesting wake-up call. It’s a video that technology enthusiasts could share with anyone even if they’re not familiar with computer science. James executes, in real time, two practical examples of hacking, and also shows what data and statistics can be collected by scanning a room full of […]

Posted in: Security

Debugging the STM32-P152 board with GDB

September 15, 2013

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Olimex STM32-P152

This post shows how to debug a program running on the Olimex STM32-P152. The setup consists of free software such as GCC, GDB and OpenOCD, and FTDI USB cables.

Posted in: Embedded

Bruce Schneier on government surveillance

September 8, 2013

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The security expert Bruce Schneier wrote some useful essays on the current situation of Edward Snowden exposing the US surveillance programs, especially the documents where the US and UK intelligence agencies allegedly cracked the protection measures of common users for data collection and analysis. In “Conspiracy Theories and the NSA“, he argues that the feeling […]

Posted in: Security

Features of the new Arduino YÚN

September 2, 2013

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Arduino YÚN is a new product in the Arduino family. It’s a board with the same form factor as the typical Arduino, but contains an application processor running Linux, and modern flexible connectivities such as Ethernet, WiFi and USB. Here’s an introductory video from the creators: The Arduino YÚN features are described in a blog post in the official […]

Posted in: Hardware
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