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Submission + - a cluster (small beowulf) of arduinos! (vanheusden.com)

Submitted by flok
flok writes: We all love the arduino with its 2KB of RAM and not much more than 16MHz of speed. Normally we use only one in a project but a thought came to me: what if I take a couple of them and put those in a cluster? I started soldering and the result is 4 Arduinos connected to each other via an I2C bus and all directed by a Raspberry Pi. Together these 4 Arduinos calculate the Mandelbrot fractal, directed by the Raspberry Pi (it divides/schedules the work between the Arduinos). On my website you'll find a demonstration, schematics and all source code. In theory a cluster of at least 120 Arduinos could be setup. Electrical power is the limit!

Submission + - Ad Exchange-Publisher leaks cookies, evades blocking. (inrialpes.fr) 1

Submitted by fierman
fierman writes: Ad Exchange-Publisher creative settings results in 3rd-party cookie blocking evasion and leaks.

The OpenX Ad Exchange which provides Real-Time Bidding services is cooperating closely with its publishers, as a recent observation shows. The way the domain name system is being used, browser blocking of 3rd-party cookies seems to be bypassed as a side effect. Unrelated cookies such as Google Analytics, are being sent to 3rd-party sites, like OpenX, due to broad cookie scoping and the setting of DNS aliasing, as the full report states.

Comment Re:Only $0.0005? Great! (Score 1) 75

by core_tripper (#45656703) Attached to: High-Frequency Trading For Your Private Data

Firefox and Chrome extension to see how much you are worth are available @ https://team.inria.fr/privatics/yourvalue/
FF plugin directly from Mozilla: https://addons.mozilla.org/en-US/firefox/addon/rtbwatcher/

statistics so far from http://yourvalue.inrialpes.fr/
Average price of users $0.001200
Price of the cheapest user $0.000076
Price of the most expensive user $0.008000

Submission + - Real-Time Bidding: selling private data in 100 ms for $0.0005 (inrialpes.fr) 1

Submitted by fierman
fierman writes: In a work to be presented at the Network and Distributed System Security Symposium (ISOC NDSS'14), INRIA researchers show the privacy risks of Real-Time Bidding, High-Frequency Trading for selling advertisement spaces. Combining Real-Time Bidding and Cookie Matching advertisers can significantly improve their tracking and profiling capabilities and both technologies are already prevalent on the Web. The research discusses the value of users' private data (Web Browsing History) retrieved directly from the advertisers, leveraging of an exposed information leak in RTB systems. pay about $0.0005 for displaying ads to the user, at the same time acquiring information about them. Evidence of price variation with users' profiles, pysical location, time of day and content of visited sites is also shown. Prices for ads are much higher for users located in US, than in Europe. The research highlights that the technology is not transparent in that the lists and numbers of buyers of users' data is not known. However, a list of Doubleclick's Cookie Matching partners was disclosed.
Users can also experience their real-time evaluations using a released transparency enhancing
tool.

Comment av performance measured. (Score 1) 294

by core_tripper (#44298221) Attached to: Ask Slashdot: Light-Footprint Antivirus For Windows XP?

These tests evaluate the impact of anti-virus software on system performance, as programs running in background – such as real time protection antivirus software -
  AV-comparatives performance chart
For more in depth see:
  Performance-Test (AV) May 2013 PDF

NOD32 is very fast, its core is written in assembly. source from NOD32, see performance

Comment Ex-Employee AMD quote (Score 2) 497

by core_tripper (#39092101) Attached to: AMD: What Went Wrong?
A quote from an engineer who used to work for AMD

What did happen is that management decided there SHOULD BE such cross-engineering ,which meant we had to stop hand-crafting our CPU designs and switch to an SoC design style. This results in giving up a lot of performance, chip area, and efficiency. The reason DEC Alphas were always much faster than anything else is they designed each transistor by hand. Intel and AMD had always done so at least for the critical parts of the chip. That changed before I left - they started to rely on synthesis tools, automatic place and route tools, etc. I had been in charge of our design flow in the years before I left, and I had tested these tools by asking the companies who sold them to design blocks (adders, multipliers, etc.) using their tools. I let them take as long as they wanted. They always came back to me with designs that were 20% bigger, and 20% slower than our hand-crafted designs, and which suffered from electromigration and other problems.
That is now how AMD designs chips. I'm sure it will turn out well for them [/sarcasm]

source: http://forums.macrumors.com/showpost.php?p=9746191&postcount=619

more:
http://www.insideris.com/amd-spreads-propaganda-ex-employee-speaks-out/

Submission + - stealing for science (utwente.nl)

Submitted by core_tripper
core_tripper writes: Students at the University of Twente have stolen thirty laptops from various members of the university’s staff. They were not prosecuted for this, so they could just get on with their studies. Indeed, these students even received ECTS credits for these thefts. UT researcher Trajce Dimkov asked the students to steal the machines as part of a scientific experiment. Stealing these laptops turned out to be a pretty simple matter.

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