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[SD] Fingerprint Makes Computer Chips Counterfeit-Proof.

post #1 of 7
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http://www.sciencedaily.com/releases...0208091719.htm

Quote:
At embedded world, researchers from the Fraunhofer Institute for Secure Information Technology SIT will be demonstrating how electronic components or chips can be made counterfeit-proof using physical unclonable functions (PUFs). "Every component has a kind of individual fingerprint since small differences inevitably arise between components during production," explains Dominik Merli, a scientist at Fraunhofer SIT in Garching near Munich. Printed circuits, for instance, end up with minimal variations in thickness or length during the manufacturing process. While these variations do not affect functionality, they can be used to generate a unique code.
Fantastic stuff!
Let's just hope this prevents stuff like THIS from happening again
post #2 of 7
Fingerprinting is only half the battle though..... Verification needs to be easy as well. A counterfeit does not have to match the fingerprint exactly but close enough.
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post #3 of 7
Quote:
Originally Posted by frickfrock99 View Post
Let's just hope this prevents stuff like THIS from happening again
That was pretty insane.

So, they are using the physical properties of the chip as a key to generate unique information to identify it?

Very clever, but I wonder what properties will be selected.

What if you push a little hard mounting the CPU and distort the properties used to generate the key?
    
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post #4 of 7
Anything can be counterfeited/cracked/hacked/exploited, only a matter of time before it happens.
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post #5 of 7
Quote:
Originally Posted by KusH View Post
Anything can be counterfeited/cracked/hacked/exploited, only a matter of time before it happens.
I think it is about mitigating it on a large scale, not preventing it entirely.

I think companies would be OK reducing their loss by 60%.
    
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post #6 of 7
Quote:
Originally Posted by _02 View Post
That was pretty insane.

So, they are using the physical properties of the chip as a key to generate unique information to identify it?

Very clever, but I wonder what properties will be selected.

What if you push a little hard mounting the CPU and distort the properties used to generate the key?
The physical properties are at the microscope level. If you distort them... they you probably already broke the CPU.
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post #7 of 7
Interesting. Wonder how it's measured--I wonder if it's simply measuring the resistance, capacitance, etc., of a specific circuit. Surely an input-output interrupt could easily be designed to defeat this? I wonder how low-level the read is that verifies something as authentic.
    
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