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Windows 7: Quantum Computing Chip Built

22 Sep 2010   #11
johnwillyums

Windows 7 Home Premium 64 bit
 
 

That's an extremely good point Jimbo and a very worrying prospect.


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22 Sep 2010   #12
jimbo45

Linux CENTOS 7 / various Windows OS'es and servers
 
 

Hi there
for those more interested in the One Time Pad start with this reference and continue from there.
http://en.wikipedia.org/wiki/One-time_pad

Current cryptography WILL be rendered TOTALLY OBSOLETE by quantum computers.

A reasonable practical Quantum Computer is still probably YEARS and YEARS away --but since the physics have been proved to be valid hardwarte developments might come a lot quicker than we would normally anticipate.

Cheers
jimbo
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22 Sep 2010   #13
Win7User512

Windows 7 x64 / Same
 
 

Quote   Quote: Originally Posted by jimbo45 View Post
Hi there
for those more interested in the One Time Pad start with this reference and continue from there.
One-time pad - Wikipedia, the free encyclopedia

Current cryptography WILL be rendered TOTALLY OBSOLETE by quantum computers.

A reasonable practical Quantum Computer is still probably YEARS and YEARS away --but since the physics have been proved to be valid hardwarte developments might come a lot quicker than we would normally anticipate.

Cheers
jimbo
Yeah, seems One Time Pad would be rendered useless too...and at the moment it is perfectly secure.
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01 Oct 2010   #14
Everlong

 

Quote   Quote: Originally Posted by jimbo45 View Post
Hi there
If a PRACTICAL Quantum computer could ever get built it would pose an ABSOLUTE nightmare for security.

All existing security systems would be obsoleted overnight.

Since the essential property of a Quantum computer is that ALL STATES ARE SIMULTANEOUSLY POSSIBLE it implies that even a brute force password crack of say a 10 TRILLION byte long key would be done in microseconds (remember all possible combinations are done in a SINGLE computation with a Quantum computer.

It might appear that the hardware could be developed LONG before the implications on security were realized -- even the Militiary wouldn't be able to protect their stuff from prying eyes no matter how good their encryption algorithms were.

We'd be going back to a one time pad again -- the only KNOWN provable uncrackable system -- Quantum computing or not.

So a HUGE leap in hardware forcing us to revert back to Dinosaur Technology for our encryption processes.

Banks and customers BEWARE YOU HAVE BEEN WARNED.

Cheers
jimbo
Well research has been happening for a while now to see if uncrackable systems (mainly Swiss banks funding it for computer transactions) can be made using quantum nonlocality with photons, and if it does work, then I don't think there will be anything to worry about.
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01 Oct 2010   #15
jimbo45

Linux CENTOS 7 / various Windows OS'es and servers
 
 

Hi there
Unlike other "conventional" or classical cracking algorithms which require ooodles and ooodles of compute power and time due to the number of computations involved QUANTUM computers can do the entire process in ONE computation since the whole essence of a Quantum computer isn't like a BIT which can be EITHER 0 or 1 a "Qubit" can be BOTH at THE SAME TIME.

This is where "Uncrackable" cryptology will break down no matter how good or bad the Swiss Bankers are.

The Laws of Quantum Physics in its own domain is just as regid as Newton's Laws in our normal domain. So if Quantum computers DO get built any and everything that relies on current security techniques will be OBSOLETED at a stroke.

Cheers
jimbo
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01 Oct 2010   #16
madtownidiot

 

Generally... cutting edge technology exists for about average of 12 years before the general public becomes aware of it.
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01 Oct 2010   #17
Everlong

 

Quote   Quote: Originally Posted by jimbo45 View Post
Hi there
Unlike other "conventional" or classical cracking algorithms which require ooodles and ooodles of compute power and time due to the number of computations involved QUANTUM computers can do the entire process in ONE computation since the whole essence of a Quantum computer isn't like a BIT which can be EITHER 0 or 1 a "Qubit" can be BOTH at THE SAME TIME.

This is where "Uncrackable" cryptology will break down no matter how good or bad the Swiss Bankers are.

The Laws of Quantum Physics in its own domain is just as regid as Newton's Laws in our normal domain. So if Quantum computers DO get built any and everything that relies on current security techniques will be OBSOLETED at a stroke.

Cheers
jimbo
But when you're going to be using a quantum method, i.e. nonlocality, to put the system in, it won't break down as easily as any ordinary system.
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01 Oct 2010   #18
HQuest

Windows 7 Ultimate x64 SP1 | OSX Lion 10.7 x64
 
 

Hmmm.

Security against Quantum attacks will be... Traffic Shaping! If you can't speed you up, slow it down!
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