[dba-SQLServer] Quantum Computing: Has Its Dawn Finally Arrived?

 >Its potential is virtually unlimited...well limited to who can program it and given the current 
description of the product that will be a very finite group indeed.

It will be a very finite group indeed... every high school script kiddie.

;)

John W. Colby
Colby Consulting

Reality is what refuses to go away
when you do not believe in it

On 8/23/2012 12:09 PM, Jim Lawrence wrote:
>>From what I could read (no subscription) it is a very exciting subject.
>
> I suspect within five to ten years a design of same will be on the market
> and at one point its price will match any today's machines. Its potential is
> virtually unlimited...well limited to who can program it and given the
> current description of the product that will be a very finite group indeed.
>
> Maybe just you and me Arthur. ;-)
>
> Jim
>
> -----Original Message-----
> From: dba-sqlserver-bounces at databaseadvisors.com
> [mailto:dba-sqlserver-bounces at databaseadvisors.com] On Behalf Of Arthur
> Fuller
> Sent: Thursday, August 23, 2012 5:00 AM
> To: Discussion concerning MS SQL Server
> Subject: [dba-SQLServer] Quantum Computing: Has Its Dawn Finally Arrived?
>
> This snippet from iProgrammer:
>
> A Quantum Computer <http://www.i-programmer.info/news/112/4679.html#> Finds
> FactorsWritten by Mike James   Tuesday, 21 August 2012 10:00
>
> The Shor quantum factoring algorithm has been run for the first time on a
> solid state device and it successfully factored a composite number. Is this
> the start of the quantum computing revolution?
>
> Quantum computing is promised to provide many amazing advantages, but the
> one that is uppermost in the collective consciousness is its ability to
> factor numbers. The reason for this concern is that the Public Key
> Infrastructure (PKI) depends on the factoring of large numbers (600 digits
> or more) being a difficult task for a standard algorithm. In simple terms,
> public cryptography depends on the asymmetry between multiplying two primes
> together - easy - and factoring the number that results - difficult.
>
> A quantum computer, on the other hand, promises to factor a number of any
> size in one operation and,  if one can be built, the future of the PKI
> looks bleak and we would have to find encryption methods that were safe
> against a quantum attack.
>
> The summary of this can be found here:
> http://www.i-programmer.info/news/112/4679.html
>
> The original article published in Nature Physics can be found here:
> http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys2385.html
> (subscription
> required).
>