Skip to comments.
NSA seeks to build quantum computer that could crack most types of encryption
The Washington Post ^
| January 2, 2014
| Steve Rich
Posted on 01/02/2014 1:42:59 PM PST by Biggirl
click here to read article
Navigation: use the links below to view more comments.
first previous 1-20, 21-27 last
To: Biggirl
What this needs is the agreement of several hundred very high volume data users to create massive random data flows to overflow even a massively parallel system.
That is, in effect, the NSA is hoping to develop a very fast brute force system. But if it tries to decrypt garbage, it must go all the way to the nth calculation to show that it is garbage, and even then it is never sure that it is garbage.
Eventually, maximum effort to produce minimal results will render it cost ineffective.
They are experiencing a similar problem right now by trying to monitor all communications all the time everywhere. So much garbage that anything of value in it is lost.
21
posted on
01/02/2014 2:44:30 PM PST
by
yefragetuwrabrumuy
(There Is Still A Very Hot War On Terror, Just Not On The MSM. Rantburg.com)
To: Biggirl
The irony of building a quantum computer for decryption/factoring is that the complexity with building the computer is entangling the bits, keeping the bits entangled, then "reading" the bits.
Once that problem is figured out, the technology can be fairly readily adapted to build quantum encryption that can't be broken by a quantum computer.
So once the problem is solved, the solution creates a new greater problem.
22
posted on
01/02/2014 2:55:24 PM PST
by
Deek
Comment #23 Removed by Moderator
To: Biggirl
When do we get to see the guy from the old Apple commercial on the large screen?
I’ll bring the sledgehammer....
To: Biggirl
seeks to build = already built 5 years ago and the $$$$$$$$ is a laundering scheme.
25
posted on
01/02/2014 3:45:56 PM PST
by
bgill
To: MeganC
One-time cipher pads are still pretty safe so long as you just use them once.The problem is getting genuinely random numbers for the key. Computers produce only pseudorandom numbers, and even if the keys are genuinely random, keeping the "code book" secure is difficult.
To: JoeFromSidney
I've looked into using tables of economic and demographic data, and telephone directories, as sources of random numbers. They "sort of" solve the problem of distributing the keys. The numbers pass several tests of randomness, but if "they" figure out which table you're using, the game is up.
Navigation: use the links below to view more comments.
first previous 1-20, 21-27 last
Disclaimer:
Opinions posted on Free Republic are those of the individual
posters and do not necessarily represent the opinion of Free Republic or its
management. All materials posted herein are protected by copyright law and the
exemption for fair use of copyrighted works.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson