BitMonkey (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 04:46:40 PM |
|
How much of a threat is quantum computing at the moment.
All it would take is one entity to achieve significant quantum computing power (NSA in UTAH!?), and all of the sudden we have a real problem. Right?
Info and thoughts welcome
|
|
|
|
_mr_e
Legendary
Offline
Activity: 817
Merit: 1000
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 04:48:39 PM |
|
Oh we'll have a problem all right, but not just with Bitcoin. Encryption methods used by every bank will also be at risk at that point.
|
|
|
|
stevegee58
Legendary
Offline
Activity: 916
Merit: 1003
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 04:51:52 PM |
|
How much of a threat is quantum computing at the moment.
Strictly speaking, at the moment, quantum computing isn't a threat (or of use) to anyone since it's still nothing more than a science experiment.
|
You are in a maze of twisty little passages, all alike.
|
|
|
BitMonkey (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:08:30 PM |
|
So it wouldn't be far fetched to assume that there is some type of race towards quantum computing in the higher levels of security administrations. It would be like a universal key to everything.
|
|
|
|
Inaba
Legendary
Offline
Activity: 1260
Merit: 1000
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:23:16 PM |
|
Yes... Bitcoin would be the least of anyones worries if a general purpose, stable QC were to be made available. It would basically destroy the entire security industry in one grand stroke, and everything, everywhere would be insecure. Compared to that, Bitcoin wouldn't even be a blip on the radar.
|
If you're searching these lines for a point, you've probably missed it. There was never anything there in the first place.
|
|
|
BitMonkey (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:28:32 PM |
|
So yes it is an issue (a big one), but no it isnt time pressing as far as we know. Maybe a quantum encryption method will be created anyway, and we would just use that.
|
|
|
|
glub0x
Legendary
Offline
Activity: 892
Merit: 1013
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:30:41 PM |
|
Yes... Bitcoin would be the least of anyones worries if a general purpose, stable QC were to be made available. It would basically destroy the entire security industry in one grand stroke, and everything, everywhere would be insecure. Compared to that, Bitcoin wouldn't even be a blip on the radar.
If the bitcoin project has any ambition, this is really not a good answer.
|
The cost of mediation increases transaction costs, limiting the minimum practical transaction size and cutting off the possibility for small casual transactionsSatoshi Nakamoto : https://bitcoin.org/bitcoin.pdf
|
|
|
Inaba
Legendary
Offline
Activity: 1260
Merit: 1000
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:33:56 PM |
|
The point is, it's not a threat that needs attention at the moment. If it were, you can be other industries would already be scrambling to find solutions. As far as I know, right now, they've been able to make a QC do several bits of computing at a really slow rate for about 2 minutes max before the computer becomes unstable and collapses.
Your 8088 has nothing to worry about at the moment, let alone modern equipment.
|
If you're searching these lines for a point, you've probably missed it. There was never anything there in the first place.
|
|
|
boozer
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:34:17 PM |
|
On the flip side, isn't quantum cryptography being developed/in use? I think it has been developed and cracked already, but I believe the quantum cryptography fundamentals are solid, just the implementation that needs to be corrected (I am by no means knowledgeable about the subject, just trying to recall some things I read awhile back)
|
|
|
|
beekeeper
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:41:35 PM |
|
On the flip side, isn't quantum cryptography being developed/in use? I think it has been developed and cracked already, but I believe the quantum cryptography fundamentals are solid, just the implementation that needs to be corrected (I am by no means knowledgeable about the subject, just trying to recall some things I read awhile back)
"quantum cryptography" right now is only "quantum communications" and less "quantum computing". they use quantum effects like entanglement to safe transfer info from A to B.
|
|
|
|
Rygon
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:47:32 PM |
|
Quantum cromputing has an advantage against the current implementation of public-private key encryption standards, RSA I think. If those computers ever got close to being able to crack those encryptions, people would just start using keys with more bits or come up with a new public-private key methodology that wasn't as vulnerable. Bitcoin would update and move on. That's what I understand, at least.
|
|
|
|
bitcool
Legendary
Offline
Activity: 1441
Merit: 1000
Live and enjoy experiments
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:49:12 PM |
|
Yes. this kind of technological quantum leaps are always serious threats.
Imho.
|
|
|
|
beekeeper
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 05:55:36 PM |
|
Quantum cromputing has an advantage against the current implementation of public-private key encryption standards, RSA I think. If those computers ever got close to being able to crack those encryptions, people would just start using keys with more bits or come up with a new public-private key methodology that wasn't as vulnerable. Bitcoin would update and move on. That's what I understand, at least.
Hm, I dont think using bigger key will help. If anyone gets a quantum stable turing machine (and thats about a finite number of q computer elements, less than 100), it can be programmed to run any algorithm. It wont help to have a bigger key since it will be able to brute force any regular encryption algorithm in same amount of time.
|
|
|
|
kjj
Legendary
Offline
Activity: 1302
Merit: 1026
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 06:17:32 PM |
|
Hmm. The other hundred threads on this same topic all came to the conclusion that QC wasn't a problem for the next decade or more, and that we'd have plenty of time to adapt as technology improves.
I'm going to watch this thread, just in case it turns out differently from the others.
|
17Np17BSrpnHCZ2pgtiMNnhjnsWJ2TMqq8 I routinely ignore posters with paid advertising in their sigs. You should too.
|
|
|
Killerpotleaf
Sr. Member
![*](https://bitcointalk.org/Themes/custom1/images/star.gif) ![*](https://bitcointalk.org/Themes/custom1/images/star.gif) ![*](https://bitcointalk.org/Themes/custom1/images/star.gif)
Offline
Activity: 812
Merit: 250
A Blockchain Mobile Operator With Token Rewards
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 06:20:22 PM |
|
this question is kinda like the Y2K bug
"EVERYTHING WILL FALL APART!"
come on!
lol
|
|
|
|
stevegee58
Legendary
Offline
Activity: 916
Merit: 1003
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 06:24:30 PM |
|
Just as the stupidity of humanity never fails to amaze (viz pirate pyramid) so too for human ingenuity. Any technological advance can be countered given sufficient motivation.
|
You are in a maze of twisty little passages, all alike.
|
|
|
barbarousrelic
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 07:15:57 PM |
|
There are encryption schemes that are resistant to being broken by quantum computers. http://en.wikipedia.org/wiki/Unbalanced_Oil_and_Vinegar
|
Do not waste your time debating whether Bitcoin can work. It does work.
"Early adopters will profit" is not a sufficient condition to classify something as a pyramid or Ponzi scheme. If it was, Apple and Microsoft stock are Ponzi schemes.
There is no such thing as "market manipulation." There is only buying and selling.
|
|
|
mc_lovin
Legendary
Offline
Activity: 1190
Merit: 1000
www.bitcointrading.com
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 07:20:43 PM |
|
IMHO quantum computing is less of an issue to bitcoin than time travel.
|
|
|
|
Rygon
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 07:22:08 PM |
|
Yes. this kind of technological quantum leaps are always serious threats.
Imho.
Is the real danger from Scott Bakula going back in time to buy up all the BTC when it was <$1/BTC?? ![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
|
|
|
|
FreeMoney
Legendary
Offline
Activity: 1246
Merit: 1016
Strength in numbers
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 30, 2012, 10:13:08 PM |
|
IMHO quantum computing is less of an issue to bitcoin than time travel.
rofl, yes, everyone will crash into each other on Jan 3rd 2009.
|
Play Bitcoin Poker at sealswithclubs.eu. We're active and open to everyone.
|
|
|
|