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Topic: This is REALLY BAD news for Bitcoin (Read 3983 times)

legendary
Activity: 1596
Merit: 1061
Smile
January 03, 2014, 09:11:07 PM
#34
If quantum computing works, we will have a lot more problems then just fixing bitcoin. Cracking bitcoin means cracking everything. :-/

+1

end of story

crack bitcoin you can crack banks
legendary
Activity: 2674
Merit: 3000
Terminated.
January 03, 2014, 09:06:43 PM
#33
Hello idiot OP.
legendary
Activity: 1400
Merit: 1013
January 03, 2014, 08:33:02 PM
#32
You were generous to give him a 4. 
I've seen a lot worse before.
member
Activity: 84
Merit: 10
January 03, 2014, 08:00:28 PM
#31
If they can break current encryption, then BTC is the least of our worries.
They'll be able to break into banks, emails, virtually any online security out there.

Also, if quantum computers are available, people could probably mine with it and have the difficulty raise 100 fold.
member
Activity: 98
Merit: 10
January 03, 2014, 07:27:03 PM
#30
LMFAO this is not even bad news for bitcoin. What a bogus article by a bogus newssource, seriously this is a mega troll.
This thread is a mega troll, dont belive anything you hear and only half of what you see.
omg nsa can crack bitcoin? How is this even bad news for bitcoin i dont understand what are you trying to imply ,
you jus put a link and dont explain ur thaughts
legendary
Activity: 1400
Merit: 1013
January 03, 2014, 06:23:31 PM
#29
Quantum computers are hyped about for decades, yet no substantial proof of their plausibility has been demonstrated.
Are you suggesting a machine that's capable of factoring 21 into 3 and 7 at about 50% of the time isn't anything to get excited about yet?
sr. member
Activity: 406
Merit: 251
http://altoidnerd.com
January 03, 2014, 06:21:34 PM
#28
If I invented a quantum computer, I wouldn't use it to break bitcoin.  I'd use it to MINE primecoin dude.  I'd make bones, then destroy my work.
member
Activity: 60
Merit: 10
January 03, 2014, 06:14:56 PM
#27
Quantum computers are hyped about for decades, yet no substantial proof of their plausibility has been demonstrated.
I wouldn't worry about the NSA succeeding in building one.
legendary
Activity: 2632
Merit: 1023
January 03, 2014, 03:25:59 PM
#26
this thread keeps coming back needs. Subject to be stick-ied in tech board
sr. member
Activity: 244
Merit: 250
January 03, 2014, 03:24:31 PM
#25
member
Activity: 60
Merit: 10
January 03, 2014, 02:58:43 PM
#24
If the do develop a quantum computer, it will be able to play some badass game.
Whatever happens it is win win.
hero member
Activity: 658
Merit: 500
Small Red and Bad
January 03, 2014, 02:44:13 PM
#23
Old news, this was discussed a month ago and still someone reposts.
mjc
hero member
Activity: 588
Merit: 500
Available on Kindle
January 03, 2014, 01:09:45 PM
#22


Wow the NSA cares that much about Bitcoin, and not the defense of the Nation!??
legendary
Activity: 1204
Merit: 1002
RUM AND CARROTS: A PIRATE LIFE FOR ME
January 03, 2014, 11:12:02 AM
#21
If quantum computing works, we will have a lot more problems then just fixing bitcoin. Cracking bitcoin means cracking everything. :-/
sr. member
Activity: 336
Merit: 250
January 03, 2014, 10:29:04 AM
#20
Just going by the article itself and quoting:

“I don’t think we’re likely to have the type of quantum computer the NSA wants within at least five years, in the absence of a significant breakthrough maybe much longer,” Lloyd told The Washington Post in a recent interview.

That's good enough for me.
legendary
Activity: 1106
Merit: 1001
January 03, 2014, 09:42:06 AM
#19
do you really think if quantum computer where build
and cryptografy crash, Bitcoin is your problem ?

When (if) quantum computing happens , ALL RSA will be opened....
so 95% of secure internet  protocols is opened....
and bitcoin will be the least of the problems Smiley

This. If someone manages to come up with a quantum computer that can break current crypto, we have much bigger fish to fry.

That being said, it seems a true quantum computer is decades away, if it's ever going to be built at all. And while the comparison to things like the speed of sound and manned flight is cute, there really are some things out there that haven't been achieved (faster than light speed travel, for instance, or, on a more quantum level, an accurate determination of the position and velocity of a particle), because they are innately impossible.
sr. member
Activity: 1008
Merit: 250
January 03, 2014, 09:18:58 AM
#18
I was reading somewhere about if we were to change encryption methods (maybe to sha512) it would make the current asic miners obsolete and require a whole new asic to mine. Please correct.
legendary
Activity: 3276
Merit: 2898
January 03, 2014, 09:15:03 AM
#17
do you really think if quantum computer where build
and cryptografy crash, Bitcoin is your problem ?

When (if) quantum computing happens , ALL RSA will be opened....
so 95% of secure internet  protocols is opened....
and bitcoin will be the least of the problems Smiley
hero member
Activity: 770
Merit: 500
January 03, 2014, 07:48:58 AM
#16
op is the biggest troll on this site
hero member
Activity: 492
Merit: 503
January 03, 2014, 07:48:46 AM
#15
Maybe this is a stupid question. But if some day the encryption bitcoin uses was cracked ,  couldn't the devlopers just switch to a different encryption ?

Or as years go on even if the current standards aren't cracked , would it be possible to switch to newer standards to always stay "ahead of the game" so to speak?

Sorry if it's a silly question, I don't know much about this area.

No, it's not a silly question, and broadly speaking the answer is YES, the standards can be changed to stay ahead of the game. I believe it would require a so-called 'hard-fork' which is bitcoin-speak for 'we'd better damn well have most people on board with this or it'll get ugly', but it's pretty clear everyone WOULD be okay with it.

But as several people have explained before, even a fully working quantum computer wouldn't pose an immediate threat to SHA256. Long before it did, we could simply move to SHA512. Basically, 2^256 is such a huuuuuuuuuuuuuuuuuuuuge number, that even its square root is still huuuuuuuuge enough.

The trolling here is not of course in the Washington Post, but in the OP's interpretation of their article. In fact even the attempt at misdirecting the blame is clumsy. OP, you're a really third-rate troll.
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