Bitcoin hacking, How long would it take?

[bearex]

All of the things you are saying are true, yeah, but there is another way. You can hack your way into the person's PC and get their bitcoins, you can bruteforce their password and get a hold of their BTC.

But exposing the private key really is impossible for now.

[Newcoins2020]

This might be possible someday but for now we should be save. If this will be possible in a 100 years, it wouldn't matter much to me since I'll be dead by then.
For now it's just not possible for someone to accomplish this.

[Amph]

It will take 100 more years at least I think before anyone can hack btc.

I think we'll have sufficient quantum computing power in 10 years to crack it.  

this put us at risk since, in 10 years we are expecting(even satoshi) that bitcoin would be adopted on a world scale

but speaking about sha256 only, it will take much more, quantum can not do anything to it, maybe we can get rid of ecdsa in the future

[TastyChillySauce00]

It will take along time no matter what it will be nearly impossible to get it.

but with quantum computer,nothing impossible on the internet,even the most security thing on the internet must have a hole or bug

[stan.distortion]

Some perspective on it:

[flagpara]

It will take 100 more years at least I think before anyone can hack btc.

I think we'll have sufficient quantum computing power in 10 years to crack it. 

I have to say I strongly disagree. i studied a bit quantic computers and more and more scientists are saying that we can't go further. Quantum computing power may be just a dream for humans, there is a physic impossibility that we can't break.

[flagpara]

It will take along time no matter what it will be nearly impossible to get it.

but with quantum computer,nothing impossible on the internet,even the most security thing on the internet must have a hole or bug

Again you're right with quantum computer nothing is impossible.
But quantum computers are not invented yet, we're faaaaaaaaaaaaaar from being able to only store more than a few bytes of data so don't worry too much. In addition quantic computing has an exponential difficulty, it takes more and more time and effort to make each step, and scientists become more and more skeptical about it.

[Kprawn]

You can never know this because in th future the computers may be 1000 times faster, u never know what next is going to be invented. It will take 100 more years at least I think before anyone can hack btc.

Lets look at those numbers and see what happens. My GPU does up to 37 Million keys per second. Lets assume 50 million to have a round number. Lets further assume everyone on earth has such an GPU running and that checking the addresses for a balance takes no time.

So 10 billion (rounded up) people generate and check 50 billion keys per second (remember 1000 times faster) for 100 years.

A: 10*1000³ 50 * 1000³ * 60 * 60 * 24 * 365 * 100 = 1.5768*10³⁰

B: At the same time we have 2¹⁶⁰ or ~1.4615*10⁴⁸ possible addresses with 2⁹⁶ private keys each.

A/B = 1.0788 * 10^-18. So still a lower chance than winning a 6 of 49 lottery 3 times in a row.

Shorena have you calculated the impact, if more people adopt Bitcoin and more addresses are being used? I know the math are staggering and the chance is nearly impossible...

but I would like to know how the possibility increase as adoption grows and more addresses are being used. In theory the math should be in your favor, if more addresses are

being used? Personally I would much rather invest that hashing power to mine bitcoins, than trying to hash a private key.

[HostSurf]

I think it will take years for this to be possible. If it really was that easy, it would've been done by someone already.
I think it will take at least another 100 years for someone to achieve this. So it wouldn't matter to us, this generation of bitcoin users.

[flagpara]

You can never know this because in th future the computers may be 1000 times faster, u never know what next is going to be invented. It will take 100 more years at least I think before anyone can hack btc.

Lets look at those numbers and see what happens. My GPU does up to 37 Million keys per second. Lets assume 50 million to have a round number. Lets further assume everyone on earth has such an GPU running and that checking the addresses for a balance takes no time.

So 10 billion (rounded up) people generate and check 50 billion keys per second (remember 1000 times faster) for 100 years.

A: 10*1000³ 50 * 1000³ * 60 * 60 * 24 * 365 * 100 = 1.5768*10³⁰

B: At the same time we have 2¹⁶⁰ or ~1.4615*10⁴⁸ possible addresses with 2⁹⁶ private keys each.

A/B = 1.0788 * 10^-18. So still a lower chance than winning a 6 of 49 lottery 3 times in a row.

Shorena have you calculated the impact, if more people adopt Bitcoin and more addresses are being used? I know the math are staggering and the chance is nearly impossible...

but I would like to know how the possibility increase as adoption grows and more addresses are being used. In theory the math should be in your favor, if more addresses are

being used? Personally I would much rather invest that hashing power to mine bitcoins, than trying to hash a private key.

Easy to do so.
Imagine we're 10billion, we all have 10 adresses. It makes 10¹¹ adresses in total.
So A/B is still 1.0788*10^-7 , for 100 years of work... With all the absurd hypotheses previously made ^^

I'd say it is still rather safe!

[shorena]

You can never know this because in th future the computers may be 1000 times faster, u never know what next is going to be invented. It will take 100 more years at least I think before anyone can hack btc.

Lets look at those numbers and see what happens. My GPU does up to 37 Million keys per second. Lets assume 50 million to have a round number. Lets further assume everyone on earth has such an GPU running and that checking the addresses for a balance takes no time.

So 10 billion (rounded up) people generate and check 50 billion keys per second (remember 1000 times faster) for 100 years.

A: 10*1000³ 50 * 1000³ * 60 * 60 * 24 * 365 * 100 = 1.5768*10³⁰

B: At the same time we have 2¹⁶⁰ or ~1.4615*10⁴⁸ possible addresses with 2⁹⁶ private keys each.

A/B = 1.0788 * 10^-18. So still a lower chance than winning a 6 of 49 lottery 3 times in a row.

Shorena have you calculated the impact, if more people adopt Bitcoin and more addresses are being used? I know the math are staggering and the chance is nearly impossible...

but I would like to know how the possibility increase as adoption grows and more addresses are being used. In theory the math should be in your favor, if more addresses are

being used? Personally I would much rather invest that hashing power to mine bitcoins, than trying to hash a private key.

Well if assume a number of possible addresses that each has a single satoshi and 21 million btc, we have 2100000000000000 or 2.1*10¹⁵ possible addresses with 1 satoshi each. Again the simplistic approach is to multiple the above chance by the number of addresses. So we end up with a ~0.227% chance given the above scenario (100 years, every person uses insanly good computers) to find a single satoshi.

[flagpara]

Well if assume a number of possible addresses that each has a single satoshi and 21 million btc, we have 2100000000000000 or 2.1*10¹⁵ possible addresses with 1 satoshi each. Again the simplistic approach is to multiple the above chance by the number of addresses. So we end up with a ~0.227% chance given the above scenario (100 years, every person uses insanly good computers) to find a single satoshi.

Yeah it's another way it seems that hacking addresses is not for today xD

[Oscoda]

For now I like to believe that we're safe. If we do make computers that smart that they can hack this, it will still take at least around 20 - 25 years for this to be possible.
Until then I'm not really worried about this hacking.

[tn211]

They can't hack me I am a nobody no one knows me so yeah. Also if your pc is not secured or other things if you don't secure your stuff that good than no wonder you got hacked. But I think we are still oke. So I am not that worried for now.

[LuckyYOU]

I do think this will be possible but it will be quiet some time for this to happen. I think we're safe for now.
I'm not too worried about being hacked.

[Mickeyb]

You can never know this because in th future the computers may be 1000 times faster, u never know what next is going to be invented. It will take 100 more years at least I think before anyone can hack btc.

Lets look at those numbers and see what happens. My GPU does up to 37 Million keys per second. Lets assume 50 million to have a round number. Lets further assume everyone on earth has such an GPU running and that checking the addresses for a balance takes no time.

So 10 billion (rounded up) people generate and check 50 billion keys per second (remember 1000 times faster) for 100 years.

A: 10*1000³ 50 * 1000³ * 60 * 60 * 24 * 365 * 100 = 1.5768*10³⁰

B: At the same time we have 2¹⁶⁰ or ~1.4615*10⁴⁸ possible addresses with 2⁹⁶ private keys each.

A/B = 1.0788 * 10^-18. So still a lower chance than winning a 6 of 49 lottery 3 times in a row.

Good show, That put that to rest then .

Its a simplified view, someone with a better understanding of probability distributions might be willing to correct me, but I think the ballpark will be the same.

It is simplified but it's exactly what we need for ordinary people to understand it! Even all those calculations don't mean anything. Even to me it's maybe more important when you compare it to the lottery winning than doing all of the calculations and I am sure this is even more effective to the ordinary people out there!

[Tey]

Some perspective on it:

I sent you a message regarding the photo..

Cheers

[BruceLee007]

i dont think it is possible to do that with the computers people have right now even after a few years with the technologies we will have it would take hundreds of years to hack it so i guess we are pretty safe with the bitcoin technology

[ivanst776]

With shorena calculation there is almost impossible but if quantum computers will be alive then the things will be changed