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Topic: Large Bitcoin Collider (Collision Finders Pool) - page 39. (Read 193404 times)

legendary
Activity: 1140
Merit: 1000
The Real Jude Austin
I'm back.

How is this luxury trip being financed?  Perhaps a sudden windfall of BTC?  Whose BTC?  How obtained?  

No BTC involved whatsoever. I just made a deal with a European top model to be at her service and she
promised to pay for the trip. Life's hard.



~160 Mkeys/s while I was away. Wow! Seems #49 has not been found yet, at least I have no info about it.
But I see quite some janitoring has to be done (promised undelivered blocks) - please people end your sessions
with "e" + return (and wait), instead of Ctrl-C

It'd be quite some irony if #49 was in one of the blocks to be re-issued.



I managed to hack some things after fulfilling my duties with aforementioned model, so expect some news
and releases this weekend. Spoiler alert: You may want to make sure OpenCL is installed correctly on your
machine.  Wink


Rico


Eeeeeeeeee
member
Activity: 114
Merit: 11
I'm back.

How is this luxury trip being financed?  Perhaps a sudden windfall of BTC?  Whose BTC?  How obtained?  

No BTC involved whatsoever. I just made a deal with a European top model to be at her service and she
promised to pay for the trip. Life's hard.



~160 Mkeys/s while I was away. Wow! Seems #49 has not been found yet, at least I have no info about it.
But I see quite some janitoring has to be done (promised undelivered blocks) - please people end your sessions
with "e" + return (and wait), instead of Ctrl-C

It'd be quite some irony if #49 was in one of the blocks to be re-issued.



I managed to hack some things after fulfilling my duties with aforementioned model, so expect some news
and releases this weekend. Spoiler alert: You may want to make sure OpenCL is installed correctly on your
machine.  Wink


Rico


wow!
tell me if you need to test on GTX 1080 and TESLA K80  Wink
legendary
Activity: 1120
Merit: 1037
฿ → ∞
I'm back.

How is this luxury trip being financed?  Perhaps a sudden windfall of BTC?  Whose BTC?  How obtained?  

No BTC involved whatsoever. I just made a deal with a European top model to be at her service and she
promised to pay for the trip. Life's hard.



~160 Mkeys/s while I was away. Wow! Seems #49 has not been found yet, at least I have no info about it.
But I see quite some janitoring has to be done (promised undelivered blocks) - please people end your sessions
with "e" + return (and wait), instead of Ctrl-C

It'd be quite some irony if #49 was in one of the blocks to be re-issued.



I managed to hack some things after fulfilling my duties with aforementioned model, so expect some news
and releases this weekend. Spoiler alert: You may want to make sure OpenCL is installed correctly on your
machine.  Wink


Rico
member
Activity: 62
Merit: 10
#49 anyone ?
legendary
Activity: 3431
Merit: 1233
Enjoy your holiday!

What holiday? He isn't entitled to go on a holiday! He hasn't found even a single collision.
legendary
Activity: 1932
Merit: 2077
Good news, from 6M + 2S to  4,5M +2S for each point!

Considering that your current code performs 6M + 1S only for the transition from jacobian to affine coordinates for each point and that you are using J+J --> J to perform each addition (12M + 4S), your current cost should be 18M + 5S each point.

Let's say 1S = 0,8M, then my code should be about 3,5 faster than yours.

If you are now using instead  J+A --> J to perform addition (8M + 3S), then my code should be 2,8 faster than yours.

If you implement:

1)  (X,Y) , (X,-Y)   --> 2x

2)  endomorphism  --> 3x (but non free, 1M for each point)

3) 4,5M + 2S generation --> 2,8x / 3,5x

you could speedup your points generation about x 15 (at least). Maybe less if your field multiplication is so optimized that it makes field additions/negations not negligible.

Enjoy your holiday!
legendary
Activity: 1140
Merit: 1000
The Real Jude Austin
wow HeavenlyCreatures use gpu maybe  Cheesy

I think that is privatenode.
legendary
Activity: 1638
Merit: 1001
For the next week, I'll be having fun in the Alps and will be trying to not break my legs - or neck.
I leave you with the LBC ... unattended, so I hope the pool will not be completely dead when I return.  Wink


Managed to push out a stats update with a graph showing the 24h pool speed average
(if you look at the X-axis right to left, thats like 0 = [now, -24h] -1 = [-24h, -48h] etc.)

So if you will not hear anything from me for the next 168hours, do not worry, I probably haven't been murdered yet.  Wink


Rico


How is this luxury trip being financed?  Perhaps a sudden windfall of BTC?  Whose BTC?  How obtained? 
legendary
Activity: 1120
Merit: 1037
฿ → ∞
For the next week, I'll be having fun in the Alps and will be trying to not break my legs - or neck.
I leave you with the LBC ... unattended, so I hope the pool will not be completely dead when I return.  Wink


Managed to push out a stats update with a graph showing the 24h pool speed average
(if you look at the X-axis right to left, thats like 0 = [now, -24h] -1 = [-24h, -48h] etc.)

So if you will not hear anything from me for the next 168hours, do not worry, I probably haven't been murdered yet.  Wink


Rico
legendary
Activity: 1932
Merit: 2077
New version of symmetric function, only 2M + 1S

Code:
def symmetric(x1,y1,x2,y2,z3inv):

a=((y2+y1)*z3inv)      % p   #1M
b=a**2       % p   #1S
x4 = (b - x1 - x2)     % p  
y4 = (a*(x4-x1) - y1)  % p   #1M      
 
        return x4,y4

then we pass from 7M + 1,5S for each point to 6M + 2S.
legendary
Activity: 1120
Merit: 1037
฿ → ∞
Why client wrote
Quote
Server doesn't like us. Answer: wrong secret

Look at #371 - #374
https://bitcointalksearch.org/topic/m.17644236


Rico
legendary
Activity: 2296
Merit: 1057
Why client wrote
Quote
Server doesn't like us. Answer: wrong secret
legendary
Activity: 1120
Merit: 1037
฿ → ∞
Thanks for your insight -  it's a benefaction for me to see someone who understands.

How do you propose this "stopping" be demonstrated, or enforced?  My understanding is there are now several people who have the functional software. (Am I wrong?  Can only thread OP actually test-for-success the work submitted by pool participants?)

All of the checking is being done with the clients and they are out there. So if today/tomorrow the LBC pool ceased to exist, all the clients could continue to work with manual address spaces.

Code:
./LBC -c cpus -p from-to

They could agree on distributing the search space among them via email, carrier pigeon or smoke signals. Probably sooner or later someone came up with some neat IT solution that replaced the smoke signals, put some stats on some webpage...


Quote
Also, while at least three people have expressed dismay at this public exercise, and urged, implicitly or otherwise, it's cessation - does anyone have the responsibility for seeking out persons (if any) engaged in an identical non-public effort?  

becoin said he'd spend the rest of his life on this holy crusade. Yes, that's what he said.


Rico
legendary
Activity: 1120
Merit: 1037
฿ → ∞
wow HeavenlyCreatures use gpu maybe  Cheesy

Unlikely - looks more like 200 140 CPUs, but the pool key generation rate is rising hard.
We just broke the magical 128 Mkeys/s - which is equivalent of searching 1 million pages on directory.io per second!

The pool performance shown is a 48h median, current (fluctuating) speed is above 200 Mkeys/s, with that rate, we will hit #49 of the puzzle transaction in less than a week.


Rico
member
Activity: 114
Merit: 11
wow HeavenlyCreatures use gpu maybe  Cheesy
legendary
Activity: 1120
Merit: 1037
฿ → ∞
The pool just cracked it's all time high (98 Mkeys/s) and rising...


becoin ... oh becoin

The point is it's not a collision that is found. The privkey is guessed because 1) it was generated with some crappy RNG, 2) very weak brain wallet pass was used, or 3) address simply belongs to same people that "found" it. In short, the cryptoguru doesn't know what does collision mean.

Quoted for future reference.

Everybody (including me) knows that a collision is found when two different private keys to the same address are found. You are most welcome to set up a project to find a collision as you think it should be done. Teach us more becoin - how would you do it?

...


Rico
legendary
Activity: 1120
Merit: 1037
฿ → ∞
1. The "About" section claims that the reason "why" is because somebody said it wasn't possible. That certainly makes sense but once the first "collision" was found the point was proven and there is nothing to prove anymore so why keep going?

A collision is found as soon as you have two different private keys that evaluate to the same Address.
We found two addresses with funds, the keys are weird (either broken RNG or real collisions of a "regular private key") but up to now no one came with an alternate key - so we cannot be sure it's a collision.

Quote
2. If a "collision" is found the amount (if any) is "misplaced" (i.e. stolen) into so-called custodial address. The reason for that is because when the discovery is announced somebody else could quickly find the same and steal it. And the reason why the discovery is announced in the first place is.. to prove the point that has already been proven? Again, why this whole thing still keeps going? To prove the point was a valid and perfectly understandable reason. What valid reason is there now?

If we simply announce the private key and the funds stay where they are - they are gone and no one knows who drained them (simply the person who was quickest). By the process of transferring them to a custodial address and announcing we can "protect them". Now I believe that let alone the announcing of having found something and stating the custodial addresses should make it dead clear that this is not some stealing. If anybody wanted to steal - why make it public? I really get tired of having to explain this.


Quote
3. The webpages are full of "rightful owner" this, "rightful ownership" that, but how is this rightful owner supposed to find out about what really happened, i.e. that they in fact weren't robbed, they were just "robbed"?

How about you look at: https://blockchain.info/address/1PVwqUXrD5phy6gWrqJUrhpsPiBkTnftGg

Quote
Assuming that every owner of bitcoins in the whole world will somehow magically become aware of some random thread at some random Internet forum and from now on will be anxiously reading it every day for the rest of their lives is just insane.

Have you read https://blockchain.info/address/1PVwqUXrD5phy6gWrqJUrhpsPiBkTnftGg already?

As for checking a "random thread" somewhere: I believe when LBC finds some more addresses, it will not be a "random thread" somewhere, but a quite well known thread. Also the development is not finished yet. I may set up a RSS feed for https://lbc.cryptoguru.org/trophies.

Quote
4. So far only empty or almost empty addresses have been found but what will happen when some reasonable amount (hundreds or thousands BTC) is found? Will the "announcing" and "misplacing" happen again?

As far as I am concerned - yes.

Quote
If somebody has such an amount in one address they are either stupid or they have many similarly loaded addresses. If the latter is the case then aren't you afraid what may happen to you and your dear ones if you piss off the wrong people? I don't see it entirely unrealistic if some angry criminals tracked you down and murdered you and your whole family, and they will most certainly not care one single bit about your "proving the point", "custodial address" etc. bullshit.

Ok - I think we can stop it here, because your choice of words proves you are not here to have questions, you have some opinion already. You also watch movies too much.

But just for the fun of it, to entertain your "army of hitmen coming after me and my friends": If anything like that was to happen. And it's a big IF because the pool would have to find something, actually my client would have to, so I would do the custodial transfer, they would have to find out who I am (which is the easiest part), they would have to be totally dumb (but criminals often are) to not simply get their funds back by providing their alternate private key....

I certainly hope they would not be as dumb as to killing me immediately, but torture me 1st for the private key of the custodial address.  Wink
Because else - you know - they would need LBC to find that.  Cheesy


Rico
newbie
Activity: 23
Merit: 0
Rico, i made this website, there's a thread about directory with balance need CORS here, and the author lost his source code. so i made this from directory original code.

https://bitcointalksearch.org/topic/upgrade-directoryio-program-1774983
legendary
Activity: 3431
Merit: 1233
Hi,

I read a bit about this project at lbc.cryptoguru.org and (addressing anybody and everybody who is doing this) I have a few questions:

1. The "About" section claims that the reason "why" is because somebody said it wasn't possible. That certainly makes sense but once the first "collision" was found the point was proven and there is nothing to prove anymore so why keep going?


The point is it's not a collision that is found. The privkey is guessed because 1) it was generated with some crappy RNG, 2) very weak brain wallet pass was used, or 3) address simply belongs to same people that "found" it. In short, the cryptoguru doesn't know what does collision mean.
legendary
Activity: 1638
Merit: 1001
Hi,

I read a bit about this project at lbc.cryptoguru.org and (addressing anybody and everybody who is doing this) I have a few questions:




Should they stop, or just assert they stopped and continue in private?  

How do you propose this "stopping" be demonstrated, or enforced?  My understanding is there are now several people who have the functional software. (Am I wrong?  Can only thread OP actually test-for-success the work submitted by pool participants?)

Also, while at least three people have expressed dismay at this public exercise, and urged, implicitly or otherwise, it's cessation - does anyone have the responsibility for seeking out persons (if any) engaged in an identical non-public effort?  
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