Bitcoin puzzle transaction ~32 BTC prize to who solves it - page 200.

bestie1549

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Quote from: gacel on August 18, 2023, 07:00:04 AM

Quote from: bestie1549 on August 18, 2023, 06:34:25 AM

Quote from: Tepan on August 18, 2023, 02:29:28 AM

Just info.

Think in your own way and your own point of view about this WIF range

Do we have GPU crackers for WIF Private Keys? or do we have someone that can build 1? these have more potentials for brute forcing puzzle 66 from the Random Point of view for probably the last 16 - 18 characters ranges scanned sequentially, compared to the hexadecimal private keys because of the checksum involved in the WIF Private keys... this might be it, every hexadecimal key is valid but not all WIFs are which brings us to the point where scanning might be fun to play with

What is the point of this if what you see in every row is just representation of padded zeros?

That is the point right there "padded zeros" as explained earlier, the hexadecimal is just from 0 to F base16 whereas the WIF is a base58 equivalent of that base 16 hexadecimal representation... so what point does this make? Well, I can have 3.625 of the hexadecimal character represented as just 1 character of the WIF... this in otherwords simply means if you are able to hit the correct first 3 WIF characters, then you probably don't have too much range to scan compared to hitting the correct first 3 characters of the hexadecimal representation of the same key... you've got a long way to go bro... So i See some potentials in this WIF bruteforcing for the puzzle 66

gacel

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mcdouglasx

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Quote from: digaran on August 18, 2023, 01:19:48 AM

Quote from: lordfrs on June 19, 2023, 05:24:22 PM

Code:

from sympy import mod_inverse
import secp256k1 as ice
pub=ice.pub2upub('0433709eb11e0d4439a729f21c2c443dedb727528229713f0065721ba8fa46f00e2a1c304a39a77775d3579d077b6ee5e4d26fd3ec36f52ad674a9b47fdd999c48')
N=0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141

k=mod_inverse(2,N)
neg1=ice.point_negation(ice.scalar_multiplication(1))


def ters(Qx,Scalar):
     ScalarBin = str(bin(Scalar))[2:]
     le=len(ScalarBin)
     for i in range (1,le+1):
        if ScalarBin[le-i] == "0":
            Qx=ice.point_multiplication(k,Qx) 
        else:
            Qx=ice.point_addition(Qx,neg1)
            Qx=ice.point_multiplication(k,Qx)
     return ice.point_to_cpub(Qx)


for x in range(1,65536):
         print(ters(pub,x))

Hey man, I wanted to try your script but error is sympy module not found or doesn't exist. Any other way to get mod inverse working?

To install the `sympy` module on Windows, type CMD in the search bar and open Command Prompt and type
pip install mpmath, first and then pip install sympy.
put ice dll and secp256k1.py in the same folder where you have the script.

bestie1549

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vneos

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Quote from: SamReomo on August 18, 2023, 03:54:14 AM

Quote from: vneos on August 18, 2023, 03:30:25 AM

Is there anyone here who owns or can rent h100 gpu? I would like to know the performance of tools such as Bitcrack on this GPU.

I don't think that anyone would be willing to rent that GPU for you because I have searched it on a site and the rent of that GPU is around $1.99/hr which is very high for most people. If you really want to test the performance on Bitcrack on that GPU then you'll have to rent it out yourself.

Here is the link of the site that's offering renting of that GPU:
lambdalabs link

I must confirm you that I'm in no way affiliated with that site, I simply made a Google search and found that site. I would also recommend you to research about the legitimacy of the site your self before paying for GPU's rent. I would not be responsible for any damages or losses that occurs if you purchase plans on that site.

I have tried renting h100 on this website before, but it shows h100 are out of capacity.

So I want to ask if anyone has tried hunting on the h100, and if so, could you share the specific speed?

SamReomo

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Quote from: vneos on August 18, 2023, 03:30:25 AM

Is there anyone here who owns or can rent h100 gpu? I would like to know the performance of tools such as Bitcrack on this GPU.

I don't think that anyone would be willing to rent that GPU for you because I have searched it on a site and the rent of that GPU is around $1.99/hr which is very high for most people. If you really want to test the performance on Bitcrack on that GPU then you'll have to rent it out yourself.

Here is the link of the site that's offering renting of that GPU:
lambdalabs link

I must confirm you that I'm in no way affiliated with that site, I simply made a Google search and found that site. I would also recommend you to research about the legitimacy of the site your self before paying for GPU's rent. I would not be responsible for any damages or losses that occurs if you purchase plans on that site.

vneos

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Is there anyone here who owns or can rent h100 gpu? I would like to know the performance of tools such as Bitcrack on this GPU.

DegenHero

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Tepan

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Just info.

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Think in your own way and your own point of view about this WIF range

tarmi

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Quote from: GoldTiger69 on August 17, 2023, 04:31:36 PM

Quote from: ?? on ??

Quote from: bestie1549 on August 17, 2023, 01:48:45 PM

Pollard Kangaroo approach is for the know private key range and for the best, within 125 bit range and of course since you have the Multibit wallet handy all you have to do is "Once you located the files, if you have access to an old multibit app on you computer you need to import the wallet and export the private keys to a new wallet. If you do not have a copy of Multibit, you can use OpenSSL together with your password to decrypt the files and recover the keys."

You need the password to export them. I still have the wallet open every single day since then.
I just keep looking at what value i've missed out on

I'm confused, do you have the wallet or you don't? How come the wallet is lost and you have it open?

Maybe I'm missing something here?

All info can be found on github here

https://github.com/gurnec/btcrecover/issues/212

I've also posted the hash if anyone wants to take a shot at it, i offer a 5BTC reward.

digaran

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Quote from: lordfrs on June 19, 2023, 05:24:22 PM

Code:

from sympy import mod_inverse
import secp256k1 as ice
pub=ice.pub2upub('0433709eb11e0d4439a729f21c2c443dedb727528229713f0065721ba8fa46f00e2a1c304a39a77775d3579d077b6ee5e4d26fd3ec36f52ad674a9b47fdd999c48')
N=0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141

k=mod_inverse(2,N)
neg1=ice.point_negation(ice.scalar_multiplication(1))


def ters(Qx,Scalar):
     ScalarBin = str(bin(Scalar))[2:]
     le=len(ScalarBin)
     for i in range (1,le+1):
        if ScalarBin[le-i] == "0":
            Qx=ice.point_multiplication(k,Qx) 
        else:
            Qx=ice.point_addition(Qx,neg1)
            Qx=ice.point_multiplication(k,Qx)
     return ice.point_to_cpub(Qx)


for x in range(1,65536):
         print(ters(pub,x))

Hey man, I wanted to try your script but error is sympy module not found or doesn't exist. Any other way to get mod inverse working?

mcdouglasx

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Quote from: tarmi on August 17, 2023, 01:30:16 PM

hi members!

I have a multibit classic wallet that currently holds 17BTC
Somewhere in 2014/2015 i lost my wallet password.

Many attempts have been tried to bruteforce the wallet password, without any success.
KeychainX, dave bitcoin, everyone already tried to guess or break my password.

Would you asume there is a possibility to use software to try and recover my wallet using the Pollard approach?
Can someone point me in the right direction on what sofware and settings i should be using?

I still have access to the Multibit wallet, only the password is missing.
I have my wallet address and it's public key.
Maybe this could come in handy to extract certain transaction data?

Thank you

What I would do in your case is find out what version of multibit you had when you created the wallet, the type of encryption that the software used at that time and inquire about a bug on that date, the language of your computer keyboard, maybe you used an unusual character that those who tried to help you with brute force did not enter, there may be a character in your password that is not included in their tools, a simple space key, or any other, as well as the type of format of plain text of the file, salt, etc...
In short, I would make a code replicating the source environment to avoid errors in brute force.

mcdouglasx

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Quote from: tarmi on August 17, 2023, 01:49:44 PM

Quote from: GoldTiger69 on August 17, 2023, 01:46:36 PM

I have experience working with multibit wallets. Maybe I can help.

The wallet itself is lost. Dave Bitcoin has been working on it since early 2014, bruteforce of the entire range up to 10 characters has been attempted.
At one point, KeychainX found a false positive using the words i gave him, but it was just that - a false positive.

My only remaining options at this point are to handle this like solving the puzzles, but with my own wallet Undecided

Quote from: bestie1549 on August 17, 2023, 01:48:45 PM

Pollard Kangaroo approach is for the know private key range and for the best, within 125 bit range and of course since you have the Multibit wallet handy all you have to do is "Once you located the files, if you have access to an old multibit app on you computer you need to import the wallet and export the private keys to a new wallet. If you do not have a copy of Multibit, you can use OpenSSL together with your password to decrypt the files and recover the keys."

You need the password to export them. I still have the wallet open every single day since then.
I just keep looking at what value i've missed out on

If you have the .key or .wallet file, your best option is brute force, if they haven't been able to help you with brute force 10 characters? (or that's what I understood), it's simple, programmer error.
maybe it's an encryption problem, some software have had problems logging in when updates are applied, or special characters that are interpreted differently.

digaran

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Quote from: tarmi on August 17, 2023, 02:17:07 PM

Quote from: digaran on August 17, 2023, 02:03:31 PM

Have you tried hashcat yet?

Wish you find your coins, good luck.

I've spent close to 250k since 2014 on this, so, yes.
Bruteforcing is no option.

Dave succesfully recovered a wallet holding +- 1800BTC around the same time (lost all passwords the same day), so i know he's a capable guy.
If he tells me after almost ten years it's impossible using the bruteforce technique, then i trust him.

I guess i'll wait it out until our technology evolves.

Well, what I described has nothing to do with brute force, it's also not related to technology, it's a rather simple math equation.

I have heard and read about Dave's work, seems legit and secure to give him wallet hash, best way to crack a wallet's password without giving him access to the wallet if he can crack it.

But password recovery and elliptic curve operations are different, however a 256 bit key is not possible to solve currently.

Just a friendly advice, never spend money on recovery before calculating everything scientifically, always ask experts for precise calculations of success, time, odds, probability etc.😉

GoldTiger69

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Quote from: ?? on ??

Quote from: bestie1549 on August 17, 2023, 01:48:45 PM

Pollard Kangaroo approach is for the know private key range and for the best, within 125 bit range and of course since you have the Multibit wallet handy all you have to do is "Once you located the files, if you have access to an old multibit app on you computer you need to import the wallet and export the private keys to a new wallet. If you do not have a copy of Multibit, you can use OpenSSL together with your password to decrypt the files and recover the keys."

You need the password to export them. I still have the wallet open every single day since then.
I just keep looking at what value i've missed out on

I'm confused, do you have the wallet or you don't? How come the wallet is lost and you have it open?

Maybe I'm missing something here?

bestie1549

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Activity: 75

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Quote from: tarmi on August 17, 2023, 02:17:07 PM

Quote from: digaran on August 17, 2023, 02:03:31 PM

Have you tried hashcat yet?

Wish you find your coins, good luck.

I've spent close to 250k since 2014 on this, so, yes.
Bruteforcing is no option.

Dave succesfully recovered a wallet holding +- 1800BTC around the same time (lost all passwords the same day), so i know he's a capable guy.
If he tells me after almost ten years it's impossible using the bruteforce technique, then i trust him.

I guess i'll wait it out until our technology evolves.

So who's this mighty Dave Guy?
I guess he must be very conversant with the password utils more than the private keys utils that we are handy with. But we will definitely say you should never let your gourd down because you still have hopes and you could just have a dream and remember what your forgotten password was... but unlike the private key operation, you can wake up from a dream remembering all 64 hexadecimal character private key or 51/52 compressed or uncompressed format of your private key... except you wrote it down somewhere or backed it up somehow.

Best we leave this for Dave to handle and maybe someday when we have the private keys backed up with passwords for stronger security against theft when the EC curve has been defeated... maybe until then will we be able to ask for Dave's assistance but right now... 66 bits is slapping our faces mercilessly that we don't know a way to tackle it...

tarmi

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Quote from: digaran on August 17, 2023, 02:03:31 PM

Have you tried hashcat yet?

Wish you find your coins, good luck.

I've spent close to 250k since 2014 on this, so, yes.
Bruteforcing is no option.

Dave succesfully recovered a wallet holding +- 1800BTC around the same time (lost all passwords the same day), so i know he's a capable guy.
If he tells me after almost ten years it's impossible using the bruteforce technique, then i trust him.

I guess i'll wait it out until our technology evolves.

bestie1549

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Activity: 75

Merit: 5

Quote from: ?? on ??

Quote from: bestie1549 on August 17, 2023, 01:48:45 PM

Pollard Kangaroo approach is for the know private key range and for the best, within 125 bit range and of course since you have the Multibit wallet handy all you have to do is "Once you located the files, if you have access to an old multibit app on you computer you need to import the wallet and export the private keys to a new wallet. If you do not have a copy of Multibit, you can use OpenSSL together with your password to decrypt the files and recover the keys."

You need the password to export them. I still have the wallet open every single day since then.
I just keep looking at what value I've missed out on

The difference between your case and the puzzle is that we can't know the specific bit range just by looking at the public key and transactions from your pubkeys can't tell us what range the private key would be or else all of Satoshi wallets with exposed pubkeys would have been emptied by now. The best we would need to do is scan from first bit all the way to the end of the 256 bit range which of course would be like trying to scan for the wallets of Satoshi with the 50 bitcoins from the early mining... wouldn't pay off stilleven if you are able to scan for 1 wallet successfully, you'd need funds from 10 of those wallets to scan for just 1

james5000

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Quote from: digaran on August 17, 2023, 08:36:15 AM

Speaking of spamming the topic with unimportant content!

When you guys realize that in order to find a key based on address alone, first you'd need to break rmd160, then sha256 to get the public key and then find the private key based on the public key, since only public key and private key are directly related mathematically.

What you should do instead now that you are using your time, you should find any relation between similar addresses and their public/ private keys with their sha256 hashes, at least this way you are one step closer to solving 66 etc, because you won't have to face rmd160.

However, trying to do that will require more power and time than solving the puzzle #160.

So don't waste your time on something that difficult, try finding ways to go around the EC rules and break/ bend them either completely or partially.

For example, this is a method to partially break EC :

Divide a point by e.g, 5, then divide n by 5, and then add the result of p/5 to n/5, if your point is not divisible by 5 depending on the last digit of the private key, the division result differs.

Demonstration :
823 / 5 = 164.6
Now all you need is to extract 0.6 of n in secp256k1 and keep it for next operation, then after dividing 823 by 5, you just divide n by 5 and add the result of 823/5 to n/5 + 6/10 of n = 164

But what happens if we divide 822 / 5 = 164.4, just follow the previous steps this time extract 4/10 of n to add to your second result.

We just broke EC by simple math operations, though when your key is large and unknown, the fraction could be any percentage of n, but if you divide by 2 up to 9, since any key can only have 0 up to 9 on it's last digit, 1 out of 10 division + n/th + n/remainder will work.

I could never find these things out if I was still working on addresses and hashes.😉

Quote

what I need to know is, how to get the checkpoints for the puzzle 130 and how many checkpoints do i need their x coordinates in the checkpoints? Also will the code print the target public key's equivalent private key or will it save it to a file? Thanks as we all learning...

You can use key subtracter by alberto, https://bitcointalksearch.org/topic/keysubtracter-test-development-requests-bug-reports-5360656

You could use a known public key and use -a - s with -r 0:f -n 30 to have 15 + and -15 of your known public key, however use -z and -x to have only x coordinates, then you can convert them all to decimal.

Simply the best idea I've seen in days, truly ingenious. I will run some tests and check some calculations, thank you very much!! Cheesy

digaran

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Quote from: tarmi on August 17, 2023, 01:30:16 PM

hi members!

I have a multibit classic wallet that currently holds 17BTC
Somewhere in 2014/2015 i lost my wallet password.

Many attempts have been tried to bruteforce the wallet password, without any success.
KeychainX, dave bitcoin, everyone already tried to guess or break my password.

Would you asume there is a possibility to use software to try and recover my wallet using the Pollard approach?
Can someone point me in the right direction on what sofware and settings i should be using?

I still have access to the Multibit wallet, only the password is missing.
I have my wallet address and it's public key.
Maybe this could come in handy to extract certain transaction data?

Thank you

In here we are aliens with passwords, we only work with public keys, you could post it here so we could check it out ( not making any difference, because we are stuck with keys smaller than 160 bit ).

Have you tried hashcat yet?
Regarding pollard's method aka kangaroo, you could divide your public key by 2 but before that either add 1G or subtract 1G then you'll have 2 public keys, original and it's +1, you could divide them both by 2 four times in a row, then add 1G to each result and divide all of them by 2, at the end you will have millions of keys, which would be impossible to do the division and addition manually you'd need a program to do that which doesn't exist, but if you could do that then for example you could divide n of secpk1 by 2 as many times as you divided your public key and input those millions/ billions of offsets into kangaroo and then use n/2, n/4, n/8 etc as your start range, you could subtract an estimated number from your n/2 and use it as start and add that estimated number to n/2 and use it as end range, I'd imagine you'll have to try at least 200 start/end ranges one by one and spend at least 6 hours for each search.

Wish you find your coins, good luck.

Topic: Bitcoin puzzle transaction ~32 BTC prize to who solves it - page 200. (Read 248912 times)