Bitcoin Forum
May 08, 2024, 05:37:00 PM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: [1]
1  Bitcoin / Bitcoin Technical Support / Btcrecover Speed Question on: July 29, 2021, 06:32:23 AM
Hello Everyone,
Iam using vast.ai with btcrecover trying to recover my wallet. i have tried different machines and currently trying 8x RTX 3090 machine, GPUs are loaded successfully and want to ask about processing speed.

i see 20 (kP/s) for all 8 GPUs, is that a reasonable number taking in consideration the powerful machine?

appreciate your input.

P.S here is the command i am using:

python3 btcrecover.py --data-extract-string MY_STRING_HERE --tokenlist tokenmain.txt --dsw --no-eta --no-dupchecks --enable-gpu --global-ws 4096 --local-ws 256 --autosave autosave.file
2  Bitcoin / Wallet software / Re: Multi GPU on Multi Server Question on: July 03, 2021, 02:13:39 PM
You are right, i am trying to recover my wallet password.

Thanks for the info. i guess you can use multiple GPUs using mentioned article but you can't combine the power of all distributed servers in one single process. what i want is to have the processing power of all rented servers ( let us say 5 servers whereby each server has like 5 GPUs), so total processing power will be (5 GPUs power X 5 Servers).

will BTCRecover distributed solution do that? as far i know Hashcat will do it using my desired way right?

Having wallet extract is an excellent idea, i will see how to do it then try out the distributed solution.

Cheers
3  Bitcoin / Wallet software / Re: Multi GPU on Multi Server Question on: June 30, 2021, 07:05:14 AM
For hashcat, there should be sollutions, eventough i've never tried them, and they're probably not a one-click-sollution (but rather a manual setup);

https://hashcat.net/wiki/doku.php?id=frequently_asked_questions#how_can_i_distribute_the_work_on_different_computersnodes

Like i said: never tried this myself... But it should work...

Brilliant, Thank you so much for your help.
4  Bitcoin / Wallet software / Multi GPU on Multi Server Question on: June 30, 2021, 06:42:19 AM
Hello Everyone,
Is it possible to combine the power of multi GPU on multiple servers? let us say i want to rent 5 instances from Vast.ai whereby each instance has 2x or 4x GPUs (1080 or 2080 etc..), is there a way to connect them all whereby BTCrecover or hashcat or any other software can see them as one server to use the total power?

Appreciate your help.
5  Bitcoin / Bitcoin Technical Support / Re: How to retrieve uncompressed public key? on: March 17, 2021, 12:52:07 PM
Did you forget the password of your wallet.dat or do you remember it?

If you remember, then you can skip the process of getting public keys entirely, and open Bitcoin Core andsend the wallet's balance to another wallet.

If you don't remember the password, then you need to understand that wallet.dat files have several hundred private keys inside it and that each one has a corresponding public key and address. You only need the public keys for addresses that have a non-zero balance in them.

You sound like you know how to use tools, so you should run Pywallet with the --dumpwallet switch to get a list of addresses inside. The private keys might be encrypted but that is not a problem for now.

Then, use block explorer like Blockchair to check if 1) the address is in their records - in other words, there is a transaction associated with it - and 2) if any bitcoins have been sent from those addresses. This'll give a compressed public key, but if a tool only accepts uncompressed keys there is a method to convert between the two.

The latter part is important because the public key is only exposed for outgoing transactions. If an address has only received incoming transactions then its public key has not been revealed and you only have a hash160.

P.S. it is far more likely you can recover the wallet if you brute force the password instead of each public key because you might have a faint remembering of the password while you have to search the entire 256-but range for each public key, and it will be almost impossible even for one public key.

Thank you so much, what is the best tool to use brute force? i heard btcrecover and hashcat will do the job, which is the fastest method? i have solid server with 32GB RAM and Xeon processor, i also can rent 8x RTX 2080ti GPU Servers? appreciate your response.

P.S i dont remember the password but i have handful of suggestions that i can start with.
6  Bitcoin / Bitcoin Technical Support / Re: How to retrieve uncompressed public key? on: March 17, 2021, 11:16:17 AM
Thank you guys for your responses. i will try with pywallet and see how things will go following your instructions.
7  Bitcoin / Bitcoin Technical Support / How to retrieve uncompressed public key? on: March 17, 2021, 06:54:24 AM
Hello Everyone,
I am trying to recover my old wallet from my desktop (wallet.dat), i will be trying few tools (keyhunt and Kangaraoo), such tools require uncompressed public key. i can retrieve mkey and other ckeys but not Uncompuressed Public key? is there a way or tool to do it?

Thanks.
8  Bitcoin / Bitcoin Technical Support / Re: Help with BTCRecover on: February 23, 2021, 06:44:53 AM
You are going to want to make a token file. The instructions on how to do this are here: https://github.com/3rdIteration/btcrecover/blob/master/docs/tokenlist_file.md
See in particular this section: Expanding Wildcards

If I'm reading your post correctly, your token file should look something like this:

Code:
abc123%7,8in

This will try all passwords beginning with abc123 followed immediately by either 7 or 8 characters of digits, lowercase letters, and uppercase letters (so only 13 and 14 character long passwords). If you wanted to try every password from 7 characters up to 14 characters, you would instead use:

Code:
abc123%1,8in

Brilliant, thank you so much for the great help.

can you please elaborate more on the differences between the two examples you put? i do understand the concept but can you clarify it a bit so i can for sure know which one to use?

Also, is there a feature to save the password IF FOUND to a file so in case the session got disconnected for any reason?

Thank you again.
9  Bitcoin / Bitcoin Technical Support / Help with BTCRecover on: February 22, 2021, 07:11:52 PM
Hello Everyone,
I am new to this but i have read a lot of tutorials to get away to recover my wallet, i am using bitcoin core software and managed to fetch my old wallet from an old machine but with an issue that i forgot part of the password i placed on my wallet.

i am trying to recover it using btcrecover but having difficulties running the app properly with the right combination, i do know part of the password, password around 13-14 characters i guess and i know 6 out of them, its a combination of letters and numbers with no special characters so what i want from btcrecover is to use my known part and tries generated combinations of small letters and numbers. to clarify it:

what is the command to make it run like this:

USE_KNOWN_PART + "BTCRecover generation combination"
"abc123" + "all possible combinations" < 14 characters

i hope i delivered my question properly, i appreciate any help in that regard please, i don't want to lose 0.25 BTC :S

Pages: [1]
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!