Topic: Missing 10 Characters in WIF Private Key - Can I recover them? - page 2. (Read 1960 times)
February 17, 2022, 04:49:06 AM
Hey Bro, I read through everything. I Know John Cantrell Wrote a program in Rust for seed phrases. We could tweak that and make it work for PKEYS. Let me try tweaking it and if it works Ill update you all and go from there. I have 8 Tesla V100s that may also help if need be. If anyone here is a Rust language Master please PM me as I am only Learning it.
January 18, 2022, 03:19:46 PM
its more than 16 days now... I hope you could find something bro.
January 03, 2022, 12:29:41 PM
Check your pm for a python script
No python script...
As to everyone else who has been helping thank you so much. I will 100% give a bounty out to everyone that has added some help to this effort. I am really hoping the 2 newly identified characters are correct. Based on my estimation with a missing 8 characters and unsure if the second if its w, x, y, z it will take 3.9 days per run (w, x, y, z are the runs) so 3.9 x 4 is roughly ~16 days. I hope to come back with really good news and if not well lesson learned to get water proof paper lol...
Thank you all again,
S.
January 03, 2022, 11:18:49 AM
~ remaining 8 characters at a combined speed of 400Mkeys/s, over Discord. The estimated runtime is 16 days. ~
These numbers don't look correct.With 8 missing characters it should take less than 4 days (1/4 the reported runtime) to check all permutations.
Code:
58^8= 128,063,081,718,016 / 400,000,000 k/s = 320,157 s = 3.7 days
That's because he wasn't sure that the "w" at the beginning of "Kw" was correct so he wanted to check Kw, Kx, Ky and Kz just to be sure.
January 03, 2022, 07:05:35 AM
Check your pm for a python script
January 03, 2022, 04:57:03 AM
~ remaining 8 characters at a combined speed of 400Mkeys/s, over Discord. The estimated runtime is 16 days. ~
These numbers don't look correct.With 8 missing characters it should take less than 4 days (1/4 the reported runtime) to check all permutations.
Code:
58^8= 128,063,081,718,016 / 400,000,000 k/s = 320,157 s = 3.7 days
I had different calculations... Anyway, the problem is that OP is unsure about one of known characters, so work must be multiplied *4.
January 02, 2022, 10:55:44 PM
~ remaining 8 characters at a combined speed of 400Mkeys/s, over Discord. The estimated runtime is 16 days. ~
These numbers don't look correct.With 8 missing characters it should take less than 4 days (1/4 the reported runtime) to check all permutations.
Code:
58^8= 128,063,081,718,016 / 400,000,000 k/s = 320,157 s = 3.7 days
January 02, 2022, 10:09:13 PM
The OP has since identified two of the unknown WIF characters at the end.
I'm curious: how did they do this?Was it something like mynonce's scenario?
Kw**********jcQ...
** -> paper / chemical analysis / recover characters
****** -> hole / no paper
** -> paper / chemical analysis / recover characters
****** -> hole / no paper
It was through taking a hard look at the piece of paper, not any chemical analysis
January 02, 2022, 05:32:43 PM
The OP has since identified two of the unknown WIF characters at the end.
I'm curious: how did they do this?Was it something like mynonce's scenario?
Kw**********jcQ...
** -> paper / chemical analysis / recover characters
****** -> hole / no paper
** -> paper / chemical analysis / recover characters
****** -> hole / no paper
January 02, 2022, 02:02:52 PM
Update:
The OP has since identified two of the unknown WIF characters at the end.
The OP has since identified two of the unknown WIF characters at the end.
Very good! But not that way? Do you know, how?
and for the WIF private key I'd have Kw**********jcQmKRPNTF8CU9H1thzC981DCrZgmS4m8ygXFCEk (this is just an example, no funds are here)
Is the paper missing after Kw or is there enough paper for some letters, so that the chemical analysis would help you to recover some more characters to make the calculation easier?
For example:
Kw**********jcQ...
** -> paper / chemical analysis / recover characters
****** -> hole / no paper
-> so you would have 6 missing characters
January 02, 2022, 12:34:08 PM
Indeed. He contacted me and we have some estimations. With 10 missing characters it is really doubtful, but as he wants to risk with 2 extra characters, it is more realistic. My estimation for his cards was 400MKeys but with settings he sent me it will be a bit less. Estimation was 11 days, BUT unfortunately he said he is not sure about the beginning, so maybe it will be around 40 days total (11 days for Kz, Ky, Kx and around 7 days for Kw).
We will see…
We will see…
January 02, 2022, 11:05:19 AM
Update:
The OP has since identified two of the unknown WIF characters at the end. We managed to get Bitcrack running on his two GTX 1070's searching for the remaining 8 characters at a combined speed of 400Mkeys/s, over Discord. The estimated runtime is 16 days. Hopefully, it turns up with his lost WIF.
The OP has since identified two of the unknown WIF characters at the end. We managed to get Bitcrack running on his two GTX 1070's searching for the remaining 8 characters at a combined speed of 400Mkeys/s, over Discord. The estimated runtime is 16 days. Hopefully, it turns up with his lost WIF.
December 31, 2021, 05:54:21 AM
@soferox
I have made test too 4 digit recovery take 75 to 80sec on single core CPU. 10 digit is way out of range for CPU.
but it's possible to code something for GPU just for WIF solving.
but it's depend on how much your address is holding and how much reward we are talking.
if it's worth it, hire coder who can make cuda kernel for bf WIF and its take few minutes to recover that.
but cuda coding is not cheap.
I have made test too 4 digit recovery take 75 to 80sec on single core CPU. 10 digit is way out of range for CPU.
but it's possible to code something for GPU just for WIF solving.
but it's depend on how much your address is holding and how much reward we are talking.
if it's worth it, hire coder who can make cuda kernel for bf WIF and its take few minutes to recover that.
but cuda coding is not cheap.
December 31, 2021, 03:41:33 AM
Man really wish I'd have done at least 1 tx on this thing.
I know it's a long shot, but still: Any chance you ever signed a message to prove ownership of that address?Thats a good idea, but ssadly this was a offline wallet from the start and never used, only ever deposited into.
Thanks tho
S.
December 31, 2021, 02:50:06 AM
Man really wish I'd have done at least 1 tx on this thing.
I know it's a long shot, but still: Any chance you ever signed a message to prove ownership of that address? December 30, 2021, 06:12:30 PM
Blah thats right. Man really wish I'd have done at least 1 tx on this thing.
December 30, 2021, 05:33:52 PM
SO I may have gotten lucky and found an old screenshot of wallet that contains a Hash160 address. That is the public key right? Please tell me I just got lucky and can use the kangaroo stuff above?
No, with that Hash160 address, you calculate your Bitcoin address.
For example : 1B2Q8vPm5E5b8yxaNWUW5ZfdCR5Zu1KMJn
examples of public keys:
public key (uncompressed)
04b4632d08485ff1df2db55b9dafd23347d1c47a457072a1e87be26896549a87378ec38ff91d43e 8c2092ebda601780485263da089465619e0358a5c1be7ac91f4
public key (compressed)
02b4632d08485ff1df2db55b9dafd23347d1c47a457072a1e87be26896549a8737
or
03b4632d08485ff1df2db55b9dafd23347d1c47a457072a1e87be26896549a8737
they all start with 02, 03 or 04
length is 66 or 130 characters (0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f) letters can be upper case (A,B,C,D,E,F)
December 30, 2021, 05:22:47 PM
What kind of hardware did he have to solve 10 characters in 11 minutes! Thats awesome and is exactly what I need. going to look into this as well now!
You can't do it in that short time, as you don't have the public key.
1 year ago, user PawGo calculated exactly your case (10 missing WIF characters) but with the public key in less than 11 minutes.
Not bad, no? 
10 missing WIF characters - Less than 11 minutes on old CPU. GPU performance - to be seen.
That's fantastic. I'll have to go back to check Pollard's kangaroo algorithm again. 10 missing WIF characters - Less than 11 minutes on old CPU. GPU performance - to be seen.SO I may have gotten lucky and found an old screenshot of wallet that contains a Hash160 address. That is the public key right? Please tell me I just got lucky and can use the kangaroo stuff above?
Thanks,
S.
December 30, 2021, 04:21:20 PM
What kind of hardware did he have to solve 10 characters in 11 minutes! Thats awesome and is exactly what I need. going to look into this as well now!
You can't do it in that short time, as you don't have the public key.
1 year ago, user PawGo calculated exactly your case (10 missing WIF characters) but with the public key in less than 11 minutes.
Not bad, no? 10 missing WIF characters - Less than 11 minutes on old CPU. GPU performance - to be seen.
That's fantastic. I'll have to go back to check Pollard's kangaroo algorithm again. 10 missing WIF characters - Less than 11 minutes on old CPU. GPU performance - to be seen.Ok that makes sense. Seems like bitcrack is my only hope at this point. Thank you for your continued help. Should I solve this I would love to pay everyone a bounty who has helped
Thanks,
S.
December 30, 2021, 04:19:12 PM
What kind of hardware did he have to solve 10 characters in 11 minutes! Thats awesome and is exactly what I need. going to look into this as well now!
You can't do it in that short time, as you don't have the public key.
1 year ago, user PawGo calculated exactly your case (10 missing WIF characters) but with the public key in less than 11 minutes.
Not bad, no? 10 missing WIF characters - Less than 11 minutes on old CPU. GPU performance - to be seen.
That's fantastic. I'll have to go back to check Pollard's kangaroo algorithm again. 10 missing WIF characters - Less than 11 minutes on old CPU. GPU performance - to be seen.Jump to: