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Author Topic: I have my wallet.dat from a backup but I can't remember my passphrase  (Read 888 times)
moztec
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January 19, 2018, 09:19:11 PM
 #1

I'm sure I didn't enter a long complex password. Maybe maximum 15 chars long and that's a real maximum, probably shorter.
But I have no idea what the password would be. But I don't think i used anything other than 0-9, A-Z, a-z, and maybe something like an exclamation mark or questionmark... but that will probably be it.

Is there an application that would allow me to brute force this?

I think maybe btcrecover can do this? But is it able to generate all possible combinations for every 15-char long password?
I was unable to find in the manual how to do this.

any help is greatly appreciated!!
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January 19, 2018, 09:32:36 PM
 #2

Yes btcrecover can do it and also you might be able to do it yourself if you have a GPU but it's probably better to get them to do it.

If it's 15 characters or more, your coins are most likely gone. If it's 14 characters or less you have a bit of a chance of getting it back. Obviously the shorter it is, the easier it is to recover and provided it isn't corrupted, you should be able to get your coins back.

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January 20, 2018, 12:51:39 AM
 #3

Can you redefine what you mean by "long complex password"? Roll Eyes Roll Eyes (15 chars, 0-9, A-Z, a-z,exclamation mark or question mark).

you have 15 Space every space Can be filled by (0-9, A-Z, a-z, exclamation mark or question mark )=
10+26+26+1+1=64^15= 1.2 e+27 Prospect. your PC even Core i7 need a long time to do this.



Also, the probability that the file wallet.dat  is not overwritten is few

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January 20, 2018, 12:55:23 AM
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 #4

Yes btcrecover can do it and also you might be able to do it yourself if you have a GPU but it's probably better to get them to do it.

If it's 15 characters or more, your coins are most likely gone. If it's 14 characters or less you have a bit of a chance of getting it back. Obviously the shorter it is, the easier it is to recover and provided it isn't corrupted, you should be able to get your coins back.


I don't think so. I think bitcoin core uses aes256 to encrypt the wallet.dat, which means a 14 character password which is pretty decent (caps on and off, a couple numbers, a couple special characters) as far as I know it cannot be decrypted at any cost, let alone with a GPU.

Realistic bruteforcing at home level would be viable with a really weak password, 14 characters? forget it.

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January 20, 2018, 08:27:55 AM
 #5

With a strong password you inputted I doubt you can brute force your way to remember it, that's why the password you must set although maybe strong but still it needs to be something you can remember easily like having a pattern like when you pronounce some letter or word you can easily recall it in your head. Or you might wanna try writing it in a piece of paper and put in a envelope and keep in somewhere safe where you can find it easily.

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January 20, 2018, 10:24:55 AM
 #6

Yes btcrecover can do it and also you might be able to do it yourself if you have a GPU but it's probably better to get them to do it.

If it's 15 characters or more, your coins are most likely gone. If it's 14 characters or less you have a bit of a chance of getting it back. Obviously the shorter it is, the easier it is to recover and provided it isn't corrupted, you should be able to get your coins back.

Can you tell me what parameters btcrecover needs in order to tell it to, as a first try, try all combinations of passwords up to 8 characters of length?
I'm pretty sure it's a short password.

But I can't find out how to run btcrecover and have it generate all possible combinations. I can feed it a wordlist but that's not  what I need here..
I already tried a custom wordlist with all passwords I can think of
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January 20, 2018, 11:52:26 AM
 #7

Yes btcrecover can do it and also you might be able to do it yourself if you have a GPU but it's probably better to get them to do it.

If it's 15 characters or more, your coins are most likely gone. If it's 14 characters or less you have a bit of a chance of getting it back. Obviously the shorter it is, the easier it is to recover and provided it isn't corrupted, you should be able to get your coins back.

Can you tell me what parameters btcrecover needs in order to tell it to, as a first try, try all combinations of passwords up to 8 characters of length?
I'm pretty sure it's a short password.

But I can't find out how to run btcrecover and have it generate all possible combinations. I can feed it a wordlist but that's not  what I need here..
I already tried a custom wordlist with all passwords I can think of


I haven't used it personally, but I think you put /p for any character you don't know (but check the readme).

So 1 character test would be /p, 2 being /p/p and so on...

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January 20, 2018, 12:49:36 PM
 #8

With a strong password you inputted I doubt you can brute force your way to remember it, that's why the password you must set although maybe strong but still it needs to be something you can remember easily like having a pattern like when you pronounce some letter or word you can easily recall it in your head. Or you might wanna try writing it in a piece of paper and put in a envelope and keep in somewhere safe where you can find it easily.

Writing passwords down defeat the purpose of having a password in my opinion, same goes for writing down seeds for a wallet and so on.

Not that bitcoin is gaining popularity, the very first thing that a theft will do if they find an envelope with some strange combination of words, is going to test it on electrum to see if it's a seed, and they will also test anything that looks like a password on all of your wallet files after they steal your physical harddrive... so yeah, keep it all on your head and hope you don't forget it.

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January 20, 2018, 01:08:57 PM
 #9

Can you provide us the possible combinations for each character, that will allow us to calculate the number of permutations possible, and hence the amount of time it would take to crack the password using BTCrecover and a known amount of computing power.

Alternatively, you can try Dave's wallet recovery service, or one of the other copycat services, but make sure they're reputable. Do not pay upfront.

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January 20, 2018, 01:11:45 PM
 #10

Can you provide us the possible combinations for each character, that will allow us to calculate the number of permutations possible, and hence the amount of time it would take to crack the password using BTCrecover and a known amount of computing power.

Alternatively, you can try Dave's wallet recovery service, or one of the other copycat services, but make sure they're reputable. Do not pay upfront.

I think he's using the btcrecover software itself (not certain though).

Afaik, if he doesn't know the length, he's just going to be testing everything.

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January 20, 2018, 11:34:03 PM
 #11

Maybe try reading the documentation here: https://github.com/gurnec/btcrecover/blob/master/TUTORIAL.md#btcrecover-tutorial

The important bits would be:
Quote
%ia - a “case-insensitive” version of %a: a single lower or uppercase letter
%in - a single digit, lower or uppercase letter
%1,2in - between 1 and 2 characters long of digits, lower or uppercase letters
...
%p - any single ASCII letter, digit, or symbol

This shows the most appropriate wildcards for the OPs request for 8 character password... %ia for lower/uppercase letters, %in for numbers+letters... or %p for numbers+letters+symbols... you can also see how to specify the length using %1,2in etc

So, if you wanted to do a search for all passwords comprising of numbers+letters up to 8 chars: %1,8in
If you wanted to do a searhc for all passwords using numbers+letters AND symbols up to 8 chars: %1,8p

Simply, create a token file with one entry and set btcrecover going.

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January 21, 2018, 04:32:07 PM
 #12

Hi,

I try to make a token.list to use btcrecover.
I put my tokenlist on the right folder (btcrecover where btcrecover.py is) but everytime i open it i have this error message :
btcrecover.py error: argument : --tokenlist or --passwordlist is required or file btcrecover-tokens-auto must be present.

The btcrecover-tokens-auto file i try it too.
I make it this way

#-- my wallet.dat --autosave progress.sav --pause
--tokenlist

124578
124545

Why it doesn't work ?

Thnaks for your help.
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January 21, 2018, 05:37:14 PM
 #13

Hi,

I try to make a token.list to use btcrecover.
I put my tokenlist on the right folder (btcrecover where btcrecover.py is) but everytime i open it i have this error message :
btcrecover.py error: argument : --tokenlist or --passwordlist is required or file btcrecover-tokens-auto must be present.

..

#-- my wallet.dat --autosave progress.sav --pause
--tokenlist

Thats a syntax issue. You have to deliver the name of your tokenlist as a parameter after --tokenlist.


Look here for usage:

For example,  windows:
Code:
C:\python27\python btcrecover.py --wallet wallet.dat --tokenlist tokens.txt [other-options...]

and linux:
Code:
python btcrecover.py --wallet wallet.dat --tokenlist tokens.txt [other-options...]

You'll find more help to syntax/options here: https://github.com/gurnec/btcrecover/blob/master/TUTORIAL.md#running-btcrecover

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January 21, 2018, 06:59:45 PM
 #14

Hi,

I try to make a token.list to use btcrecover.
I put my tokenlist on the right folder (btcrecover where btcrecover.py is) but everytime i open it i have this error message :
btcrecover.py error: argument : --tokenlist or --passwordlist is required or file btcrecover-tokens-auto must be present.

..

#-- my wallet.dat --autosave progress.sav --pause
--tokenlist

Thats a syntax issue. You have to deliver the name of your tokenlist as a parameter after --tokenlist.


Look here for usage:

For example,  windows:
Code:
C:\python27\python btcrecover.py --wallet wallet.dat --tokenlist tokens.txt [other-options...]

and linux:
Code:
python btcrecover.py --wallet wallet.dat --tokenlist tokens.txt [other-options...]

You'll find more help to syntax/options here: https://github.com/gurnec/btcrecover/blob/master/TUTORIAL.md#running-btcrecover


Thanks for your help but i have a new problem : Errno 2 no such file or directory "tokens.txt"

But i create it and i put in the same directory i don't understand.
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January 21, 2018, 07:05:27 PM
 #15

Thanks for your help but i have a new problem : Errno 2 no such file or directory "tokens.txt"

But i create it and i put in the same directory i don't understand.

Are you on windows or linux?
Did you rename 'tokens.txt' into how your file is actually named?
According to the documentation it should work that way. Did you try to use the full path instead of just the name of the file?

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January 21, 2018, 09:09:45 PM
 #16

Thanks for your help but i have a new problem : Errno 2 no such file or directory "tokens.txt"

But i create it and i put in the same directory i don't understand.

Are you on windows or linux?
Did you rename 'tokens.txt' into how your file is actually named?
According to the documentation it should work that way. Did you try to use the full path instead of just the name of the file?

I' am on Windows. I try it. Dam it's complicated. What i have to write on the file ?
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January 22, 2018, 03:29:34 AM
 #17

On the commandline, in the directory where you have btcrecover and where you put your "tokens.txt" file... and where you have been typing your btcrecover command line, try typing:
Code:
dir
and press enter... it will give a list of ALL the files. You will be able to see what the file is ACTUALLY called... I suspect you may have Windows Explorer set to "hide extensions for known file types" (this is a windows default setting) and when you have named your file "tokens.txt", Windows has probably called called it "tokens.txt.txt" Roll Eyes

If you find that it IS called tokens.txt.txt, you might want to set windows to show the file extensions to avoid similar problems in the future: http://kb.winzip.com/kb/entry/26/

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January 22, 2018, 12:39:00 PM
 #18

Doesn't work... I m' crying right now. It's a fucking nightmare.

I have tokens.txt on the right folder and my wallet on the right folder.
It doesn't reconize anything.

I type -- wallet mywallet and --tokenlist tokens.txt
What the fuck is wrong damn it . Why it is not reconize ?

"No such file or directory tokens.txt" I'm dying. Fucking Electrum

Edit : with --passwordlist it's working.
Now with --wallet it's not working. He don't reconize my wallet, i change the name but nothing. I had extension .dat but nothing.
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January 22, 2018, 05:44:06 PM
 #19

Doesn't work... I m' crying right now. It's a fucking nightmare.

I have tokens.txt on the right folder and my wallet on the right folder.
It doesn't reconize anything.

I type -- wallet mywallet and --tokenlist tokens.txt
What the fuck is wrong damn it . Why it is not reconize ?

"No such file or directory tokens.txt" I'm dying. Fucking Electrum

Edit : with --passwordlist it's working.
Now with --wallet it's not working. He don't reconize my wallet, i change the name but nothing. I had extension .dat but nothing.


Are you using the absolute directory path, sometimes if you don't then stuff doesn't work (even if it's in the same folder). Also, uuse speach marks '' to surround the text of the directory/file name.

An absolue directory reference includes the path before it.
E.g
'C:\users\user\appdata\local\bitcoin\wallet.dat' is absolute.

'wallet.dat' - isn't!

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January 22, 2018, 06:12:34 PM
 #20

Doesn't work... I m' crying right now. It's a fucking nightmare.

I have tokens.txt on the right folder and my wallet on the right folder.
It doesn't reconize anything.

I type -- wallet mywallet and --tokenlist tokens.txt
What the fuck is wrong damn it . Why it is not reconize ?

"No such file or directory tokens.txt" I'm dying. Fucking Electrum

Edit : with --passwordlist it's working.
Now with --wallet it's not working. He don't reconize my wallet, i change the name but nothing. I had extension .dat but nothing.


Are you using the absolute directory path, sometimes if you don't then stuff doesn't work (even if it's in the same folder). Also, uuse speach marks '' to surround the text of the directory/file name.

An absolue directory reference includes the path before it.
E.g
'C:\users\user\appdata\local\bitcoin\wallet.dat' is absolute.

'wallet.dat' - isn't!

I don't understand what you say. I put my wallet on btcrecover folder. I type C:\python27\python btcrecover.py --wallet wallet.dat --passwordlist tokens.txt

And always the same error : errno2 no such file or directory "myfuckingwallet"

I can use tokens.txt now, when typing --passwordlist not tokenlist.
But my wallet can't be reconized. ANd when i try to use seedrecover.py it says :
Electrum 2.8+ fully encrypted wallet files cannot be read.. Try to recover from your master extend public key or an adress...

Where can i find the master extend public key ? Maybe this is the solution.
Because btcrecover can't work...
Thanks again Electrum great job.
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January 22, 2018, 07:46:19 PM
Merited by DarkStar_ (1)
 #21

Doesn't work... I m' crying right now. It's a fucking nightmare.

I have tokens.txt on the right folder and my wallet on the right folder.
It doesn't reconize anything.

I type -- wallet mywallet and --tokenlist tokens.txt
What the fuck is wrong damn it . Why it is not reconize ?

"No such file or directory tokens.txt" I'm dying. Fucking Electrum

Edit : with --passwordlist it's working.
Now with --wallet it's not working. He don't reconize my wallet, i change the name but nothing. I had extension .dat but nothing.


Are you using the absolute directory path, sometimes if you don't then stuff doesn't work (even if it's in the same folder). Also, uuse speach marks '' to surround the text of the directory/file name.

An absolue directory reference includes the path before it.
E.g
'C:\users\user\appdata\local\bitcoin\wallet.dat' is absolute.

'wallet.dat' - isn't!

I don't understand what you say. I put my wallet on btcrecover folder. I type C:\python27\python btcrecover.py --wallet wallet.dat --passwordlist tokens.txt

And always the same error : errno2 no such file or directory "myfuckingwallet"

I can use tokens.txt now, when typing --passwordlist not tokenlist.
But my wallet can't be reconized. ANd when i try to use seedrecover.py it says :
Electrum 2.8+ fully encrypted wallet files cannot be read.. Try to recover from your master extend public key or an adress...

Where can i find the master extend public key ? Maybe this is the solution.
Because btcrecover can't work...
Thanks again Electrum great job.

The Master Public Key... errrr, that file or it can be taken out of that file anyway.
Actually, can you load up the file in electrum? If you have a password just on the private keys and not the entire wallet file than it would be possible to pick up your master public key from that, not sure it can be reverse engineered though but maybe that is what gets searched for in the file then.

I mean run these:
Code:
C:\python27\python btcrecover.py --wallet 'wallet.dat' --passwordlist 'tokens.txt'

Code:
C:\python27\python btcrecover.py --wallet 'C:\python27\python\wallet.dat' --passwordlist='C:\python27\python\tokens.txt'

And just check it's not a directory issue. If you're not using the quotation marks, on python scripts, that is often how the issue gets caused.

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January 22, 2018, 10:19:16 PM
 #22

Doesn't work... I m' crying right now. It's a fucking nightmare.

I have tokens.txt on the right folder and my wallet on the right folder.
It doesn't reconize anything.

I type -- wallet mywallet and --tokenlist tokens.txt
What the fuck is wrong damn it . Why it is not reconize ?

"No such file or directory tokens.txt" I'm dying. Fucking Electrum

Edit : with --passwordlist it's working.
Now with --wallet it's not working. He don't reconize my wallet, i change the name but nothing. I had extension .dat but nothing.


Are you using the absolute directory path, sometimes if you don't then stuff doesn't work (even if it's in the same folder). Also, uuse speach marks '' to surround the text of the directory/file name.

An absolue directory reference includes the path before it.
E.g
'C:\users\user\appdata\local\bitcoin\wallet.dat' is absolute.

'wallet.dat' - isn't!

I don't understand what you say. I put my wallet on btcrecover folder. I type C:\python27\python btcrecover.py --wallet wallet.dat --passwordlist tokens.txt

And always the same error : errno2 no such file or directory "myfuckingwallet"

I can use tokens.txt now, when typing --passwordlist not tokenlist.
But my wallet can't be reconized. ANd when i try to use seedrecover.py it says :
Electrum 2.8+ fully encrypted wallet files cannot be read.. Try to recover from your master extend public key or an adress...

Where can i find the master extend public key ? Maybe this is the solution.
Because btcrecover can't work...
Thanks again Electrum great job.

The Master Public Key... errrr, that file or it can be taken out of that file anyway.
Actually, can you load up the file in electrum? If you have a password just on the private keys and not the entire wallet file than it would be possible to pick up your master public key from that, not sure it can be reverse engineered though but maybe that is what gets searched for in the file then.

I mean run these:
Code:
C:\python27\python btcrecover.py --wallet 'wallet.dat' --passwordlist 'tokens.txt'

Code:
C:\python27\python btcrecover.py --wallet 'C:\python27\python\wallet.dat' --passwordlist='C:\python27\python\tokens.txt'

And just check it's not a directory issue. If you're not using the quotation marks, on python scripts, that is often how the issue gets caused.

Thanks, finally it's working adding directory path.
Now it can't find the password with my indications... "Using 4 worket Threads" 13of 13
It's very short... 3 Days i'm on it night and day.
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January 23, 2018, 01:26:35 AM
 #23

You need to use --tokenslist 'C:\python27\python\tokens.txt'

Using --passwordlist will treat the items in tokens.txt as the ACTUAL passwords... It won't generate all the combinations.

In other news... Why do you keep blaming Electrum if you had a wallet.dat? Wallet.dat is from Bitcoin Core, not from Electrum... are you sure this "wallet.dat" was from Electrum? Or are you simply basing that on the output from seedrecovery? Huh

In any case, you can't blame the software because you forgot your password.


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January 23, 2018, 12:01:32 PM
 #24

You need to use --tokenslist 'C:\python27\python\tokens.txt'

Using --passwordlist will treat the items in tokens.txt as the ACTUAL passwords... It won't generate all the combinations.

In other news... Why do you keep blaming Electrum if you had a wallet.dat? Wallet.dat is from Bitcoin Core, not from Electrum... are you sure this "wallet.dat" was from Electrum? Or are you simply basing that on the output from seedrecovery? Huh

In any case, you can't blame the software because you forgot your password.



The extension of a wallet from Electrum is not .dat ? I don't use bitcoincore. I don't forget the password. I' AM SURE.I explain on the other post.
The update of Electrum corrupt my wallet i'm sure of that.

EDIT : now btcrecover refuse to work.. I open it and 1 second later, it close.
When i type C:\Users\Admin>C:\python27\btcrecover-master\btcrecover.py --wallet C:\python27\
btcrecover-master\mywallet --passwordlist=C:\python27\btcrecover-master\tokens.txt

Nothing happens , it get back to C:\users\admin
This is an endless nightmare.
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January 24, 2018, 08:36:22 AM
 #25

No... recent Electrum wallets don't use any file extension (ie v2.x etc). The default wallet is called "default_wallet"... any further wallets are given default names like "wallet_1","wallet_2" etc... if you change the name they will be called whatever name you give without a file extension... ie. "MySuperSecretWallet" etc.

If your old file is called wallet.dat then it is likely from either Bitcoin Core or some other altcoin based on the Qt wallets... (dogecoin core, litecoin core etc)


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January 24, 2018, 01:44:48 PM
 #26

No... recent Electrum wallets don't use any file extension (ie v2.x etc). The default wallet is called "default_wallet"... any further wallets are given default names like "wallet_1","wallet_2" etc... if you change the name they will be called whatever name you give without a file extension... ie. "MySuperSecretWallet" etc.

If your old file is called wallet.dat then it is likely from either Bitcoin Core or some other altcoin based on the Qt wallets... (dogecoin core, litecoin core etc)


My bad, i always thought that electrum wallet was .dat
Just for the record, i succed using btcrecover. But he gives me an error at some point : "memory full "
He can't finish the process. I try with a smaller tokens files, nothing found.

I'am sick. I don't know what to do. There must be a way.

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January 25, 2018, 02:11:30 AM
 #27

My bad, i always thought that electrum wallet was .dat
Just for the record, i succed using btcrecover. But he gives me an error at some point : "memory full "
He can't finish the process. I try with a smaller tokens files, nothing found.

I'am sick. I don't know what to do. There must be a way.

Can you post a screenshot of your btcrecover window when this error occurs.
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January 25, 2018, 12:10:51 PM
 #28

My bad, i always thought that electrum wallet was .dat
Just for the record, i succed using btcrecover. But he gives me an error at some point : "memory full "
He can't finish the process. I try with a smaller tokens files, nothing found.

I'am sick. I don't know what to do. There must be a way.

Can you post a screenshot of your btcrecover window when this error occurs.

Yes i can. I'm actually doing an another try with btcrecover, when it will be finish i will post the screen.
Still looking for a solution at my problem.

There is a way to restore the old password from my wallet ? Can i use an another software for the seed or the wallet ?

EDIT : Btcrecover is stuck after analysing my wallet "wallet difficulty encrypt "
Can't find anything
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January 26, 2018, 04:11:53 AM
 #29

Might I suggest that you attempt to use btcrecover with a KNOWN wallet and password? That way, you can be 100% sure that you have setup btcrecover correctly and that it works the way you expect.

1. Create a new wallet in Electrum... call it "btcrecoverTest"
2. Set password as "abc123"
3. Create a testTokens.txt file containing just one line:
Code:
%3a%3d
NOTE: this testTokens.txt file will generate ALL combinations of 3 letters + 3 numbers

4. run btcrecover using:
Code:
btcrecover.py --wallet btcrecoverTest --tokenlist testTokens.txt --autosave testSave

You should get something like:


As you can see... even a very "weak" password combination of 3 letters + 3 numbers creates over 17.5 MILLION combinations... and will take over 1.5 hours on a Core i5-3570K+8Gigs to test all of them.

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January 26, 2018, 12:21:39 PM
 #30

Might I suggest that you attempt to use btcrecover with a KNOWN wallet and password? That way, you can be 100% sure that you have setup btcrecover correctly and that it works the way you expect.

1. Create a new wallet in Electrum... call it "btcrecoverTest"
2. Set password as "abc123"
3. Create a testTokens.txt file containing just one line:
Code:
%3a%3d
NOTE: this testTokens.txt file will generate ALL combinations of 3 letters + 3 numbers

4. run btcrecover using:
Code:
btcrecover.py --wallet btcrecoverTest --tokenlist testTokens.txt --autosave testSave

You should get something like:


As you can see... even a very "weak" password combination of 3 letters + 3 numbers creates over 17.5 MILLION combinations... and will take over 1.5 hours on a Core i5-3570K+8Gigs to test all of them.

It's working, i have clear all the problem with btcrecover. But it still can't find my password.
My password is a combinaison of letters and numbers. How can i make a token to force btcrecover to try all the combinaison ?
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January 26, 2018, 01:47:12 PM
 #31

If you know the length of the password and are sure it is just letters (upper and lower case) and numbers, use the %in token... Like this:

All combinations of letters/numbers, 8chars:
Code:
%8in

All combinations of letters/numbers, 6-10 chars:
Code:
%6,10in

Be warned that this will generate millions and millions of combinations and will take a looooooong time to brute force.

Knowing the exact length will help... Knowing even a couple of characters will also reduce the possible combinations by a significant amount... Knowing the structure, ie. 2 letters+4numbers+3letters will also enable you to specify a more exact token file and generate less combinations.

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January 26, 2018, 03:33:55 PM
 #32

Thanks for your advice i actually doing it i will know you the result.
Can i do something else to try to recover my wallet ?
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January 26, 2018, 06:27:07 PM
 #33

Honestly, no.

If your seed is restoring a different wallet... And your password isn't working, then your last resort is attempting to bruteforce it.

The use of a seed was meant to help recover from corrupted wallet or forgotten password scenarios, by simply allowing you to completely restore the wallet from just the 12 words.

Unfortunately, it doesn't cover the situation where the seed written down doesn't match the wallet in use Undecided

This is why I always test that a recovery seed works and restores the same addresses before using any wallet

Good luck with finding the password... I'm sure the search time is measured in days! Shocked

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January 26, 2018, 06:59:24 PM
 #34

Honestly, no.

If your seed is restoring a different wallet... And your password isn't working, then your last resort is attempting to bruteforce it.

The use of a seed was meant to help recover from corrupted wallet or forgotten password scenarios, by simply allowing you to completely restore the wallet from just the 12 words.

Unfortunately, it doesn't cover the situation where the seed written down doesn't match the wallet in use Undecided

This is why I always test that a recovery seed works and restores the same addresses before using any wallet

Good luck with finding the password... I'm sure the search time is measured in days! Shocked

I can't loose this wallet... I really can't , i have to find a solution. What about recovery service ?

EDIT : Can't do it . Try it --max-eta 1 hours at least 8,900,000 passwords to try ETA > and the it close.

Can i define btc recover to find just one letter of the password ? Just one, i think it will be enough.
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January 29, 2018, 11:28:21 AM
 #35

Hi mate,

Very sorry to hear about your lost coins.

You're getting some great advice in this thread, and it seems like some smart folks are already helping out.

I'd also be willing to give this a shot. I work in security and cracking passwords is part of my job. I've developed my own tricks, and perhaps one of them will work where the others have not.

I'm new on here, but you can see some of my posts on reddit at http://reddit.com/u/initstring.

I'd only need a hash of your wallet file to work on the password, not the wallet itself. I would ask for a fee if I could recover it.

Let me know if you're interested. If not, keep working hard and following the good advice on this forum.

Either way, best of luck and I hope you get your coins back!
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January 29, 2018, 05:00:26 PM
 #36

Hi mate,

Very sorry to hear about your lost coins.

You're getting some great advice in this thread, and it seems like some smart folks are already helping out.

I'd also be willing to give this a shot. I work in security and cracking passwords is part of my job. I've developed my own tricks, and perhaps one of them will work where the others have not.

I'm new on here, but you can see some of my posts on reddit at http://reddit.com/u/initstring.

I'd only need a hash of your wallet file to work on the password, not the wallet itself. I would ask for a fee if I could recover it.

Let me know if you're interested. If not, keep working hard and following the good advice on this forum.

Either way, best of luck and I hope you get your coins back!

Sorry but i can't trust you. There are lot of recovery service, you are a newbie here...
I know with one hash of my wallet you can hack it and get all my money.

I just need to know how to use btc recover to recover just one letter of my password.
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January 29, 2018, 07:36:26 PM
 #37


Sorry but i can't trust you. There are lot of recovery service, you are a newbie here...
I know with one hash of my wallet you can hack it and get all my money.

I just need to know how to use btc recover to recover just one letter of my password.

No worries, it's important to be careful. If you happen to be in Australia, I would be more than happy to meet in person. I'm in Melbourne.

Otherwise, I wish you the best of luck! Unfortunately, I do not believe you will not be able to recover just a single character of the password (without recovering the full password). That's possible in some situations where the clear-text password is stored in a database, but I'm not aware of any method to do that with this type of encrypted password. That would sort of defeat the purpose of strong encryption.

However, it is interesting that you say a single character might help you remember the password. That leads me to believe it is something based on a real word or sequence of words. If that is the case, you might be better off working to collect robust wordlists and transform rules than simply brute-forcing ever possible character combination. This may give you a better chance of success with limited time and compute resources.

You can search Google for password wordlists and rules, and use tools like hashcat for a different approach. I plan to write a full tutorial on this within the next two months, and I would be happy to share it when it's ready.

Good luck!
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January 29, 2018, 08:14:11 PM
 #38

@ thenarog

If you need more help with btcrecover, or just in general about trying to recover your lost password, I could help you but I think it's wise to get into a chat room where things can be discussed easier and step-by-step instructions (or advice) can be given rather that forum messages with all the delays etc... I always prefer a chat session because it's more interactive.

If you want my help, please send me pm and we'll setup a chat room.

PS: is there any reward for this if I can help you recover your password?
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January 29, 2018, 08:43:29 PM
 #39

I just need to know how to use btc recover to recover just one letter of my password.

Yeah this is not possible.

btcrecover or any method of brute-forcing your password just tries many different passwords, and it can only get a single success or failure result for each.
I repeat: It is impossible to "recover" one character of the password

The opposite direction works though:
If you remember some letters, maybe a couple, maybe even if you're not sure of their positions, it can help you speed up btcrecover a lot.

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January 29, 2018, 09:27:27 PM
 #40

I know with one hash of my wallet you can hack it and get all my money.
Actually, that isn't true. By design, the extract script that btcrecover uses for Electrum only takes a very very small extract that cannot be used to access your wallet unless the person has the entire wallet file. The whole idea is that you can freely give the extract without worrying about loss of funds. The only info that someone would have is your password (assuming they were able to recover it).
Without access to the rest of your wallet file, it is impossible the decrypted header information could ever lead to a loss of funds.


Quote
I just need to know how to use btc recover to recover just one letter of my password.
You can't... It either finds the whole password or nothing at all. The password itself is not stored in the file, it's just used as a key for the encryption algorithm used to encrypt the wallet file and wallet file contents. So, you need the whole password to be able to test if it works.


Your options are basically:
1. Trust a wallet recovery service (give them extract or wallet file), pay fee
2. Brute force the password using btcrecover (or maybe hashcat)
3. Remember your password
4. Find the correct seed for your wallet in your records

If you remember anything at all about the password, you can significantly reduce the number of passwords that btcrecover will generate by creating an appropriate tokens file

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January 30, 2018, 12:20:15 AM
 #41

I know with one hash of my wallet you can hack it and get all my money.
Actually, that isn't true. By design, the extract script that btcrecover uses for Electrum only takes a very very small extract that cannot be used to access your wallet unless the person has the entire wallet file. The whole idea is that you can freely give the extract without worrying about loss of funds. The only info that someone would have is your password (assuming they were able to recover it).
Without access to the rest of your wallet file, it is impossible the decrypted header information could ever lead to a loss of funds.


Quote
I just need to know how to use btc recover to recover just one letter of my password.
You can't... It either finds the whole password or nothing at all. The password itself is not stored in the file, it's just used as a key for the encryption algorithm used to encrypt the wallet file and wallet file contents. So, you need the whole password to be able to test if it works.


Your options are basically:
1. Trust a wallet recovery service (give them extract or wallet file), pay fee
2. Brute force the password using btcrecover (or maybe hashcat)
3. Remember your password
4. Find the correct seed for your wallet in your records

If you remember anything at all about the password, you can significantly reduce the number of passwords that btcrecover will generate by creating an appropriate tokens file


1 : Do you know a trusted wallet recovery service ?
2 : try it doesn't work.  I don't know how to make a good token file with my password and to make btcrecover try my password with some change.
20 chars, i think just one letter or one number is wrong or not is in place.
3 : I know my password. It doesn't work. Something goes wrong when i type it. One letter or one number is different.
4 : The correct seed. I even recover one of my btc adress and i check it i can find it on receiving adress. So this is the correct seed.
I had the same problem on Multibit.


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January 30, 2018, 03:34:15 AM
 #42

1 : Do you know a trusted wallet recovery service ?
None that I have used personally... Dave @ https://walletrecoveryservices.com/ seems to have a good reputation and has been around a while, although the message on their website seems to indicate they're in high demand at the moment.. minimum seems to be 0.3 BTC for them to look at it in a reasonable time.

Quote
2 : try it doesn't work.  I don't know how to make a good token file with my password and to make btcrecover try my password with some change.
20 chars, i think just one letter or one number is wrong or not is in place.
3 : I know my password. It doesn't work. Something goes wrong when i type it. One letter or one number is different.
Well this changes things... seems we all misunderstood what you meant earlier when you asked if it was possible to find just 1 letter! Tongue Roll Eyes

If you think it's just a small typo and one letter wrong... then you probably just want to use a passwordlist and the "typos" section to test for common errors.

Most likely you'd want to use something simple like: "--typos 2 --typos-replace %P"

with a passwordlist.txt that looks like:
Code:
Your20CharPa55word!!

I just tested this on a fully encrypted v3.0.5 wallet... using a 20 char password that is using numbers, lowercase, uppercase and symbols (Y0ur20CharPa55w0rd!!). Using "--typos 2 --typos-replace %P"... it generated 1,789,651 password combinations to test for and gave me an ETA of less than 15 minutes. As, you can see, I purposely put 2 typos in (0's instead of o's)... and it found the correct password.


Obviously, I can't guarantee it will definitely work, but this is definitely worth a try.


Quote
4 : The correct seed. I even recover one of my btc adress and i check it i can find it on receiving adress. So this is the correct seed.
I had the same problem on Multibit.
Wait... I'm confused, so the seed you have is generating the same addresses as were in your old wallet? Huh If that is the case, then your seed seems to be working fine. If it is generating addresses that where in your wallet, and you can check that address on a block explorer and it has a balance, then the only reason I can think of that your wallet is not showing transaction history/balance correctly is because it is not synced correctly.

If you restore the seed, is the dot in the bottom right corner Red, Green or 2 blue arrows? Huh

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January 30, 2018, 12:47:18 PM
 #43

1 / I try to contact Dave but no respond...Very buzy i think.

2 / Thanks for your solution, i will try it today i will let you know. I think it can work like that. I'm sure i can recover my password, it's just a problem of making the password.txt right and put the good infos.

3 / I know that's strange for my seed. I try to swith servers, i try everything and nothing works... And I'm sure about the seed because like i said, i recover one of the btc adress. It's green on the corner everytime.

Thanks again for your help, i hope i will have good news later.
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February 02, 2018, 06:24:45 PM
 #44

Try it with you way, with a new tokens.txt but nothing... Cry Cry
I dont know what to do
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February 04, 2018, 05:01:21 PM
 #45

Try it with you way, with a new tokens.txt but nothing... Cry Cry
I dont know what to do

What exactly are you trying to recover here.
The seed should store your entire wallet shouldn't it? What else are you missing?

If the seed recovers the right addresses, then that  means that any history should alos be accurate and the derivation path is accurate. If there is nothing in the wallet then you have nothing left in that wallet.
Unless you have another wallet file, is there anything else in that folder that follows a name electrum would make (other than one you recently made for your wallet, like wallet_1 or wallet_2 etc...).

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February 06, 2018, 06:54:33 PM
 #46

I would recommend Dave's wallet recovery service, I have had a number of friends who have lost their password, and Dave has managed to crack most of them. Definitely an indispensable service. Currently the rate is 20% of the wallet contents, payable on completion of the task.

https://walletrecoveryservices.com/

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February 07, 2018, 12:44:46 PM
 #47

Try it with you way, with a new tokens.txt but nothing... Cry Cry
I dont know what to do

What exactly are you trying to recover here.
The seed should store your entire wallet shouldn't it? What else are you missing?

If the seed recovers the right addresses, then that  means that any history should alos be accurate and the derivation path is accurate. If there is nothing in the wallet then you have nothing left in that wallet.
Unless you have another wallet file, is there anything else in that folder that follows a name electrum would make (other than one you recently made for your wallet, like wallet_1 or wallet_2 etc...).

I'm trying to recover my password from my wallet and to get again access to my wallet.
The seed restore my wallet, but there is nothing on it (no balance, adresses, nothing)

I try to contact Dave but no answer...I don't know what to do i can't understand what 's wrong.
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February 07, 2018, 12:55:04 PM
 #48

Try it with you way, with a new tokens.txt but nothing... Cry Cry
I dont know what to do

What exactly are you trying to recover here.
The seed should store your entire wallet shouldn't it? What else are you missing?

If the seed recovers the right addresses, then that  means that any history should alos be accurate and the derivation path is accurate. If there is nothing in the wallet then you have nothing left in that wallet.
Unless you have another wallet file, is there anything else in that folder that follows a name electrum would make (other than one you recently made for your wallet, like wallet_1 or wallet_2 etc...).

I'm trying to recover my password from my wallet and to get again access to my wallet.
The seed restore my wallet, but there is nothing on it (no balance, adresses, nothing)

-snip-

If you are using a seed to restore your wallet and it contains no information then I dont understand what the problem is. It's not hiding the address/balances behind a password, the wallet is just empty.
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February 07, 2018, 06:56:23 PM
 #49

I've been PMing the OP... as far as I can tell... he is claiming that the seed will recreate his wallet with the correct addresses, but the wallet balance is 0 and has no history.

However, the seed recovery script from btcrecover cannot match addresses with his seed, so I suspect that the seed the OP has written down, is a "valid" seed, but is NOT the "correct" seed. That is to say, the seed is creating a wallet, it's just not the wallet that the OP was actually using. I've seen this before on these boards, users with the wrong seed...

I've tried to figure out how this actually happens. I suspect it is something to do with Electrum supporting multiple wallet files, and users accidentally opening a different wallet file (for which they don't have the seed written down) which is then automatically opened whenever they re-start Electrum.

User then tries to use their seed and get a different wallet... Undecided


Moral of the story? ALWAYS test your seeds... and ALWAYS write down ANY seed that you are given from ANY wallet. You never know when you're going to screw something up and send coins to the wrong place! Tongue


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February 26, 2018, 12:08:53 PM
 #50

Wallet.dat is from Bitcoin Core, not from Electrum... are you sure this "wallet.dat" was from Electrum? Or are you simply basing that on the output from seed recovery?
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February 26, 2018, 10:29:53 PM
 #51

No passphrase? not good...
i have seen, how you can recover the privat keys out of a wallet.dat, but i assume, that you are lost without your passphrase.  Sad

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February 27, 2018, 12:35:07 AM
 #52

Wallet.dat is from Bitcoin Core, not from Electrum... are you sure this "wallet.dat" was from Electrum? Or are you simply basing that on the output from seed recovery?


Yes i'm sure.
How can i recover the private key from a wallet ?
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February 27, 2018, 07:43:08 AM
 #53

Wallet.dat is from Bitcoin Core, not from Electrum... are you sure this "wallet.dat" was from Electrum? Or are you simply basing that on the output from seed recovery?


Yes i'm sure.
How can i recover the private key from a wallet ?


Follow the instructions in the Link to get you private keys back.

- Install python 2.7 and select "Add python.exe to Path" during installation.
- Download ZIP of this repository. https://github.com/Dwerg/walletaid
- Unzip walletaid.
- Make a copy of wallet.dat and place in walletaid folder.
- Open config.ini and change parameters appropriate to the coin.
- Run "Extract keys.bat"
- Choose whether to dump all keys or search for specific key(s).
- If search is chosen, paste each indivudual address to seach for on a new line and click "OK".
- Open "foundkeys.txt" to see the recovered keys and addresses.

I don’t know the parameters for your specific wallet, but may you find them in the description.

If you are successful I would be thankful: ETH --> 0x7d276e21e5cfb239005a0158b9ebf52c3a266a2d   Grin

For myself it worked perfect with a ZClassic Wallet.
If you have issues, don’t hesitate to ask for support, may I (we) can help.

https://www.reddit.com/r/ZClassic/comments/7vk41c/upvote_to_the_top_solution_for_zclassic_eleos/

Regards

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February 27, 2018, 11:45:36 AM
 #54

Wallet.dat is from Bitcoin Core, not from Electrum... are you sure this "wallet.dat" was from Electrum? Or are you simply basing that on the output from seed recovery?


Yes i'm sure.
How can i recover the private key from a wallet ?


Follow the instructions in the Link to get you private keys back.

- Install python 2.7 and select "Add python.exe to Path" during installation.
- Download ZIP of this repository. https://github.com/Dwerg/walletaid
- Unzip walletaid.
- Make a copy of wallet.dat and place in walletaid folder.
- Open config.ini and change parameters appropriate to the coin.
- Run "Extract keys.bat"
- Choose whether to dump all keys or search for specific key(s).
- If search is chosen, paste each indivudual address to seach for on a new line and click "OK".
- Open "foundkeys.txt" to see the recovered keys and addresses.

I don’t know the parameters for your specific wallet, but may you find them in the description.

If you are successful I would be thankful: ETH --> 0x7d276e21e5cfb239005a0158b9ebf52c3a266a2d   Grin

For myself it worked perfect with a ZClassic Wallet.
If you have issues, don’t hesitate to ask for support, may I (we) can help.

https://www.reddit.com/r/ZClassic/comments/7vk41c/upvote_to_the_top_solution_for_zclassic_eleos/

Regards


Did you read that OP has lost his password? Your method will not work without the password....

«He who works all day,there is no time to make money.» John Rockefeller
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February 27, 2018, 11:48:54 AM
 #55

How many words in the seed? 12?

«He who works all day,there is no time to make money.» John Rockefeller
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February 28, 2018, 04:04:26 PM
 #56

Sorry, you are right.

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February 28, 2018, 04:43:32 PM
 #57

Quote
Wallet.dat is from Bitcoin Core, not from Electrum... are you sure this "wallet.dat" was from Electrum? Or are you simply basing that on the output from seed recovery?

Electrum up to version 1.9 used an Electrum.dat
Electrum Portable used the .dat a bit longer until 1.9.4 or so. ( i am not 100% sure)


@thenarog

depending on which Electrum version you used - you can use "extract-electrum-halfseed.py" (Up to version 1.9.x) or "extract-electrum2-partmpk" (for version 2.0+) from the BTCRecover-Tools.
These tools only extract a part of your seed or MPK, you can give it to other people and they can try to crack it BUT it is not possible to steal your coins with this.

How many BTC are in the wallet? If it is a larger amount and we agree on a reward, I try it on my EC².

Best Regards
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February 28, 2018, 04:50:01 PM
 #58

Quote
Wallet.dat is from Bitcoin Core, not from Electrum... are you sure this "wallet.dat" was from Electrum? Or are you simply basing that on the output from seed recovery?

Electrum up to version 1.9 used an Electrum.dat
Electrum Portable used the .dat a bit longer until 1.9.4 or so. ( i am not 100% sure)


@thenarog

depending on which Electrum version you used - you can use "extract-electrum-halfseed.py" (Up to version 1.9.x) or "extract-electrum2-partmpk" (for version 2.0+) from the BTCRecover-Tools.
These tools only extract a part of your seed or MPK, you can give it to other people and they can try to crack it BUT it is not possible to steal your coins with this.

How many BTC are in the wallet? If it is a larger amount and we agree on a reward, I try it on my EC².

Best Regards

While this user is correct that the output from the scripts cannot be used to steal your coins, providing the file itself can enable users to attempt to figure out your password and recover the BTC themselves.
Long story short - you can provide the output from the scripts but not the file (wallet.dat) and anyone asking for it is surely trying to steal your coins.
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February 28, 2018, 06:19:07 PM
 #59

@Ramulen, your solution doesn't work.

@royse777
12 exactly.

@Near28

I try it. But everytime , when i open btcrecoverseed, it doesn't work.
2.5 btc , a fortune for me. I will give 2000 dollars to the man who will find me the solution.
But i can't take the risk to lost them. For know, they are not lost, but "blocked".

If i trust someone here, and if i give a file, and then he recover my wallet with 0 btc on it, i will be on serious shit.

And i'm sure that the wallet is from Electrum. I can't understand why my password who i wrote and the seed doesn't work.
There was a bug on my HDD when i changed Electrum version.

I can't understand why it's happening...
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February 28, 2018, 08:18:31 PM
 #60

I think we already talked @ Github  Wink

Quote
I try it. But everytime , when i open btcrecoverseed, it doesn't work.

I guess you mean that: extract-electrum-halfseed.py
yep, because "extract-electrum-halfseed.py" and "extract-electrum2-partmpk.py" do not work with encrypted wallets.

Quote
And i'm sure that the wallet is from Electrum. I can't understand why my password who i wrote and the seed doesn't work.
There was a bug on my HDD when i changed Electrum version.

you ever used the password after you have changed it? If yes, and it worked - your Wallet-File is probably Corrupt (somehow) - if not, then you probably made an mistake while creating the new password.

my recommendation:
Start with the "Typos", so you can exclude that you have errors with upper/lower letters, swapt letters, missing letters or double letters. (these are usually the most common mistakes)

EDIT: I just see that HCP has already recommended this to you.

Best Regards

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March 01, 2018, 03:49:03 PM
 #61

I think we already talked @ Github  Wink

Quote
I try it. But everytime , when i open btcrecoverseed, it doesn't work.

I guess you mean that: extract-electrum-halfseed.py
yep, because "extract-electrum-halfseed.py" and "extract-electrum2-partmpk.py" do not work with encrypted wallets.

Quote
And i'm sure that the wallet is from Electrum. I can't understand why my password who i wrote and the seed doesn't work.
There was a bug on my HDD when i changed Electrum version.

you ever used the password after you have changed it? If yes, and it worked - your Wallet-File is probably Corrupt (somehow) - if not, then you probably made an mistake while creating the new password.

my recommendation:
Start with the "Typos", so you can exclude that you have errors with upper/lower letters, swapt letters, missing letters or double letters. (these are usually the most common mistakes)

EDIT: I just see that HCP has already recommended this to you.

Best Regards



Yes we talk about it on github ! Wink

You ask the right question. I think but i'm not sure,  the new password worked on electrum 3.04. Then i installed 3.05 and few days later , when i try to open my wallet with the same password, it doesn't work.

There is two explanations for my problem :
- Like you said, the wallet is corrupted. I don't know what to think...Can i know for sure if my wallet is corrupted? Can i analyze the file and see if they are some errors ? I'm sure they was a problem with my hdd.
I can't restore old version of this wallet. And for my other wallet, i can, why ?
 
- Or like you said my password is wrong. I made an error when typing it. But i check my keyboard and i was very careful when changing my password.
I copy / paste it on notepad file to not make mistakes.

Now until the end of a week, i making new passwordlist.txt with multiple combinaisons and i will try it on btcrecover.
On Monday, i will tell here if i succeed.

Thanks for all of you guys, to helping me. I can't loose this money so i will try anything to recover it. If i can i will sell my wallet to anyone who can deal with this problem...

Thanks again, i hope i had good news monday. If you have any suggestions, contact me. 



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March 01, 2018, 03:55:28 PM
 #62

Good luck - this user and I spoke in Private Messages about how to construct the password list with variable/wildcard characters.

Hopefully you return with good news. If you want help creating your passwordlist we may be able to provide feedback on that as well.
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March 01, 2018, 04:35:53 PM
 #63

I wish you good luck, too

Quote
the new password worked on electrum 3.04. Then i installed 3.05 and few days later , when i try to open my wallet with the same password, it doesn't work.
hm.. Can you still see your download-history? Are you sure you downloaded Electrum 3.05 from the Original electrum.org website?
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March 02, 2018, 04:09:37 PM
 #64

I don't think you are going to be able to recover your passphrase using brute force as 15 characters is a big dataset to try. The only way you can recover is if you somehow remember your passphrase otherwise I don't think its possible.

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March 05, 2018, 09:45:11 AM
 #65

Quote
Can i analyze the file and see if they are some errors ? I'm sure they was a problem with my hdd.

As far as I know, there is no possibility - at least in your case, because your wallet is encrypted.
Normally, Electrum does not open "Corrupt Wallet-files". But I do not know how Electrum deals with (Corrupt) fully encrypted wallets.

Long Story short, if the file is Corrupt nobody will ever be able to crack it.

just in case you missed it:
Can you still see your download-history? Are you sure you downloaded Electrum 3.05 from the Original electrum.org website?


Quote
.... If i can i will sell my wallet to anyone who can deal with this problem...
before you do that write me a PN, I would like to have a look at it and give it a try in the Cloud.

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March 05, 2018, 04:39:25 PM
 #66

Hi guys,

I try it all this days... I made 10 passwordlist and nothing...
I'm dying. I don't know what to do next. I found someone to buy my wallet for 2 btc... I don't know if i can accept.

For the question : Yes i download it from here, from the link of official Electrum. The post who said there is a vulnerability on Electrum.

I still thinking that my wallet is corrupted. The file seems damage. Like i said i always had a possibility to restore an old version of my wallet.
Here I can't or maybe there is a way to restore the old file with the previous password ?
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March 05, 2018, 04:56:53 PM
 #67

Quote
I found someone to buy my wallet for 2 btc... I don't know if i can accept.
You have 2.5 BTC in it, right? I would sell immediately (2 BTC for a fully encrypted broken wallet - where he does not even see if there really is something on it)  Grin
Do not get me wrong - a password protected wallet is worth 0$. You can be happy if someone gives you 100 bucks

Quote
For the question : Yes i download it from here, from the link of official Electrum. The post who said there is a vulnerability on Electrum.

then I would say it is definitely broken.


Quote
Here I can't or maybe there is a way to restore the old file with the previous password ?

Only with the seed... Unfortunately, there is no other possibility.
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March 05, 2018, 04:58:28 PM
 #68

I agree with the user above - take the 2 BTC for it.

If you need assistance with your passwordlists you can always reach out. Good luck in the future!
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March 06, 2018, 01:12:58 AM
 #69

I still thinking that my wallet is corrupted. The file seems damage. Like i said i always had a possibility to restore an old version of my wallet.
What do you mean you "always had a possibility to restore an old version" of the wallet? Huh Do you mean you were able to restore old versions of wallets when you were using a different wallet application? (like Bitcoin Core etc)


Quote
Here I can't or maybe there is a way to restore the old file with the previous password ?
It's pretty simple... you either have a backup of the old file with the previous password... or you don't. Do you have a copy of that file stored someone like on a usb drive or other backup media? If not, then there is no way for you to magically restore this file

I'm still confused by a comment you made earlier where you said:
3 / I know that's strange for my seed. I try to swith servers, i try everything and nothing works... And I'm sure about the seed because like i said, i recover one of the btc adress. It's green on the corner everytime.
If your seed was recreating a wallet that has the same address that you previously had... then there is something else that isn't working right.


Quote
I found someone to buy my wallet for 2 btc... I don't know if i can accept.
If the amount that is in your wallet is even close to 2 BTC... sell it! why is this even a question? Tongue And if you do sell, just remember to use an Escrow service!

I'm guessing your wallets has more than 2 BTC in it?

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March 06, 2018, 04:18:43 PM
 #70

I still thinking that my wallet is corrupted. The file seems damage. Like i said i always had a possibility to restore an old version of my wallet.
What do you mean you "always had a possibility to restore an old version" of the wallet? Huh Do you mean you were able to restore old versions of wallets when you were using a different wallet application? (like Bitcoin Core etc)


Quote
Here I can't or maybe there is a way to restore the old file with the previous password ?
It's pretty simple... you either have a backup of the old file with the previous password... or you don't. Do you have a copy of that file stored someone like on a usb drive or other backup media? If not, then there is no way for you to magically restore this file

I'm still confused by a comment you made earlier where you said:
3 / I know that's strange for my seed. I try to swith servers, i try everything and nothing works... And I'm sure about the seed because like i said, i recover one of the btc adress. It's green on the corner everytime.
If your seed was recreating a wallet that has the same address that you previously had... then there is something else that isn't working right.


Quote
I found someone to buy my wallet for 2 btc... I don't know if i can accept.
If the amount that is in your wallet is even close to 2 BTC... sell it! why is this even a question? Tongue And if you do sell, just remember to use an Escrow service!

I'm guessing your wallets has more than 2 BTC in it?


1 / In Windows , i can restore old version of the file : "properties , previous version" for all my wallet except this one.

2 / No it was my mistake. I write the password and the seed everywhere but i don't think to make a wallet copy.

3 / No my seed WORKS. I recover a wallet with no balance, no adress. NOTHING ON IT.

4 /  2.5 btc on it. But i can forget selling it. The buyer ask me to send it first with no escrow...

So now, i wanna just know who is fault ? Mine, the software , my hard drive ? Becasue i wrote the password, i wrote the seed who recover an empty wallet...
I will never use Electrum again.

@ncsupanda I'm ready to accept your help, maybe you will able to make better passwordlist that i do.

I hope in future someone will find a way to crack electrum wallet...I keep it , hoping that it will be true one day.

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March 06, 2018, 04:38:06 PM
 #71

Quote
4 /  2.5 btc on it. But i can forget selling it. The buyer ask me to send it first with no escrow...

That was expectable...  Undecided

Quote
3 / No my seed WORKS. I recover a wallet with no balance, no adress. NOTHING ON IT.

did you try seed recovery with BTCRecover?

Quote
So now, i wanna just know who is fault ? Mine, the software , my hard drive ? Becasue i wrote the password, i wrote the seed who recover an empty wallet...
I will never use Electrum again.

I am convinced that you have written the wrong seed. You could try to swap individual words, For example you read "House" but you write "Mouse" because it sounds similar - i know, is a daring theory  Grin

Quote
I hope in future someone will find a way to crack electrum wallet...I keep it , hoping that it will be true one day.

unfortunately that will not happen, Brut-Force will be the only way. Yesterday, I also remembered something, If the wallet file is damaged nobody will ever be able to crack it - Theoretically, even if someone manage to crack the Wallet, the decrypted data would not match the original data. You can only crack it if something has gone wrong when creating the password (during the encryption process). If the wallet was damaged after the encryption process probably nothing will help.







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March 06, 2018, 05:11:52 PM
 #72

How come the seed did not restore the wallet? did you copy the right seed down?
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March 07, 2018, 02:12:46 AM
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 #73

Ok... I just want to be very clear on this... because your answers are a little confusing... Undecided

When you recover the wallet using the seed you have written down, it is generating different addresses to ones you previously had? I don't care about balance or transaction history... I only want to know if you have the same or different addresses, because you've said:
4 : The correct seed. I even recover one of my btc adress and i check it i can find it on receiving adress. So this is the correct seed.
3 / I know that's strange for my seed. I try to swith servers, i try everything and nothing works... And I'm sure about the seed because like i said, i recover one of the btc adress. It's green on the corner everytime.

So you have said that you have "recovered an address" using the seed... but now you say that the wallet you are recovering contains "no adress[sic]"??!? Huh
3 / No my seed WORKS. I recover a wallet with no balance, no adress. NOTHING ON IT.

Huh

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March 20, 2018, 11:38:08 AM
 #74

Sorry for the late answer...

I try seed recover with BTC. Nothing works.
With my actualy seed, i recover a wallet. But on this wallet, there is nothing on it. No balance, no adress.

I did'nt know what to do next. So i hire Dave recovery service. Now i wait for the result.
This situation is very difficult for me, so i'm trying not to think for now. Like i said, i hope that one day, someone will find a easy and a sure way to break a electrum wallet.
I tried many options and i m' very exhausted. I don't know what to do next.
I know that maybe there is a way with the master key or something like that, but i don't know how to do it.
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March 20, 2018, 04:51:32 PM
 #75

With my actualy seed, i recover a wallet. But on this wallet, there is nothing on it. No balance, no adress.

4 : The correct seed. I even recover one of my btc adress and i check it i can find it on receiving adress. So this is the correct seed.


Could you please explain your situation clearly?



i hope that one day, someone will find a easy and a sure way to break a electrum wallet.

This will never be the case.
This problem is not related to electrum.



I tried many options and i m' very exhausted. I don't know what to do next.

You might start with answering questions you were asked earlier..
Maybe start with HCP's questions?

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March 21, 2018, 02:43:39 AM
 #76

I try seed recover with BTC. Nothing works.
With my actualy seed, i recover a wallet. But on this wallet, there is nothing on it. No balance, no adress.
Again... I am not understanding this correctly. You previously said you were 100% sure of the seed because it recovered an address:
4 : The correct seed. I even recover one of my btc adress and i check it i can find it on receiving adress. So this is the correct seed.
So, please answer this question... A simple yes or no...

Does Electrum actually regenerate one (or more) of your old BTC addresses when your restore your wallet using your seed? Huh

This is VERY important... Without knowing the answer to this question, we cannot more forward in the troubleshooting process.

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March 21, 2018, 12:11:30 PM
 #77

Someone here told me to restore a wallet with my seed and i did. Then, to try to recover some btc adress used and i did find two of them.
When i say no balance , no adress, i mean no balance and no History of transactions.

But when i go to "adress", i find two btc adress who i used to move funds.

So we can tell that Electrum restore 2 of my old btc adress , with my seeds.

I hope i'm more clear now. Do i have to stop asking Dave Recovery service ?
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March 21, 2018, 04:52:49 PM
 #78

Someone here told me to restore a wallet with my seed and i did.

Thats right. This is the correct way of generating all of your old private-/public keypairs



When i say no balance , no adress, i mean no balance and no History of transactions.

An address is not the same as the history of transactions from your wallet client.
Those are stored in the wallet file. Those won't be displayed after recovering from a seed.



But when i go to "adress", i find two btc adress who i used to move funds.
So we can tell that Electrum restore 2 of my old btc adress , with my seeds.

Then, obviously, your seed is correct. It should generate all of your addresses used.



I hope i'm more clear now. Do i have to stop asking Dave Recovery service ?

There is no sense in asking anyone to recover this since there is nothing to recover.
Your wallet/seed recovery works without a problem.

Is it possible that you have imported a private key sometime in the past?
Those are not included in the seed.

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March 22, 2018, 12:29:23 AM
 #79

What the hell! How could you be so careless? These bitcoins holds your entire income and profits!
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March 22, 2018, 03:15:40 AM
 #80

I am a newbie so i cant tell you anything about it I am sorry
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March 22, 2018, 05:09:08 AM
 #81

I am not sure and clarified of the parameters of the btcecover and moreover as far as i know over 15 characters password is unable to get hacked
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March 22, 2018, 05:26:33 AM
 #82

Someone here told me to restore a wallet with my seed and i did. Then, to try to recover some btc adress used and i did find two of them.
When i say no balance , no adress, i mean no balance and no History of transactions.

But when i go to "adress", i find two btc adress who i used to move funds.

So we can tell that Electrum restore 2 of my old btc adress , with my seeds.

I hope i'm more clear now. Do i have to stop asking Dave Recovery service ?
Yes, thank you... that answers what I wanted to know...

Unfortunately, it raises even more questions. It really shouldn't be possible for Electrum to have two addresses that you've used before, and show no transaction history, especially if it is properly synced ("green dot).

I have sent you a PM regarding this.

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March 22, 2018, 01:45:15 PM
 #83

Is it possible that you have imported a private key sometime in the past?
Those are not included in the seed.
[/quote]

I have a csv file with private keys. Can i use it ?

Everyone, i told again and again : i'm sure about my seed and my password. When i use my seed, i recover a wallet with nothing on it, but there is two btc adress who i used in "adress".

And i had the same problem on multibit. I recovered my wallet but there was nothing on it.
Here is the same. I recover my wallet but there is nothing on it.

So , my old wallet won't work with my actual password and when i recover it, there is nothing on it.
I hope i m clear.

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March 22, 2018, 02:21:06 PM
 #84

Ok, is this a multibit seed?

If yes proceed as follows:

1. Electrum Creat/Restore
2. I allready have a seed
3. Enter your Seed, Click Option, BIP39 Seed, Click Next
4. Change Derivation Path from  ( m/44'/0'/0')  to ( m/0' ) Click Next
5. Set Password and Restore Wallet

Now you History, Balance etc. should be displayed correctly.

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March 22, 2018, 03:58:38 PM
 #85

I have a csv file with private keys. Can i use it ?

You can import/sweep all of your private keys into electrum.
Look here for a short guide on how to import your private keys: https://bitcoinelectrum.com/importing-your-private-keys-into-electrum/



Everyone, i told again and again : i'm sure about my seed and my password. When i use my seed, i recover a wallet with nothing on it, but there is two btc adress who i used in "adress".
And i had the same problem on multibit. I recovered my wallet but there was nothing on it.
Here is the same. I recover my wallet but there is nothing on it.
So , my old wallet won't work with my actual password and when i recover it, there is nothing on it.
I hope i m clear.

If you are sure about your seed and it already generated addresses which you have used, then its the correct seed.
The problem is mostly caused by you. You should start answering all questions.. Did you import a private key at any moment into your ('lost') wallet?





Ok, is this a multibit seed?

Yes.. it probably is a multibit seed... thanks for your input.
Maybe read the thread first before posting nonsense:


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March 22, 2018, 04:40:43 PM
 #86

Quote
Yes.. it probably is a multibit seed... thanks for your input.
Maybe read the thread first before posting nonsense:
I know the thread very well. I've already talked to him on Github before this thread here.

And yes, I know that it contradicts his statements but his statements are sometimes extremely strange and / or hard to understand (at least for me).
I only suggested it to him because he mentioned multibit now and his story fits in this case, if you restore a BIP39 Seed on electrum and set the wrong Derivation Path you get exactly what he said, No Balanca, No History etc..

The chance is slim but it is a chance. stay relaxed Grin









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March 22, 2018, 05:29:15 PM
 #87

I know the thread very well. I've already talked to him on Github before this thread here.
And yes, I know that it contradicts his statements but his statements are sometimes extremely strange and / or hard to understand (at least for me).

You are right, there were quite some contradictions made by OP. I also had a hard time following this.  
I did not intend to sound harsh. I apologize for that.



I only suggested it to him because he mentioned multibit now and his story fits in this case, if you restore a BIP39 Seed on electrum and set the wrong Derivation Path you get exactly what he said, No Balanca, No History etc..

I don't think his statements fit into this scenario.
OP mentioned his seed recovers 2 addresses which were inside his old wallet. Therefore the seed and the derivation path are set correctly.
The only guess i have at the moment is that he has imported (a) private key(s). Or he may have used addresses beyond the curreng gap limit.



@OP:
Did you try to generate a bunch of new receiving- (and change-) addresses?
Type this into the console of electrum:
Code:
for i in range(0, 100): print wallet.create_new_address(False)
and
Code:
for i in range(0, 100): print wallet.create_new_address(True)

You may in-/decrease the amount (100) as you wish.

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March 23, 2018, 10:01:57 PM
 #88

Ok guys you have to read what i wrote, because i'm repeating the same thing again and again... And my english is bad i know it Sad

First, this is ELECTRUM SEED for sure.
Second, Yes i had the same problem on MULTIBIT. I recover a wallet with the correct seed. But the wallet was empty.
I have resolved this problem by finding an old version of my wallet file.
I can't do it for my electrum problem because i dont have an other old copy of the wallet.

Did you import a private key at any moment into your ('lost') wallet?

Yes i have a CSV file of key call electrum_private_keys. When i try to create a new wallet, using the option "importing bitcoin adress", it doesn't work, when i use my file, or when i copy , paste one or several adresses of the file.

The Button "Next" stay gray and i click on it.

Can i use my file to get something on it ? What can i do ?
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March 23, 2018, 11:01:55 PM
 #89

Yes i have a CSV file of key call electrum_private_keys. When i try to create a new wallet, using the option "importing bitcoin adress", it doesn't work, when i use my file, or when i copy , paste one or several adresses of the file.

The Button "Next" stay gray and i click on it.
You can't load a CSV file into Electrum... you need to copy/paste either the Bitcoin Addresses (this will generate a watching-only wallet that will NOT let your spend any coins, you can only see them!)... or you copy/paste the private keys which MUST be in "WIF" format... they should start with a "5", a "K" or an "L" and look something like this:
Code:
5J1PVfTB7udG52KQVH5KkdFoTWRhcT6vcQeN7k3b9mcbWhZAiBm
KxA9rVXFky6tJFEVavzqr1jcFq1eePCk2zT3wd8ZgvAUyT998SzD
L1ChtponePMfDRpcBZsF4amXPWZ3cYu48hmkTMaLvzv8gYAp9KQN


When importing the private keys, you must put ONE private key (or address) per line... and NOTHING ELSE, like this:



no other symbols or text, no quote marks or ","s or anything like that, if you do, the "next" button will be disabled:

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March 24, 2018, 09:33:16 AM
 #90

Ok guys you have to read what i wrote, because i'm repeating the same thing again and again...

You have to admit that you seem to
1) not understanding our questions and not answering them properly
2) tell contradictory stories/information
3) be unable to read yourself





Yes i have a CSV file of key call electrum_private_keys. When i try to create a new wallet, using the option "importing bitcoin adress", it doesn't work, when i use my file, or when i copy , paste one or several adresses of the file.

The Button "Next" stay gray and i click on it.

Can i use my file to get something on it ? What can i do ?

You should maybe start reading the thread. You question has already been answered the first time:

I have a csv file with private keys. Can i use it ?
You can import/sweep all of your private keys into electrum.
Look here for a short guide on how to import your private keys: https://bitcoinelectrum.com/importing-your-private-keys-into-electrum/





It seems like you are either a bit confused on how to click on a link and read the small guide for about 3 minutes
or you simply don't understand anything at all. In this case please clarify what EXACTLY you don't understand and/or doesn't work.

We try to make it as easy as possible. Even monkeys could understand this if they were giving concrete information about whats going wrong.




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March 25, 2018, 05:05:31 PM
 #91

To recall your code phrase, it is recommended to write it on a separate piece of paper and put it in a distant place of the room away from the computer.

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March 26, 2018, 01:38:23 PM
 #92

I'm sure I didn't enter a long complex password. Maybe maximum 15 chars long and that's a real maximum, probably shorter.
But I have no idea what the password would be. But I don't think i used anything other than 0-9, A-Z, a-z, and maybe something like an exclamation mark or questionmark... but that will probably be it.

Is there an application that would allow me to brute force this?

I think maybe btcrecover can do this? But is it able to generate all possible combinations for every 15-char long password?
I was unable to find in the manual how to do this.

any help is greatly appreciated!!

With such complex password, I doubt if you will be able to regain access to your coins. That's why it's advisable as simple as possible to ease remembrance.
However, I'd suggest you try btcrecover. You may be lucky enough to regain access if the password is not more than 15 characters.

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March 28, 2018, 12:39:13 PM
 #93

Ok guys you have to read what i wrote, because i'm repeating the same thing again and again...

You have to admit that you seem to
1) not understanding our questions and not answering them properly
2) tell contradictory stories/information
3) be unable to read yourself





Yes i have a CSV file of key call electrum_private_keys. When i try to create a new wallet, using the option "importing bitcoin adress", it doesn't work, when i use my file, or when i copy , paste one or several adresses of the file.

The Button "Next" stay gray and i click on it.

Can i use my file to get something on it ? What can i do ?

You should maybe start reading the thread. You question has already been answered the first time:

I have a csv file with private keys. Can i use it ?
You can import/sweep all of your private keys into electrum.
Look here for a short guide on how to import your private keys: https://bitcoinelectrum.com/importing-your-private-keys-into-electrum/





It seems like you are either a bit confused on how to click on a link and read the small guide for about 3 minutes
or you simply don't understand anything at all. In this case please clarify what EXACTLY you don't understand and/or doesn't work.

We try to make it as easy as possible. Even monkeys could understand this if they were giving concrete information about whats going wrong.





First calm your self.
Second, i answered all the questions and multiple times. If you have any other question, ask here.
There is no contradictory stories at all.

I told you many times what's going on. Do i have to repeat my self again and again ? Which part you don't understand ?
You think this i a good way to help me ?

And yes i wrote the seed and the password on the paper and yes i used btcrecover many times.

Now i'm trying to restore the wallet with private keys and it works but @HCP

It restore a wallet with no balance on it, but there is transactions history. I only used 2 btc adress from the list.
What's the next moove ?
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March 28, 2018, 04:11:45 PM
 #94

Quote
It restore a wallet with no balance on it, but there is transactions history. I only used 2 btc adress from the list.
What's the next moove ?

Import the other addresses until you find the right ones with your BTC.

Congratulations  Smiley
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March 29, 2018, 12:58:15 AM
 #95

Now i'm trying to restore the wallet with private keys and it works but @HCP

It restore a wallet with no balance on it, but there is transactions history. I only used 2 btc adress from the list.
What's the next moove ?
Where did you get that list of private keys from? It sounds like you've probably got the private keys for your "receive" addresses, but don't have the private keys for your "change" addresses.

The scenario would be:

- You receive coins to "receive" addresses
- You send coins to someone... change from the outgoing transaction(s) goes to new "change" addresses
- Your "receive" addresses are now EMPTY

So, when you restore your "receive" address private keys, it shows the incoming and outgoing transactions, but the balance is zero, as the coins are now on "change" address(es).


Anyway, if this list of private keys that you have is just a list that you manually exported from Electrum, I'd guess that you didn't export the private keys for the "change" addresses (possibly exported the list before the "change" address was generated). However, if your seed is restoring the same "receive" addresses as are being generated when you import the private keys manually... chances are pretty good that you can also restore the required change addresses.

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April 05, 2018, 02:40:36 AM
 #96

I do not think for a password your wallet can forget it and cannot remember it.
Creating a password does need a strong password, but it would be nice to make it easy for you to remember.
It could also be by writing it on paper and storing it in a safe place. so if forgot to see in the paper earlier.
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April 10, 2018, 11:40:52 AM
 #97

I do not think for a password your wallet can forget it and cannot remember it.
Creating a password does need a strong password, but it would be nice to make it easy for you to remember.
It could also be by writing it on paper and storing it in a safe place. so if forgot to see in the paper earlier.

I answer that many times. I wrote down the password on the paper and on the pc.
It's not the problem.

All this days, i try to export private keys from the file and nothing... I put all the adress (more of 50), i have some transations (a lot) but no balance.
I don't export the file manually. I think there is an option on electrum to export private key on csv.file, that's how i do it.

I don't know how to do now, and no answer from dave recovery wallet...
@HCP
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April 11, 2018, 07:23:50 AM
 #98

All this days, i try to export private keys from the file and nothing... I put all the adress (more of 50), i have some transations (a lot) but no balance.
I don't export the file manually. I think there is an option on electrum to export private key on csv.file, that's how i do it.

I don't know how to do now, and no answer from dave recovery wallet...
@HCP
I've sent you a private message regarding this... If possible I'd like your "xpub" so I can have a look at the addresses and transaction history (without having access to the private keys), so I can try and figure out where exactly your coins are and what you'll need to do to recover them.

NOTE: I would recommend that you do NOT post your xpub in this thread as, while it does not affect the security of your wallet (ie. no-one will have access to private keys), it can reduce your privacy as anyone with xpub could see ALL your addresses/transaction history/balance etc

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April 16, 2018, 10:46:41 PM
 #99

 The default wallet is called "default_wallet"... any further wallets are given default names like "wallet_1","wallet_2" etc... if you change the name they will be called whatever name you give without a file extension... ie. "MySuperSecretWallet" etc.

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April 18, 2018, 02:29:52 PM
 #100

The default wallet is called "default_wallet"... any further wallets are given default names like "wallet_1","wallet_2" etc... if you change the name they will be called whatever name you give without a file extension... ie. "MySuperSecretWallet" etc.

I don't understand what you mean...
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April 19, 2018, 08:14:00 AM
 #101

I don't understand what you mean...
He is saying that you can have multiple wallet files in Electrum...

The "default" wallet name is called "default_wallet"... when you attempt to create new wallets it will call it will first suggest the name "default_wallet", if that already exists it will try "wallet_1", then "wallet_2" etc. However, if you choose a custom name like "MySuperSecretWallet" then that is what the file will be called. As Electrum does NOT use a file extension (like .dat) the wallet files are called named whatever you use for a wallet name.

Note that this has pretty much no relevance to your issue whatsoever and I have no idea why the guy posted it. Huh

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April 22, 2018, 01:15:43 PM
 #102

I don't understand what you mean...
He is saying that you can have multiple wallet files in Electrum...

The "default" wallet name is called "default_wallet"... when you attempt to create new wallets it will call it will first suggest the name "default_wallet", if that already exists it will try "wallet_1", then "wallet_2" etc. However, if you choose a custom name like "MySuperSecretWallet" then that is what the file will be called. As Electrum does NOT use a file extension (like .dat) the wallet files are called named whatever you use for a wallet name.

Note that this has pretty much no relevance to your issue whatsoever and I have no idea why the guy posted it. Huh

I check all the wallet file... Nothing...
I think i can kill myself now.
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April 23, 2018, 04:48:26 AM
 #103

In summary...

- You have an Electrum wallet file that apparently you can't unlock
- You have a CSV file of private keys that appears to recover a tiny fraction of your BTC
- You have a seed which appears to recover some of your addresses, but doesn't show balance and/or transactions

There are several possibilities:
a. Your wallet file got corrupted
b. You typed the wrong password in when setting it (capslock, fast typing etc)
c. Your CSV backup was exported before the keys currently holding the bulk of your BTC were generated
d. You have literally hundreds (thousands) of addresses (mining? fauceting?) and when you restore, the keys holding the bulk of your BTC are out past the gap limit and Electrum is simply not generating them
e. You have the wrong seed
f. You set a BIP39 "passphrase" (ie. added "extra word" in Electrum) when creating the wallet seed

- a. and possibly b. explain why you can't unlock your original wallet file.
- As you claim you ARE seeing previous addresses when restoring from seed, I'd guess that e. & f. are not the cause of your problem.
- c. and d. seem to fit the situation you have where you are now seeing SOME of your BTC and addresses, but not all of them.

You could try getting Electrum to generate thousands of receive and change addresses from the seed that you have and see if any history and/or balance shows up... the critical part is that you MUST see addresses/keys generated that are also shown in the CSV export for you to have any chance of success.

If the addresses/keys generated from seed DO NOT match addresses/keys in your CSV export file, then your seed is WRONG

To try and generate a thousand "receive" and "change" addresses:
- Restore from seed
- If it isn't already enabled, enable the console ("View -> Show Console")
- Run this command:
Code:
for x in range(0, 1000): print(wallet.create_new_address(False))
- Run this command:
Code:
for x in range(0, 1000): print(wallet.create_new_address(True))

NOTE:
- These commands are for Electrum v3+, they may not work on Electrum v2
- These commands will likely take a LONG time to complete. There is also a chance that it will make Electrum run slow. Increase (or decrease) the 1000 value to generate more (or less) addresses as you wish.

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