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Author Topic: if I lose password for wallet.dat how can I get the bitcoin in the wallet  (Read 56 times)
myapple
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December 27, 2017, 03:24:48 PM
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I know the bitcoin address
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Variogam
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December 27, 2017, 04:21:01 PM
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You have to find the password for encrypted wallet, there is no other way to spend Bitcoin from encrypted wallet.

But maybe you started without encryption (thus no password required) and have backup of this wallet.dat as well, then it could cointain Bitcoin address you need to spend as the core wallet pre-generates 100 Bitcoin addresses for further usage.
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December 27, 2017, 04:53:40 PM
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this tool can help you https://github.com/gurnec/btcrecover
incase you know at least some characters of your password. I did not try it but it seems you do not have other choices.
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December 27, 2017, 05:49:22 PM
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thanks
What is the possibility for get back the password if I have no idea for the password
Just the possibility
hopeAo
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December 27, 2017, 06:28:12 PM
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I know the bitcoin address

Read through this link i think it should help

http://www.gobitgo.com/articles/1005/How-To-Recover-Your-Bitcoin-Wallet-Password/

https://uwsoftware.be/index.php/bitcoin-recovery-service/

https://blog.btc.com/how-to-recover-bitcoin-cash-from-other-wallets-fbc847026ab6

https://multibit.org/help/hd0.3/restore-wallet.html
bob123
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December 27, 2017, 07:19:57 PM
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What is the possibility for get back the password if I have no idea for the password
Just the possibility

Well.. this depends on the amount of time you are willing to invest to crack your password.

The time is basically depending on 2 factors:
  • Amount of passwords to check (which itself depends on 1) password length and 2) the set of characters used)
  • The amount of combinations your machine is able to test

For example:
If you were using 0-9, a-z and A-Z.. thats 10+26+26(=62) different characters.
If you only remember that your password was between 6 and 8 chars that would result in
62^6 + 62^7 + 62^8 (=221.918.520.000.000) possible combinations you would have to try.
On average you have to serach 1/2 of the search space to find your password (50% chance after 50% being tested).
Thats still quite tough.

The more you remember from your password, the easier it is to reconstruct it.
I'd say anything above 8 characters is not possible to crack in an appropiate amount of time (currently).


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