<p>You can wrap a brute-force wrapper around any of the <a href="https://bitcoin.stackexchange.com/q/3034/78">answers here</a>. Just write some loops that iterate on all possible passwords, and call one of the functions in the linked question to try and decrypt you wallet.</p>

<p><a href="https://bitcoin.stackexchange.com/a/7865/78">This is what I used</a> in a similar scenario (Javascript/node.js).</p>

CC BY-SA 3.0
2013-09-01T13:06:54.627Z
This was perfect... I was able to install Node.JS on OSX and cracked it... execution time was 5 seconds.
makerofthings7
CC BY-SA 3.0
2013-09-01T15:51:36.700Z
@makerofthings7 terrific!
ripper234
CC BY-SA 3.0
2014-06-15T12:19:40.267Z
So does this mean someone internal at blockchain.info who has access to encrypted wallets could decrypt them by brute force in a small amount of time with limited computing power?
Fraggle
CC BY-SA 3.0
2014-06-22T10:21:59.987Z
@Fraggle only if the password was weak to begin with. In my case, my friend who lost his wallet pass had some ideas on the password, but at the end the brute-forcing effort we did didn't work out :(
ripper234
CC BY-SA 3.0
2013-08-20T16:48:14.293Z
2013-08-20T16:48:14.293Z
2017-04-13T12:47:33.660Z
ripper234
<p><a href="https://blockchain.info/wallet/wallet-format" rel="nofollow">The wallet format can be found here</a>. <a href="https://blockchain.info/DecryptWallet.html" rel="nofollow">There is also a tool that does this for you</a>.</p>

CC BY-SA 3.0
2013-08-19T23:51:14.173Z
2013-08-20T16:06:12.537Z
2013-08-20T16:06:12.537Z
kanojo
<p>I have a Blockchain wallet but am unable to decrypt my wallet and login.  I created the wallet on OSX and am trying to login on a PC but it's not working.</p>

<ul>
<li>What are my options to brute force this account, when I know most of the characters involved?</li>
</ul>

<p>I'm a programmer, and can write the code, so knowing what URLs and data files I need to work with would be a help.</p>

<wallet><blockchain.info>
How can I brute force decrypt my blockchain wallet?
makerofthings7
# How can I brute force decrypt my blockchain wallet?

(Asked by: username_0 on 2013-08-19)

I have a Blockchain wallet but am unable to decrypt my wallet and login. I created the wallet on OSX and am trying to login on a PC but it's not working.

* What are my options to brute force this account, when I know most of the characters involved?

I'm a programmer, and can write the code, so knowing what URLs and data files I need to work with would be a help.

**Tags:** wallet, blockchain.info


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## 2 answers

### Answer by username_1 on 2013-08-20. Score: 3 | Accepted answer

You can wrap a brute-force wrapper around any of the [answers here](https://bitcoin.stackexchange.com/q/3034/78). Just write some loops that iterate on all possible passwords, and call one of the functions in the linked question to try and decrypt you wallet.

[This is what I used](https://bitcoin.stackexchange.com/a/7865/78) in a similar scenario (Javascript/node.js).

> **Comments:**
> **username_0**: This was perfect... I was able to install Node.JS on OSX and cracked it... execution time was 5 seconds.  
> **username_1**: @username_0 terrific!  
> **username_2**: So does this mean someone internal at blockchain.info who has access to encrypted wallets could decrypt them by brute force in a small amount of time with limited computing power?  
> **username_1**: @username_2 only if the password was weak to begin with. In my case, my friend who lost his wallet pass had some ideas on the password, but at the end the brute-forcing effort we did didn't work out :(  

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### Answer by username_3 on 2013-08-19. Score: 2

[The wallet format can be found here](https://blockchain.info/wallet/wallet-format). [There is also a tool that does this for you](https://blockchain.info/DecryptWallet.html).


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