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Author Topic: Decryption on my own encrypted wallet.dat file?  (Read 2556 times)
wigglyuk
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November 15, 2011, 11:35:28 PM
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So I forgot to back up my wallet.dat file and created a passphrase for my main wallet. Well I wrote this passphrase down on a paper then entered it in the bitcoin client.
This morning I tried typing the passphrase in but it was incorrect.
I had 16 characters written down which should be a close approximation of the actually passphase. Is there any software I can run with my graphics cards or any written method I can use to decrypt my own encryption.

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astana
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November 16, 2011, 04:41:43 AM
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lol, sounds believable....
notme
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November 17, 2011, 01:40:52 AM
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You could write your own, or pay someone to write it.  If you have something close, you could try mutations of that ordered by levenshtein distance or something.  Pull the decrypting code from bitcoin and run it in a loop on those mutations until you find the one that works.

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
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GideonGono
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March 13, 2012, 04:36:28 AM
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I have the same issue. I remember most of the password. It's just one or two characters that are off. Anyone else found a solution?

shakaru
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March 13, 2012, 05:31:07 AM
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I have the same issue. I remember most of the password. It's just one or two characters that are off. Anyone else found a solution?

download your self a copy of backtrack 5. There are some good brute force password manipulators in there. It will give you a list of all possibilities. You just have to try them out.

John (John K.)
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March 13, 2012, 06:03:55 AM
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I have the same issue. I remember most of the password. It's just one or two characters that are off. Anyone else found a solution?

download your self a copy of backtrack 5. There are some good brute force password manipulators in there. It will give you a list of all possibilities. You just have to try them out.

I believe BT5 doesn't include this specific bruteforcer.
That said, use the pywallet script and run it with a batch file including a list of the passwords you wanted to test. That'll speed up the process.

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shakaru
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March 13, 2012, 06:26:53 AM
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I have the same issue. I remember most of the password. It's just one or two characters that are off. Anyone else found a solution?

download your self a copy of backtrack 5. There are some good brute force password manipulators in there. It will give you a list of all possibilities. You just have to try them out.

I believe BT5 doesn't include this specific bruteforcer.
That said, use the pywallet script and run it with a batch file including a list of the passwords you wanted to test. That'll speed up the process.

Ok, then if memory serves me right. BT3 should have it.

GideonGono
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March 13, 2012, 11:37:55 AM
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I have the same issue. I remember most of the password. It's just one or two characters that are off. Anyone else found a solution?

download your self a copy of backtrack 5. There are some good brute force password manipulators in there. It will give you a list of all possibilities. You just have to try them out.

I believe BT5 doesn't include this specific bruteforcer.
That said, use the pywallet script and run it with a batch file including a list of the passwords you wanted to test. That'll speed up the process.

Ok, then if memory serves me right. BT3 should have it.

May I know the name of the tool? I am on a low bandwidth connection for the time being so I cannot download BT3, I only have BT5 already installed.

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March 14, 2012, 12:43:46 PM
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I have the same issue. I remember most of the password. It's just one or two characters that are off. Anyone else found a solution?

download your self a copy of backtrack 5. There are some good brute force password manipulators in there. It will give you a list of all possibilities. You just have to try them out.

I believe BT5 doesn't include this specific bruteforcer.
That said, use the pywallet script and run it with a batch file including a list of the passwords you wanted to test. That'll speed up the process.

Ok, then if memory serves me right. BT3 should have it.

May I know the name of the tool? I am on a low bandwidth connection for the time being so I cannot download BT3, I only have BT5 already installed.
No idea for me. I've used BT since the first edition (beta) and I didn't see anything specifically for cracking bitcoin wallets.

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GideonGono
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March 15, 2012, 01:07:48 AM
 #10

No idea for me. I've used BT since the first edition (beta) and I didn't see anything specifically for cracking bitcoin wallets.

It doesn't have to be for bitcoin wallets specifically but anything that has a high likelihood of working.

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