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Other => Beginners & Help => Topic started by: btclost on July 16, 2012, 05:42:16 AM



Title: omg i forgot my password how to do
Post by: btclost on July 16, 2012, 05:42:16 AM
 I am unlucky today. I forget my wallet password. I have tried many times, but I still cannot remember it. Now, I write a dictionary with 200,000 password combinations to crack the password. I still havenít found out the systemís algorithm of authenticating, processing, and transforming the password. I hope some people who have any ideas to show me some code examples. If you have any good suggestions, I will sincerely thank and repay you if the suggestions work.


Title: Re: omg i forgot my password how to do
Post by: John (John K.) on July 16, 2012, 05:45:22 AM
Do you roughly remember the password ? Like in the words used? If not, it's generally uncrackable.


Title: Re: omg i forgot my password how to do
Post by: btclost on July 16, 2012, 05:52:51 AM
Do you roughly remember the password ? Like in the words used? If not, it's generally uncrackable.
how to do ,crack it,i want see some code


Title: Re: omg i forgot my password how to do
Post by: fatigue on July 16, 2012, 05:55:10 AM
Do you roughly remember the password ? Like in the words used? If not, it's generally uncrackable.
how to do ,crack it


Lol, its hopeless to help.


Title: Re: omg i forgot my password how to do
Post by: btclost on July 16, 2012, 05:59:57 AM
Do you roughly remember the password ? Like in the words used? If not, it's generally uncrackable.
how to do ,crack it


Lol, its hopeless to help.
10 password combination containing words, numbers, capitalization, and special symbols.But I have written a password dictionary


Title: Re: omg i forgot my password how to do
Post by: memvola on July 16, 2012, 06:05:59 AM
Easiest solution is to iterate `bitcoind walletpassphrase` over the dictionary.


Title: Re: omg i forgot my password how to do
Post by: John (John K.) on July 16, 2012, 06:15:15 AM
Do you roughly remember the password ? Like in the words used? If not, it's generally uncrackable.
how to do ,crack it


Lol, its hopeless to help.
10 password combination containing words, numbers, capitalization, and special symbols.But I have written a password dictionary
You mean a complete password list? IIRC, even with that plus the help of a couple Amazon instances you'll take ages to find it. A 10 password, 62 charset dictionary would span across 3-4k TB's. A 8 word pass with the 62 charset takes 1787 TB in space alone. Not to mention that the passphrase is converted into the AES key by doing  more then 10,000 SHA-256 operations.

See this: https://bitcointalk.org/index.php?topic=85495.0


Title: Re: omg i forgot my password how to do
Post by: RandomQ on July 16, 2012, 06:22:51 AM
Got access to a D-wave System?  ;D


Title: Re: omg i forgot my password how to do
Post by: capsqrl on July 16, 2012, 07:20:38 AM
You really have *no* idea what password you used? Did you wake up in back-alley this morning? :-)

You seem to be looking for a fast way to crack the encryption. Realize that if someone was able to provide you witih this, it would mean wallet encryption was fatally broken. And all signs says it isn't.


Title: Re: omg i forgot my password how to do
Post by: John (John K.) on July 16, 2012, 07:25:41 AM
You really have *no* idea what password you used? Did you wake up in back-alley this morning? :-)

You seem to be looking for a fast way to crack the encryption. Realize that if someone was able to provide you witih this, it would mean wallet encryption was fatally broken. And all signs says it isn't.
Exactly. Wallet-stealer < wallet.dat encryption.  ;)


Title: Re: omg i forgot my password how to do
Post by: Bitcoin Oz on July 16, 2012, 07:28:04 AM
Wonder where he stole the wallet from lol


Title: Re: omg i forgot my password how to do
Post by: capsqrl on July 16, 2012, 07:41:25 AM
Wonder where he stole the wallet from lol
I was too polite to post that, but yeah, I wonder too ;-)


Title: Re: omg i forgot my password how to do
Post by: memvola on July 16, 2012, 07:45:25 AM
Wonder where he stole the wallet from lol
I was too polite to post that, but yeah, I wonder too ;-)

I thought he was able to generate a list of 200K possibilities. If that's the case, I see no reason to be suspicious (though you can never know). Feed the list to bitcoind through a bash script and see if any one of them is correct. Good luck.


Title: Re: omg i forgot my password how to do
Post by: Stephen Gornick on July 16, 2012, 07:48:01 AM
If you think you know the passphrase but just aren't able to get logged in successfully, there have been successful interventions that have found the right passphrase.  Here are a couple recent examples:

 - http://bitcointalk.org/index.php?topic=93465.0
 - http://bitcointalk.org/index.php?topic=85495.0