Bitcoin Forum

Bitcoin => Bitcoin Technical Support => Topic started by: alumar on January 16, 2014, 04:58:34 AM



Title: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: alumar on January 16, 2014, 04:58:34 AM
a old bitcoin 0.2 client with a wallet.dat that you remember running for a strong 6 months...

You may have a basic idea what the encryption password is, but what you have tried hasnt worked, but could of used only a combination of about 12 different things. Brute force ... could take months?


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: charleshoskinson on January 16, 2014, 05:22:57 AM
How many coins we taking about here?


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: Keyser Soze on January 16, 2014, 05:32:08 AM
You'd have to look around the forum a bit, but there's at least a couple people out there offering password cracking services. Success rate would depend on how much of the password you remember, complexity and so forth. I believe there is also a way to do this without exposing the private keys to the person, if they are successful.


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: alumar on January 16, 2014, 05:33:12 AM
absolutely no clue, pc is a old dell d530 with a Intel QuadCore Q6600 ... so in that time, was a pretty nice processor to grind bitcoins, it also had a 4870 ...but from memory ... i dont remember doing GPU mining.


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: phillipsjk on January 16, 2014, 06:06:00 AM
I locked myself out of my own wallet. I think I recall choosing the length such that I can likely brute-force in the next 40 years (about 72 bits96 bits of entropy). I have it written down, so actual typos should be testable within a day.

I am thinking eventually wallets should start to integrate a "crack the password" feature. Though that would not work for extremely long/high-quality passphrases.

OP: I recommend backing up your wallet. Would suck if you crack the password, only to learn the drive crapped out.


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: bennybong on January 16, 2014, 06:43:52 AM
Just keep trying man. This happened to me once. The password is in your head somewhere... Just don't drive yourself too mad! And make/upload a backup somewhere safe & secure asap.

Good luck! I hope you and your bitcoins are reunited some day.


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: mikewoods on January 16, 2014, 06:55:47 AM
Just start writing any passwords hints down.
I had similar problem and I ended up building program that generated all possible passwords based on hints I had - few hundreds of those - which ended up containing the correct one.


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: grue on January 16, 2014, 03:54:51 PM
0.2 didn't have encryption. That was added in 0.6.0


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: deepceleron on January 16, 2014, 07:53:22 PM
0.2 didn't have encryption. That was added in 0.6.0
0.4.0. Worked securely in 0.5.0.


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: bennybong on January 17, 2014, 03:36:08 AM
0.2 didn't have encryption. That was added in 0.6.0

On snap.  OP? Your not going to tell this was just hypothetical all along are you...  :D


Title: Re: Hypothetical: So, your cleaning out closet, boot up old PC from 2010 and find...
Post by: empoweoqwj on January 17, 2014, 04:28:34 AM
0.2 didn't have encryption. That was added in 0.6.0

On snap.  OP? Your not going to tell this was just hypothetical all along are you...  :D

Well "Hypothetical" is in the title :) or did he add that after ;)