Post
Topic
Board Bitcoin Technical Support
Re: Encrypted wallet.dat, lost password, any solutions?
by
Revalin
on 03/04/2014, 05:28:50 UTC
I've gotten behind on things.  Let's catch up:

For everyone asking about Multibit: Sorry, I don't have time to write an interface for it right now.  If someone creates a command line or JSON-RPC API I can use to test a password I'll be happy to plug my script into it.

Dogecoin, other altcoins: Try using the newer Net::HTTP scripts.  They're more reliable and easier to plug into altcoin wallets.  https://bitcointalk.org/index.php?topic=85495.msg1768970#msg1768970

Everyone who's sent me PMs: Thanks for being patient.  I'll reply when I can.

I remember 6 in the password but cannot remember the rest, 16 in total..

10 characters is too many.  Details:  https://bitcointalk.org/index.php?topic=85495.msg4401257#msg4401257

If you can narrow down the search we might be able to help.

I run pywallet and this is what I get
The wallet is encrypted but no passphrase is used

This means you ran pywallet without the --password option.  It does not mean the wallet has an empty passphrase.

Another question is, what it's needed to change if I want to search for every possible solution with a script without any starting point. Any hints where I can read up about this?

First read this:  https://bitcointalk.org/index.php?topic=85495.msg4401257#msg4401257

The practical limit of brute force is 5-6 characters.  If you think your passphrase is that short I can write a script for you.

It's great for the rest of us because less coins means more value for the ones that are accessible. Think of it this way, they cannot sell those coins cheap, so it keeps the price higher.

The fact that it's so easy to lose your money is a significant hindrance to adoption.  If we can't come up with a better way to solve this problem then Bitcoin will be stuck in a niche: it's too difficult for most people to handle.  You call yourself FiatKiller...  If that's really your goal then this isn't just a big deal, it's the whole game.  Even if you're just an investor then widespread utility and public confidence will give you far more benefit than you'll see from a small reduction in the money supply.

I haven't heard back from the OP but I hope he recovered his wallet.  Otherwise he's just another statistic, and that's not good for any of us.