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Bitcoin / Bitcoin Technical Support / Re: 2013 wallet with known passphrase still incorrect

on: November 24, 2020, 11:58:31 PM

Quote from: HCP on November 16, 2020, 11:27:46 PM Quote from: StaleCoinz on November 16, 2020, 01:22:10 PM Since I suspect an issue with the original passphrase's character encoding in the 0.8.6 client, (see: https://bitcointalk.org/index.php?topic=126791.0) I don't see what that thread has to do with "character encoding"? All I see in that thread is a user who claims they know their passphrase 110% and that it doesn't unlock their wallet? Quote The exotic character sets add even more variations. It would be nice if someone could offer certainty about whether this is even a possibility. Because I think it's strange that the passphrase stopped working in 2015. I actually can't remember if I could ever unlock it using that phrase, but I do remember bitcoin-qt being buggy as all hell. frustrating me enough to the point I backed up the wallet.dat and removed the software and blockchain files. Does the passphrase that you believe that you used contain characters with accents and/or symbols etc? Also, do you still have an "original" copy/backup of your 2015 wallet.dat file that you have NOT attempted to open with a newer version of Bitcoin Core? When you open wallet.dat files in newer versions of Bitcoin Core, the wallet file gets updated/modified. It might be helpful if you still have the old version of the wallet.dat to (make copies of) and "experiment" with. You could try getting an old version of Bitcoin Core/QT from here: https://bitcoin.org/bin/ and seeing if it is able to open the old versions of your wallet.dat file and test whether the passphrase works on the old copies. If it does, you could try and dump all your private keys and then import those keys into a new version of Bitcoin Core (or a completely different wallet like Electrum etc) to recover your funds. Again, be sure to make copies of the wallet.dat and experiment on the copies, not the original! The passphrase that I believe is the correct one is just alphanumeric (so a-z, 0-9). I have tried opening the wallet with older versions of the client which, i believe I mentioned, crashed upon loading. I experiment with copies, and keep my original wallet on my NAS (which is only locally accessible). The other thing that is weird is the older clients seem to use a character set no longer available in MacOS, as all text in the application consists of just rectangles. This leads me to believe it has something to do with the character set being used in the original wallet passphrase that does not correspond to my current keyboard layout (even though it might represent the same characters). This is because I stumbled upon this blog post https://keychainx.medium.com/how-to-recover-a-lost-bitcoin-wallet-dat-password-4ff7704740ad

2

Bitcoin / Bitcoin Technical Support / Re: 2013 wallet with known passphrase still incorrect

on: November 16, 2020, 01:22:10 PM

Quote from: jackg on November 16, 2020, 01:01:17 PM Have you tried fiddling around with options such as caps lock and number lock first just in case that was the problem. Yes. I've tried with caps lock, and a few typo variations. Doing this manually is a chore though, as an alhpanumeric password of 10 characters already generates enough variations to justify automating it (just not very good at that stuff). Since I suspect an issue with the original passphrase's character encoding in the 0.8.6 client, (see: https://bitcointalk.org/index.php?topic=126791.0) The exotic character sets add even more variations. It would be nice if someone could offer certainty about whether this is even a possibility. Because I think it's strange that the passphrase stopped working in 2015. I actually can't remember if I could ever unlock it using that phrase, but I do remember bitcoin-qt being buggy as all hell. frustrating me enough to the point I backed up the wallet.dat and removed the software and blockchain files. Quote from: jackg on November 16, 2020, 01:01:17 PM If you send a company the wallet hash and what you think the passphrase is they can't use the hash to build your wallet. Some prefer you send the wallet though as they are better assured you'll return the funds as it's they who need to trust you in order to do it and you'd have no incentive to pay them if trying to be anonymous at that point... So they can't steal my coins even if they have my wallet.dat and the recovered passphrase? That's sort of reassuring. I don't know if it'll be worth anyone's time since the value of the coins is just over E200,-

3

Bitcoin / Bitcoin Technical Support / 2013 wallet with known passphrase still incorrect

on: November 16, 2020, 12:56:48 PM

Hi all! I've dabbled in bitcoin as 'early' as 2013. I used the bitcoin-qt wallet on macos back then. Must've been mountain lion or mavericks. in 2015 I apparently encrypted my wallet (which I remember doing, just not exactly when). I know for sure I used a particular passphrase. version 0.20.1 of the client doesn't accept this passphrase. I believe I also had this same issue in 2015, which made me give up on bitcoin at that time. After using google and reading the forums I've found a few hints as to what might be going on. It seems however, that all the solutions use software that is no longer current or available, or (might) have been hacked to steal wallets. As it currently stands: client 0.20.1 can read the wallet, and shows the original transaction of my coins being added. I don't suspect any corruption issues. but since older versions of the client only show squares instead of text characters on the splash before they crash, I think this topic contains a few hints to what might be going on: https://bitcointalk.org/index.php?topic=126791.0 It could be that my passphrase was encoded incorrectly. Am I correct in assuming that extraction of the password hash would make it easier to brute force? What risk is involved with services that extract the hash for you? Can they steal my bitcoin? Can they crack the wallet themselves? Can it cause conflicts with transactions in the future?

4

Bitcoin / Bitcoin Technical Support / Re: importing wallet.dat from bitcoin-QT 0.8.6 to bitcoin core's newest version

on: November 16, 2020, 12:29:45 PM

I am having similar problems. I made a wallet with some version of the bitcoin-QT client in 2013. I was running this on macOS. Exact version eludes me but it must have been mountain lion or mavericks. I don't remember which version of the client it was. I used archive.org to download older clients but they won't run on macos Catalina. I read somewhere my problem might have to do with non-UTF encoding of the passphrase. Older clients seem to confirm this, as I see only squares instead of text characters on the splash screen, right before it crashes after loading the blockchain. I am fairly certain of the passphrase used, I'm just a complete novice at extracting the hash and brute forcing the passphrase. some breadcrumbs to point me in the right direction would be very much appreciated. The wallet contains around 200 euro's worth of bitcoin, so it would be nice to have access to it.

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