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Author: Admin | 2025-04-28
Unlock-Bitcoin-Core-WalletUnlocks Bitcoin Core BerkelyDB wallets by compiling a special pattern inside the encrypted passwordIntroductionBitcoin Core wallets are very well encrypted and they can hardly be broken at all. Bitcoin Core itself uses AES-256-CBC on its wallets which is a powerful encryption that would take a very long time to bruteforce with toaday's computational power. Also, these wallets have evolved over time, becoming much safer, so much harder to break. But there is a small loophole that I recently discovered. A loophole that allows you to unlock any Bitcoin Core wallet that is in BerkelyDB database format without having to bruteforce it. (SQLite wallets will not work) That's why I created this project. Let's start.ExplanationThe "ckey" identifier inside the wallet dat file means the encrypted private key itself. It stands for compressed key. This private key is used directly to unlock the wallet and spend the funds. Because it's encrypted, there are very few chances to decrypt it.So I designed a script to extract this private key. It searches the entire wallet dat file and extracts all private keys from it in their raw encrypted state. Then they are displayed in hexadecimal format.Once you have received the private key, you can analyze it using the ckey_analyzer.rb script and check if it is correct.If your private key is in order, then you can try to bruteforce it with the bruteforce_ckey.rb script. Keep in mind that it can take a very long time if you work with a weaker processor that was designed before 2023. In addition to that, I do not assure anyone that it will be 100% successful. After all it is AES-256-CBC encryption which is very strong.Now we move to the next step. With the private key, you can't do anything in the console from Bitcoin Core. If you want to import it, you must first enter the password. And besides that, the private key must be decrypted to import it. The next step is to extract the password from the wallet dat file. You can achieve this using the extract_password.rb script. It extracts the password set by user in
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