Once you have your hash.txt , you can proceed to use John the Ripper: john --format=Bitcoin hash.txt Use code with caution. Safety and Security Warnings
Older versions of Bitcoin Core (pre-0.4.0) used weak encryption (SHA-256). Modern versions use with a key derived via OpenSSL’s EVP_BytesToKey using SHA-512. This is strong encryption, but the weak link is always the user's memory. Bitcoin2john
It reads wallet file structures (Berkley DB for Core, JSON for others) and builds the $bitcoin$ hash line. Once you have your hash
cat hash.txt
is often recommended as a more specialized alternative to standard JtR methods. Once you have your hash.txt
If bitcoin2john.py fails for your wallet version, you can manually extract using pywallet or dumpwallet RPC (if wallet is open). But generally, Bitcoin2john is the standard.