: The tool parses the Berkeley DB format used by Bitcoin Core and similar wallets to find the encrypted "master key" or "mkey".
While primarily for wallet.dat files from Bitcoin Core, the john suite includes similar scripts like blockchain2john for different wallet providers. Ethical and Legal Considerations Bitcoin2john
A modern RTX 4090 GPU can test roughly 20,000–30,000 Bitcoin wallet hashes per second. This sounds fast, but due to the iteration count (key stretching), it is significantly slower than cracking an MD5 hash (billions per second). This is why a good passphrase is crucial. : The tool parses the Berkeley DB format
file and outputs a string that represents the encryption parameters (salt, iterations, and encrypted master key). Broad Compatibility: and encrypted master key). Broad Compatibility: