Recover a MultiBit Classic wallet.
MultiBit Classic was the original MultiBit desktop wallet, storing AES-encrypted private-key exports.
For a forgotten MultiBit Classic password on an old key-export file.
Yes. MultiBit Classic is one of the formats that reduces to a check-only extract, so the fleet can test passwords against it safely — finding the password never exposes a key that holds funds. GPU-friendly. You pay 15% only if we recover it, and nothing if we don't.
The MultiBit Classic extract, in detail.
Exactly what the fleet receives for this format — and why finding the password still can't move the funds.
What leaves your machine — and what never does
For a MultiBit Classic wallet, this is the entire check-only extract the fleet receives. It can test a password, but it can never be turned back into a key that spends.
$multibit$ - the 8-byte OpenSSL salt
- the first 16-byte ciphertext block
- the rest of the encrypted private-key export — never sent
- your addresses and balances
A correct password decrypts the first block to valid Base58 private-key text; nothing spendable is reconstructed from the fragment.
valid Base58 key text $multibit$<salt-hex>$<first-block-hex> Illustrative and synthetic — placeholder bytes.
The OpenSSL "Salted__" salt plus one ciphertext block — roughly 24 bytes.
MultiBit Classic uses OpenSSL's salted format — an MD5-based key derivation over the password and an 8-byte salt, then AES-256-CBC.
A correct password decrypts the first block to valid Base58 private-key text; nothing spendable is reconstructed from the fragment.
$multibit$ An open, published format. The agent checks every job matches it before running — so a real wallet can't be disguised as an extract.
See the full security model, or how a recovery works end to end.