Derive Addresses from Bitcoin Private Keys
You have: Standard Wallet Import Format (WIF) private keys or a brainwallet passphrase.
You get: The derived Bitcoin addresses.
BIP38 Feature: By enabling the BIP38 protocol, you can decrypt password-protected private keys (starting with 6P) and encrypt standard private keys (starting with 5, L, or K).
Derive Addresses from Ethereum Private Keys
You have: Ethereum private keys or a brainwallet passphrase.
You get: The derived Ethereum addresses.