Derives key material without constructing an InMemorySigner.
Uses the same defaults, English BIP39 phrases, password and paths as fromMnemonic.
Supports Ed25519, secp256k1 and P-256 mnemonic derivation.
The returned secretKey is unencrypted and matches InMemorySigner.secretKey(),
including the expanded Ed25519 form. Avoid logging or sharing the result.
Derives key material without constructing an InMemorySigner. Uses the same defaults, English BIP39 phrases, password and paths as fromMnemonic. Supports Ed25519, secp256k1 and P-256 mnemonic derivation. The returned secretKey is unencrypted and matches InMemorySigner.secretKey(), including the expanded Ed25519 form. Avoid logging or sharing the result.