/// <reference types="node" />
import { BIP32Interface } from '@bitgo-beta/utxo-lib';
/**
 * bip32-aware wrapper around bitcoin-message package
 * @see {bitcoinMessage.sign}
 */
export declare function signMessage(message: string, privateKey: BIP32Interface | Buffer, network: {
    messagePrefix: string;
}): Buffer;
/**
 * bip32-aware wrapper around bitcoin-message package
 * @see {bitcoinMessage.verify}
 */
export declare function verifyMessage(message: string, publicKey: BIP32Interface | Buffer, signature: Buffer, network: {
    messagePrefix: string;
}): boolean;
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