/// <reference types="node" />
/**
 * This file is part of Swapable shared under AGPL-3.0
 * Copyright (C) 2021 Using Blockchain Ltd, Reg No.: 12658136, United Kingdom
 *
 * @package     Swapable
 * @author      Grégory Saive for Using Blockchain Ltd <greg@ubc.digital>
 * @license     AGPL-3.0
 */
import { Wallet, Network } from 'symbol-hd-wallets';
/**
 * @interface KeyProvider
 * @package Swapable
 * @subpackage Contracts
 * @since v1.0.0
 * @description Interface that describes key providers.
 */
export interface KeyProvider {
    /**
     * @description The provider keychain (e.g.: Network.BITCOIN, Network.CATAPULT)
     */
    readonly keyChain: Network;
    /**
     * Creates a key provider for the current blockchain implementation.
     *
     * @see symbol-hd-wallets
     * @param   {Buffer}    seed    The password encrypted mnemonic seed (bip39).
     * @return  {Wallet}    Returns a key provider.
     */
    getKeyProvider(seed: Buffer): Wallet;
    /**
     * Unlock a key tree for signing. This method returns
     * a private key.
     *
     * @param {string}    derivationPath
     * @return {Buffer}
     */
    getPrivateKey(seed: Buffer, derivationPath: string): Buffer;
}