import { EncryptedKey, KeyMetadata, KeyStore } from "../Types";
import { BrowserStorageConfigParams } from "./BrowserStorageFacade";
/**
 * KeyStore for Chrome and Firefox browser storage API:
 * https://developer.chrome.com/docs/extensions/reference/storage/.
 * Once instantiated and configured, pass it to the `KeyManager` contructor to
 * handle the storage of encrypted keys.
 * ```js
 * const browserKeyStore = new KeyManagerPlugins.BrowserStorageKeyStore();
 * browserKeyStore.configure({ storage: chrome.storage.local });
 * const keyManager = new KeyManager({
 *     keyStore: browserKeyStore
 *  });
 * ```
 */
export declare class BrowserStorageKeyStore implements KeyStore {
    name: string;
    private keyStore;
    constructor();
    /**
     * The configuration is where the storage engine is set up and configured.
     * It must follow the Storage interface :
     * https://developer.chrome.com/docs/extensions/reference/storage/).
     * This is mostly for use with Chrome and Firefox storage in addition to
     * libraries that shim this (for ex: webextension-polyfill)
     * @param {BrowserStorageConfigParams} params A configuration object.
     * @param {Storage} params.storage The Storage instance. Required.
     * @param {string} [params.prefix] The prefix for the names in the storage.
     * @returns {Promise} resolved data
     */
    configure(params: BrowserStorageConfigParams): Promise<void>;
    storeKeys(keys: EncryptedKey[]): Promise<KeyMetadata[]>;
    updateKeys(keys: EncryptedKey[]): Promise<KeyMetadata[]>;
    loadKey(id: string): Promise<any>;
    removeKey(id: string): Promise<KeyMetadata>;
    loadAllKeys(): Promise<EncryptedKey[]>;
}