import { IEncryptionResults } from './types.js';
import '@tradetrust-tt/tradetrust';
import '@tradetrust-tt/tradetrust/dist/types/shared/utils';

/**
 * Encrypts a given string with symmetric AES
 * @param {string} document Input string to encrypt
 * @param {string} [key] Optional encryption key in hexadecimal; generated if omitted
 * @returns {IEncryptionResults} Object with cipherText (base64), iv (base64), tag (base64), key (hex), and type (algorithm identifier)
 */
declare const encryptString: (document: string, key?: string) => IEncryptionResults;

export { encryptString };