/// <reference types="node" />
import { algorithm } from './key';
/**
 * Decrypt an encrypted string
 *
 * @param encrypted The encrypted string to decrypt
 * @param key The key to use to decrypt the string, must be the same used during encryption
 * @param algorithm The algorithm to use use to decrypt the string, must be the same used during encryption
 * @returns The string decrypted
 */
export declare const decrypt: (encrypted: string, key: Buffer, algorithm?: algorithm) => string;
/**
 * Enctypt a string
 *
 * @param value The value to encrypt
 * @param key The key to use to encrypt the string
 * @param algorithm The algorithm to use to encrypt the string
 * @returns The string encrypted
 */
export declare const encrypt: (value: string, key: Buffer, algorithm?: algorithm) => string;