export default class Crypt {
    private _key;
    private _iv;
    constructor(key: string, iv: string);
    /**
     * Decrypt string passed in parameter
     * @param {string} item - encrypted string
     * @returns {string} decrypted item
     */
    decrypt(item: string): string;
    /**
     * Encrypt string passed in parameter
     * @param {string} item
     * @returns {string} encrypted item
     */
    encrypt(item: string): string;
}