/**
 * Encrypts a given text using AES encryption.
 *
 * @param text - The plain text to encrypt.
 * @returns The encrypted text as a base64-encoded string.
 */
export declare const encrypt: (text: string) => string;
/**
 * Decrypts a given AES-encrypted text back to its original plain text.
 *
 * @param text - The encrypted text to decrypt.
 * @returns The decrypted plain text. If decryption fails, returns an empty string.
 */
export declare const decrypt: (text: string) => string;