/**
 * rfc8081
 */
import { AsnEncryptOptionsWithPassphrase, DER } from './typedef';
/**
 * Generate EncryptedPrivateKeyInfo ASN.1 object.
 * @param {DER} binKey - Binary key in DER format.
 * @param {AsnEncryptOptionsWithPassphrase} [options={passphrase: ''}] - Encryption options for ASN.1 private key.
 * @return {Promise<DER>} - Encrypted private key in DER.
 */
export declare const encryptEncryptedPrivateKeyInfo: (binKey: DER, options?: AsnEncryptOptionsWithPassphrase) => Promise<DER>;
/**
 * Decrypt EncryptedPrivateKeyInfo
 * @param {Object} epki - Parsed encrypted
 * @param {String} passphrase - Passphrase to decyrpt the object.
 * @return {Promise<Object>} - Decrypted object.
 */
export declare const decryptEncryptedPrivateKeyInfo: (epki: {
    encryptionAlgorithm: any;
    encryptedData: any;
}, passphrase: string) => Promise<any>;