/// <reference types="node" />
import { Stream } from 'stream';
import { PrivacyStrategy } from './privacy';
/**
 * The privacy strategy that secures the data using a long password, 50 characters minimum.
 */
export declare class PasswordPrivacyStrategy implements PrivacyStrategy {
    readonly password: string;
    static readonly MinPasswordLength = 10;
    /**
     * Create instance of this strategy
     * @param password the password
     * @return the instance of this strategy
     */
    static create(password: string): PasswordPrivacyStrategy;
    private constructor();
    /**
     * Get the privacy type which is set as PASSWORD
     * @return the privacy type's int value
     * @see PrivacyType
     */
    getPrivacyType(): number;
    /**
     * Encrypt byte stream with password
     * @param stream the byte stream to encrypt
     * @return the encrypted byte stream
     */
    encrypt(stream: Stream): Stream;
    /**
     * Decrypt byte stream with password
     * @param encryptedStream the byte stream to decrypt
     * @return the decrypted byte stream
     */
    decrypt(encryptedStream: Stream): Stream;
}