felixarntz/wp-encrypt

<?php
/**
 * WPENC\Core\AccountKeyPair class
 *
 * @package WPENC
 * @subpackage Core
 * @author Felix Arntz <felix-arntz@leaves-and-love.net>
 * @since 1.0.0
 */

namespace WPENC\Core;

if ( ! defined( 'ABSPATH' ) ) {
    die();
}

if ( ! class_exists( 'WPENC\Core\AccountKeyPair' ) ) {
    /**
     * This class represents a single pair of public and private key for an account.
     *
     * @since 1.0.0
     */
    final class AccountKeyPair extends KeyPair {
        /**
         * Singleton instance.
         *
         * @since 1.0.0
         * @access private
         * @static
         * @var WPENC\Core\AccountKeyPair
         */
        private static $instance = null;

        /**
         * Singleton method.
         *
         * @since 1.0.0
         * @access public
         * @static
         *
         * @return WPENC\Core\AccountKeyPair The class instance.
         */
        public static function get() {
            if ( null === self::$instance ) {
                self::$instance = new self();
            }
            return self::$instance;
        }

        /**
         * Constructor.
         *
         * @since 1.0.0
         * @access protected
         */
        protected function __construct() {
            parent::__construct( 'account' );
        }
    }
}