In recent years, with the rapid development of e-commerce and network technologies, many people do online shopping through the Internet. If a physical product is bought by a client, the store will entrust their logistics to deliver the goods to the client. However, there have been many cases of switched goods which were purchased by clients recently. Some scholars proposed a security mechanism with a subliminal channel for E-cash and digital content previously. Only the designated sender and the designated receiver know the subliminal message which was hidden in the signature. Thus, it can be applied to solve the switched package issue. According to the WTO (World Trade Organization) forum, blockchain-related logistics applications have gradually emerged in recent days. Blockchain technology is essentially a decentralized database maintained by the collective. It has the characteristics of high reliability and high confidentiality and has a good prospect in effectively solving the trust problem between the two parties. In short, blockchain information will be publicly verifiable and cannot be tampered with, which provides solutions for traditional logistics. It realizes trust and cooperation between multiple entities, and create a modernized logistics environment. In this paper, we attach a sensor to monitor the situation of the delivery object and tag on the package to be an IoT object. The proposed scheme is a blockchain-based intelligent anti-switch package in tracing the logistics system. The client can check the GPS (Global Positioning System) location, the temperature, and humidity sensing data of the package any time during the delivery process, and the IoT-related intelligent logistics can be achieved. The proposed scheme also achieves data integrity, resisting replay attack, forward and backward secrecy, non-repudiation, and mutual authentication.

近年来，随着电子商务和网络技术的飞速发展，许多人通过Internet进行在线购物。如果客户购买了实物产品，则商店将委托其物流将货物交付给客户。但是，最近有很多客户购买了交换商品的情况。一些学者先前提出了一种具有潜意识渠道的电子现金和数字内容安全机制。只有指定的发送者和指定的接收者知道隐藏在签名中的潜意识消息。因此，它可以用于解决交换包装问题。根据WTO（世界贸易组织）论坛，近几天逐渐出现了与区块链相关的物流应用程序。区块链技术本质上是集体维护的去中心化数据库。它具有可靠性高，保密性高的特点，在有效解决双方之间的信任问题上具有良好的前景。简而言之，区块链信息将是可公开验证的，并且不会被篡改，这为传统物流提供了解决方案。它实现了多个实体之间的信任与合作，并创建了现代化的物流环境。在本文中，我们安装了一个传感器来监视交付对象的状况，并在包装​​上标记为IoT对象。提出的方案是一种基于区块链的智能防切换包，用于追踪物流系统。客户可以检查GPS（全球定位系统）的位置，温度，在交付过程中的任何时候都可以对包裹进行湿度和湿度传感数据，从而实现与物联网相关的智能物流。所提出的方案还实现了数据完整性，抵抗重放攻击，前向和后向保密性，不可否认性以及相互认证。