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Blockchain in IoT: Smart City and Vehicle Use Cases

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The recent introduction of IoT technology has made machine-to-machine transactions possible and has created a whole new marketplace for IoT applications. This article will explore the possibilities of IoT technology and how to use it to achieve security and confidentiality. It will also look at a number of applications for IoT in the Smart city. Ultimately, you will find that IoT can be a powerful tool for creating a safer and more secure environment for our homes, cities, businesses and even our personal lives.

Keeping confidentiality and cost-effectiveness

Blockchain technology can play an important role in keeping confidentiality and cost effectiveness in IoT. This is not only because of the fact that it enables peer-to-peer data sharing, but also because of the scalability it offers.

There are several challenges that must be addressed when implementing blockchain. The biggest one is data storage. As IoT devices are computationally limited, it is difficult to store large amounts of data on a device. In this context, external storage comes to the rescue.

One of the first things researchers looked at was the cost of storing data on a blockchain. They found that storing a single variable in a smart contract is more cost effective than storing the same data in a huge array.

A similar question came up when it came to data privacy. How can an individual protect their identity, and what happens if a malicious attacker changes the data? Fortunately, blockchain provides a solution to this problem. It can help secure the real identities of the users.

In a nutshell, the Blockchain is an open, decentralized and tamper-resistant ledger that keeps track of transactions. The most efficient way to store data on a blockchain is to encrypt it. This makes it virtually impossible to alter the contents of the ledger.

In addition to scalability, another major challenge faced by researchers is the security of IoT data. Most IoT data is transmitted in trustless wireless environments. To counter this, there are multiple layers of security in place.

One of the most impressive features of the blockchain is its ability to validate a transaction in less than a minute. By eliminating intermediaries, this can help reduce costs and increase the speed of the transaction.

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Enabling secure, trustless messaging between different devices in the iot network

Enabling secure, trustless messaging between different devices in the IoT network is a vital task. It can facilitate scenarios that would not be possible with traditional IoT networks.

Traditionally, an IoT device has limited processing capabilities. Its memory capacity is often limited, and its connectivity bandwidth is limited. Therefore, it cannot easily handle transactions between two or more nodes in the network. In such cases, the use of blockchain in IoT is a promising solution to address privacy concerns and ensure the security of the transaction.

Currently, the only way to ensure that all IoT smart devices are registered in a single ledger is to use a centralized authority. However, this method has several drawbacks. For instance, centralized cloud-based platforms are susceptible to cyber attacks.

On the other hand, blockchain-enabled distributed data storage offers increased privacy and reduced cost. It also eliminates the need for a central point of failure.

The use of blockchain in IoT can provide a tamper-proof record of all smart devices. This can help maintain privacy and prevent a man-in-the-middle. Additionally, this is a good solution to the problem of interoperability between devices in an IoT network.

Another advantage of using blockchain in IoT is that it allows for the development of an open and decentralized architecture. Blockchain is a decentralized database that can be modified by all participants in the network. By sharing control rights among the nodes, the structure of the network improves security.

The implementation of a decentralized architecture in IoT can also eliminate the need for a centralized cloud server. A centralized server, on the other hand, is vulnerable to attack and poses a single point of failure.

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Making machine-to-machine transactions possible

A lot of IoT applications rely on machine-to-machine (M2M) communication. Machine-to-machine (M2M) communications are a form of automated communication between two devices, without human intervention.

There are three main challenges that M2M applications face. One is security. Another is privacy. Finally, there is the scalability issue. For example, a long-lived IoT device may outlive its infrastructure.

Fortunately, a decentralized database, a smart contract, and an immutable record-keeping system, or a blockchain, can help address these concerns. Combined, these technologies offer enhanced security, privacy, and efficiency. Moreover, the blockchain can also serve as a means of tracking supplier reputation.

Using smart contracts, manufacturers and vendors can automate procurement procedures. This helps avoid the risk of fraudulent duplication of digital assets. The smart contracts also serve as an evidence-recording mechanism.

Another benefit of combining the aforementioned technologies is the ability to re-purpose a data set. For instance, the meter contract can be used for monitoring performance data of an IoT device. And, a consortium blockchain can increase trust in a telecare medical information system.

Considering the aforementioned issues, integrating 6G-enabled IoT and blockchain promises to solve many of them. However, a careful analysis of the benefits and risks associated with such a technology is recommended.

Despite the fact that the IoT and blockchain have been proven to be powerful, the integration of these technologies is still in its infancy. As such, there is a lot of research to be done. Some of these research areas include developing a good incentive mechanism for resource-constrained IoT devices. Similarly, researchers have been working on improving the synchronization and communication of IoT devices.

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Intelligent vehicle trust point (IVTP)

The model combines the advantages of Blockchain and IoVs. It addresses the challenges associated with vehicle data storage and sharing, security, privacy, and the structure of transactions. Moreover, it addresses performance constraints by providing an incentive mechanism.

In the model, a consortium Blockchain is used to limit the number of participating entities. This is a lightweight and scalable Blockchain optimized for IoT environments.

The system involves two main components: a marketplace platform and an edge node. The marketplace platform is a vehicle data exchange platform, and the edge node is a vehicle that possesses a set of sensors and communications capabilities.

A large amount of vehicle data needs to be stored in a secure, efficient, and timely manner. The model also includes a distributed file storage system. These systems are known as IPFS and IVTP. Several papers have researched the implementation of these technologies in related scenarios.

However, the centralized communication model of a centralized vehicle communication network does not address issues of security and privacy. Instead, it can lead to single points of failure in the cloud server. Furthermore, this model does not account for the real time traffic rate in IoVs.

The system overcomes this problem by providing an incentive to the edge node for sharing validated services. Furthermore, this incentive is given in a cryptocurrency. Thus, the system can encourage users to participate and improve the cooperation of vehicles.

The model includes several assumptions and trust models. Finally, the proposed system uses a symmetric key encryption technique.

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Smart city applications

The smart city concept integrates information and communication technology (ICT) to meet market demands, improve quality of life, and enhance environmental conditions. It is also a tool to optimize resource utilization, improve urban services, and facilitate civic engagement.

IoT technology is used to develop a variety of smart city applications. These applications allow real-time responses and can be integrated with mobile devices. Smart cities are multi-stakeholder communities that are reliant on community involvement to operate efficiently.

Data exchange is critical for providing convenient urban services. To ensure security, smart city applications are designed to use the Blockchain interface. This secure interface allows users to transmit only parts of files. Moreover, it is impossible to tamper with or manipulate the data.

Using smart city applications, city officials can monitor the critical infrastructures, monitor traffic, and interact with the community. Additionally, the technology can help solve issues related to energy consumption, pollution, and security. Moreover, the city can be used as a platform for private businesses to invest in sensors.

Despite the advantages, there are still a number of challenges to overcome in the smart city application development. These include technological compartmentalization and competitive pressures. Moreover, infrastructural governing organizations are not well-versed in the different elements of the infrastructure. However, with proper education, they can understand the city’s needs and devise appropriate solutions.

Smart cities also face the challenge of dealing with data storage against cyberattacks. Using Blockchain to store data can eliminate this challenge. Moreover, the technology can help to improve the self-defense capability of smart cities.

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