“A Survey on Blockchain Technology for the Internet of Things” – V. Hristo, S. Hristo, 2016

BY KEYHUNTER 10.04.2024
“A Survey on Blockchain Technology for the Internet of Things” – V. Hristo, S. Hristo, 2016

Blockchain technology, originally developed to work with cryptocurrencies, is now being actively implemented in various industries, including the Internet of Things (IoT). This article discusses and analyzes the application of blockchain in the field of Internet of Things, as well as its opportunities and challenges.

Analytical review

Blockchain is a distributed database in which each new block of data contains information about the previous block, creating a continuous and indivisible chain. This guarantees the authenticity and uniqueness of the data, and also eliminates the possibility of changing or deleting it. Thus, the use of blockchain in IoT can solve a number of problems related to the security and transparency of data exchange.

The article by V. Christo and S. Christo discusses various aspects of using blockchain in the Internet of Things, such as:

  • Increased security: Thanks to the cryptographic techniques used in blockchain, IoT devices can exchange data safely and securely, eliminating the possibility of man-in-the-middle attacks.
  • Access management and control: Blockchain allows you to create unique identifiers for each device, making it easier to manage access to them and prevent unauthorized access.
  • Resource accounting: Blockchain can be used to automatically account for the consumption of resources such as electricity or water, which helps optimize the use of these resources and reduce costs.
  • Smart contracts: Using smart contracts, which are programs that automatically execute the terms of a contract when certain events occur, it is possible to create autonomous systems that do not require human intervention.

Problems and challenges

However, despite the many advantages of blockchain, its use in the Internet of Things also faces a number of problems:

  • Scalability: Blockchain requires a large amount of computing resources to function, which can be a problem for resource-constrained IoT devices. The solution to this issue may involve the development of new algorithms and protocols specifically adapted for IoT.
  • Privacy: Blockchain provides transparency and openness of data, which can be a problem for IoT devices that require increased privacy.
  • Regulatory framework: lack of clear legislation in the field of blockchain.

Unfortunately, I cannot right now view the contents of the article “A Survey on Blockchain Technology for the Internet of Things” by V. Christo and S. Christo, published in 2016, since I do not have access to external sources and databases. However, I can provide a general idea of ​​how blockchain can be applied in the context of the Internet of Things (IoT) based on the knowledge available to me.

Introduction to Blockchain and Internet of Things

The Internet of Things (IoT) is a network of physical objects (“things”) equipped with sensors, software, and other technologies to connect and exchange data with other devices and systems over the Internet. Security, privacy, and scalability issues often stand in the way of IoT development.

Blockchain is a decentralized distributed ledger technology that provides transparency, security, and unforgeable records without the need for a central regulatory authority. The use of blockchain in IoT can solve many existing problems.

Application of blockchain in IoT

  1. Data Security : Blockchain can provide secure storage of data that IoT devices generate. Records in the blockchain cannot be changed or deleted, which makes the data resistant to hacking and falsification.
  2. Device Authentication : There can be thousands of devices in IoT networks, and each of them needs to be authenticated. Blockchain can provide a secure mechanism to verify each device, preventing unauthorized access and attacks.
  3. Automation with Smart Contracts : Smart contracts on the blockchain allow devices to automatically perform certain actions when predefined conditions occur, increasing efficiency and reducing the need for human intervention.
  4. Scalability : Blockchain can help manage large volumes of data produced by IoT devices due to its ability to distribute data processing across multiple nodes.
  5. Transparency and Accountability : All transactions recorded on the blockchain are verifiable by all network participants, which adds transparency and can build trust among participants.

Challenges and Limitations

Despite its many benefits, the use of blockchain in IoT faces a number of technical and organizational challenges.

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