METHOD FOR SECURING IOT DEVICES USING BLOCKCHAIN

Abstract

The present invention provides a method and system for securing Internet of Things (IoT) devices using blockchain technology. The method involves registering each IoT device on a blockchain network with a unique cryptographic key pair, where the public key is stored on the blockchain for device authentication. Once authenticated, IoT devices communicate securely over the network with encrypted data, recorded on the blockchain to ensure data integrity and non-repudiation. The system also utilizes smart contracts to enforce access control policies, automatically granting or denying network access based on predefined conditions such as device identity, firmware version, or manufacturer. This decentralized approach provides enhanced security for IoT networks, mitigating risks of unauthorized access, data tampering, and breaches while offering a scalable, efficient, and transparent solution for IoT device management.

Specification

Description:The embodiments of the present invention generally relates to the field of cybersecurity, specifically to a method and system for securing Internet of Things (IoT) devices using blockchain technology. The invention provides a novel approach to address security vulnerabilities inherent in IoT networks by leveraging the decentralized and immutable features of blockchain to authenticate, monitor, and control communication between IoT devices, ensuring data integrity, confidentiality, and non-repudiation.
BACKGROUND OF THE INVENTION
The following description of related art is intended to provide background information pertaining to the field of the disclosure. This section may include certain aspects of the art that may be related to various features of the present disclosure. However, it should be appreciated that this section be used only to enhance the understanding of the reader with respect to the present disclosure, and not as admissions of prior art.

The rapid expansion of the Internet of Things (IoT) has , Claims:1. An IoT security method using blockchain technology, comprising:
registering each Internet of Things (IoT) device on a blockchain network by generating a unique cryptographic key pair for each device, wherein the public key of the device is stored on the blockchain;
authenticating each IoT device by comparing its public key with the keys stored on the blockchain before granting access to the network;
enabling secure encrypted communication between authenticated IoT devices over the blockchain network, wherein each communication is encrypted with the device's private key and recorded as a transaction on the blockchain to ensure data integrity;
utilizing smart contracts to enforce access control policies, wherein the smart contract defines access permissions for each IoT device based on predefined criteria.

2. The method of claim 1, wherein the blockchain network is a decentralized ledger that stores the public keys of IoT devices, cryptographic data transactions, and smart contracts.

3. The method of claim

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