Abstract
Blockchain (BC) in the Internet of Things (IoT) is a novel technology that acts with decentralized, distributed, public and real-time ledger to store transactions among IoT nodes. A blockchain is a series of blocks, each block is linked to its previous blocks. Every block has the cryptographic hash code, previous block hash, and its data. The transactions in BC are the basic units that are used to transfer data between IoT nodes. The IoT nodes are different kind of physical but smart devices with embedded sensors, actuators, programs and able to communicate with other IoT nodes. The role of BC in IoT is to provide a procedure to process secured records of data through IoT nodes. BC is a secured technology that can be used publicly and openly. IoT requires this kind of technology to allow secure communication among IoT nodes in heterogeneous environment. The transactions in BC could be traced and explored through anyone who are authenticated to communicate within the IoT. The BC in IoT may help to improve the communication security. In this paper, I explored this approach, its opportunities and challenges.
Highlights
The Internet of Things (IoT) is growing exponentially year by year with its aim in 5G technologies, like Smart Homes and Cities, e-Health, distributed intelligence etc. but it has challenges in security and privacy
The BC is a technology the provide the security in transactions among the IoT devices
Verified blocks can enter in the BC. v) Autonomous: In BC, all IoT nodes are free to communicate with any node in the network without the centralized system. vi) Scalability: In BC, the IoT devices will communicate in high-available, a distributed intelligence network that connects with destination device in a real-time and exchange information
Summary
The IoT is growing exponentially year by year with its aim in 5G technologies, like Smart Homes and Cities, e-Health, distributed intelligence etc. but it has challenges in security and privacy. The IoT devices are connected in a decentralized approach. The BC is a technology the provide the security in transactions among the IoT devices. It provides a decentralize, distribute and publicly available shared ledger to store the data of the blocks that are processed and verified in an IoT network. January-February-2019 ; 5(1) : 151-157 i) Decentralized framework: This approach is similar in IoT and BC It is removed the centralized system and provide the facility of a decentralized system. BC is a trusted technology that provides uniquely identified data stored in public ledger. Vi) Scalability: In BC, the IoT devices will communicate in high-available, a distributed intelligence network that connects with destination device in a real-time and exchange information. The rest of the paper is summarized as follows: section 1 represents the introduction of the paper, section 2 represents the literature survey, section 3 introduces the role of BC in IoT, section 4 represents the opportunities of the integrated approach, section 5 represents the challenges and section 6 represents the conclusion
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