Blockchain in IoT

Running head: BLOCKCHAIN IN IoT
Blockchain in IoT
Name of the Student:
Name of the University:

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BLOCKCHAIN IN IoT
Abstract
Internet of Things (IoT) is the physical objects that are able to communicate via the embedded
systems. It leads to a distributed network of devices which can communicate with human and
others. Implementation of IoT will provide benefits but it also raises security issues to affect data
integrity and privacy for the companies. In order to overcome security issues, blockchain
technology is used. The paper is based on up-to-date research on the blockchain as well as IoT
with the purpose to study the blockchain as potential solutions to secure IoT data. Both, as well
as IoT, are new research areas into existing research, which support the use of qualitative
research method. The results are indicated that blockchain is used to secure data management but
a blockchain is a tool, not a complete solution. Most of the security issues are related to devices,
and blockchain technology handles information, secures identities, good’s traceability,
transactions which are made without human interaction and automated storage management.
There are still some barriers to create benefits work into reality but there is lots of research which
are done in this paper. This paper is focused on investigating the integration of IoT and
blockchain to analyze and improve security issues.
Keywords: Blockchain, Internet of Things, data integrity, privacy, transactions, interaction,
automated storage management.

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BLOCKCHAIN IN IoT
Acknowledgement
The research is conducted to enrich the experience of my life. The research enhances my
knowledge and skills on the selected research topic. With gaining of the knowledge, it gives me
opportunity to face some challenges and overcome them. Without the guidance of my professors,
friends and family, I would not able to complete the study. They all contribute me to enhance my
knowledge on the research topic. I would also like to thank my supervisor -------------- for
providing me constant support and guidance during the entire research process. Without all their
help, I am not able to collect information and valuable resources. It also provides us valuable
results for the project work. All their support inspires and enlightens me to go through the
research process.
Heartfelt thanks and warmest wishes,
Yours Sincerely,

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BLOCKCHAIN IN IoT
Table of Contents
Chapter 1: Introduction....................................................................................................................8
1.1 Background of the topic.........................................................................................................8
1.2 Research aim and objectives..................................................................................................9
1.3 Research questions.................................................................................................................9
1.4 Research hypothesis.............................................................................................................10
1.5 Problem statement...............................................................................................................10
1.6 Rationale of the study..........................................................................................................11
1.7 Structure of the study...........................................................................................................12
1.8 Summary..............................................................................................................................13
Chapter 2: Literature Review.........................................................................................................15
2.1 Introduction..........................................................................................................................15
2.2 Blockchain Technology.......................................................................................................15
2.3 Characteristic Features of Blockchain Technology.............................................................18
2.4 Integration of IoT and Blockchain.......................................................................................18
2.5 Ways of Integration of IoT with Blockchain.......................................................................20
2.6 Challenges in blockchain–IoT integration...........................................................................22
2.7 Benefits of Integration of blockchain with IoT...................................................................24
2.8 Blockchain platforms for IoT..............................................................................................25
2.9 Summary..............................................................................................................................27

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BLOCKCHAIN IN IoT
Chapter 3: Current trend/scenario and exiting solutions for the security challenges....................28
3.1 Current trends of a blockchain.............................................................................................28
3.2 Security challenges in the blockchain..................................................................................30
3.3 Main blockchain security features.......................................................................................31
3.4 Exiting solutions for the security challenges.......................................................................33
Chapter 4: Blockchain as a solution..............................................................................................35
4.1 Introduction..........................................................................................................................35
4.2 Analyzing the use of blockchain in different industries......................................................35
4.3 Blockchain cryptography solution.......................................................................................39
4.3 Disadvantages of blockchain technology............................................................................41
4.4 Summary..............................................................................................................................41
Chapter 5: Data Analysis and Discussion......................................................................................43
5.1 Introduction..........................................................................................................................43
5.2 Making better Supply Chain................................................................................................43
5.3 Blockchain Categories that are based on Data Access........................................................47
5.4 Blockchain platforms for creating blockchain applications................................................55
5.5 Evaluation............................................................................................................................57
5.6 Discussion............................................................................................................................58
Chapter 6: Conclusion...................................................................................................................60
6.1 Conclusion...........................................................................................................................60

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BLOCKCHAIN IN IoT
6.2 Linking with the objectives.................................................................................................61
6.3 Recommendations................................................................................................................62
6.4 Further scope of the study....................................................................................................63
References......................................................................................................................................64

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BLOCKCHAIN IN IoT
Table of Figures
Figure 2.1: Representing the architecture of Blockchain..............................................................16
Figure 2.2: Representing the Block Header of Blockchain...........................................................17
Figure 4.1: Statistical analysis of industries using IoT in blockchain technology........................39
Figure 5.1: Enterprise BlockChain Survey....................................................................................46
Figure 5.2: Main Features of Blockchain Applications.................................................................49
Figure 5.3: Planning for Implementing Blockchain......................................................................50
Figure 5.4: Influence of Attacker...................................................................................................52
Figure 5.5 (a): Attacker hash power 20%......................................................................................53
Figure 5.5 (b): Attacker hash power 40%......................................................................................53

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BLOCKCHAIN IN IoT
Table of Tables
Table 3.1: IoT security threats and its possible solutions..............................................................34
Table 5.1: Blockchain platforms for creating blockchain applications.........................................56