Blockchain in IoT and Beyond: Case Studies …

117

challenge in blockchain for IoT use cases in healthcare. Also, wearable IoT devices

are being used for clinical trials by tracking all the vital signs and data among some

indicators such as blood sugar, blood pressure, heart rate, weight, and others. Also,

more secure remote patient monitoring is needed in medical IoT devices, and also in

the drug supply chain, the other use case. In 2018, Swiss Post launched a program,

which uses blockchain and integrated with IoT that tracks the temperature stability

of pharmaceuticals products that are shipped in the mail. The carrier ensures that

temperature-sensitive drugs such as insulin be remained within an acceptable range

of temperature on its journey towards patients. Blockchain technology allows Swiss

Post to track these data and also share it with insurers and customers.

The next prospect of blockchain and transportation management is very impor-

tant for the logistics industry that is reported by the Internet of Things Institute.

Blockchain technology works with IoT-based systems in various applications likely

to provide shipment data, catalog information, and blockchain also guarantees

information accuracy.

Most of other issues that are access control mechanism, time required to fetch

the data from different devices addressed. The centralized mechanism may have a

single point of failure along with the computational overhead. So, the need for an

efficient decentralized access control mechanism is arise for device-to-device (D2D)

communication in industrial sectors. It has been observed that blockchain can change

and revolutionize most of the current and future industrial applications and also in

different sectors by providing fine-grained access control.

Blockchain technologies also significantly upgrade defense mechanisms that are

used in critical infrastructure protection where intrusion detection, malwares, and

more specifically that of collaborative intrusion detection. IoT, thus, can transform

the industry in almost every facet of applications from logistics to production to

distribution. Defense Forces in India are already using a lot of IT infrastructure and

applications. Strategic, tactical, operational, and logistic applications are already

using a lot of IT-enabled solutions with blockchain technology.

3

Blockchain and Identity: Concepts and Case Study

Identity management is one of the challenges in the IoT environment. Section 3.1

gives the role of identity management on DLT in IoT. Section 3.2 gives some concepts

related to identity management. Section 3.3 discusses Hyperledger Indy in detail.