TABLE 2.

Exploratory analysis of studies

Author	Study description	Technique for data integrity
William J. Gordon et al. (2018) [14]	The study provides descriptive information of how to facilitate the block chain approach in healthcare sector. The paper also discusses about the challenges that are associated with blockchain in order to provide a secure communication.	Blockchain
James Brogan et al. (2018) [15]	The study provides distributed Ledger technologies in advancing electronic health information's. The paper provides a cost‐effective and novel approach for the healthcare organization.	Masked authenticated messaging extension
Peng Zhang et al. (2018) [16]	The paper provides a blockchain‐based architecture FHIR‐chain for securing Medicare.	Blockchain
Christian Esposito et al. (2016) [17]	The study uses cloud storage environment for data available in healthcare organizations and for patients. Authors also use blockchain approach for secure lab report transaction and communication.	Blockchain
Prosanta Gope et al. (2015) [18]	The study uses body sensor network approach for facilitating secure and integrity managed architecture of IoT in healthcare.	Secure‐BSN
P. Vimalachandran et al. (2017) [19]	Authors proposed authorization based model for Australian healthcare services.	Authentication
M. ELHOSENY et al. (2018) [20]	The study provides a stenographic technique with hybrid encryption mechanism for securing health records and images.	Encryption
EntaoLuo et al. (2018) [21]	The study provides a secure sharing based data transfer in IoT environment for data security of healthcare organization.	Slepian‐ Wolf‐coding‐based secret sharing (SW‐SSS)
Moshaddique Al Ameen et al. (2010) [22]	The paper discusses about the challenges and issues associated with the wireless sensors in healthcare sector.	‐
Gunasekaran Manogaran et al. (2017) [23]	Authors give a secure organizational IoT based model for storing and processing wearable sensor data in medical services.	Secure Cloud
Benjamin Fabiana et al. (2014) [24]	The study provides inter organizational data transfer security through various security attributes. The paper provides the architecture for secure data transfer from one organization to another.	Secure Cloud
Jinyuan Sun et al. (2011) [25]	The paper provides a secure health record system for patient privacy based on cryptographic techniques and IoT environment of healthcare industry.	Cryptography
Abdullah Al Omar et al. (2017) [26]	The study presents a data management system for healthcare services to facilitate patients through blockchain technology.	Blockchain
Sue Bowmanet et al. (2013) [27]	The study highlights the current challenges and other error causes in healthcare data integrity in healthcare organization. The paper provides a review on current HER system of healthcare.	‐
Anastasia Theodouli et al. (2018) [28]	The study presents mechanism for facilitating blockchain technology for providing auditable and sharable data in healthcare organization.	Blockchain
Zarour et al. (2020) [29]	The study used hybrid fuzzy based methodology for evaluating the impact of different blockchain technology models in a healthcare perspective.	Blockchain
Karim Abouelmehdi et al. (2018) [30]	In this study, the authors have discussed about the challenges and survey the current situation of healthcare big data.	‐
Anam Sajid et al. (2016) [31]	The study presents review on healthcare medical data security for providing privacy to the patients. Paper also discusses about the currently used techniques and approaches in healthcare system.	‐
Brihat Sharma et al. (2018) [32]	The study proposes a model, the Merkle tree‐based approach to secure the integrity of health records. The software model closely refers to the Blockchain technology.	Merkle tree‐based approach
Katharine Gammon (2018) [33]	The article illustrates the blockchain application in healthcare sector in various domains.	‐