An intelligent blockchain strategy for decentralised healthcare framework

Abstract

Nowadays, securely sharing medical data is one of the significant concerns in blockchain technology. The existing blockchain approaches have faced high time consumption, low confidentiality, and high memory usage for transferring the file in a secure way because of attack harmfulness and large unstructured records. It has ended in security threat, so the integrity of the user data has been lost. Hence, a novel hybrid Deep Belief-based Diffie Hellman (DBDH) security framework was presented to protect medical data from malicious events. Incorporating a deep belief neural system continuously monitors the system and identifies the attacks. Initially, the IoMT dataset was collected from the standard site and imported into the system. Moreover, hash 1 was calculated for the original data and stored in the cloud server for verification. Then, the original data was encrypted with a private key for data hiding. The incorporation of homomorphic property helps to calculate hash 2 for encrypted data. Finally, in the verification module, both hash values are verified. In addition, cryptanalysis was performed by launching an attack to validate the performance of the designed model. Moreover, the estimated outcomes of the presented model were compared with existing approaches to determine the improvement score.

Blockchain technology and federated machine learning for collaborative initiatives in orthodontics and craniofacial health

“…A blockchain is a distributed ledger (database that is consensually shared and synchronized by multiple sites) and each block comprises information on all transactions that is time stamped, cryptographic hash of the current block, and a hash of the previous block. [11][12][13][14][15][16][17][18][20][21][22][23][24][25] Each block is connected through the hash. Each block of data is authenticated and verified and consequently is tamper proof.…”

“…Each block of data is authenticated and verified and consequently is tamper proof. [20][21][22][23][24][25] Once a block is created and authenticated, it is almost impossible to change the data in the block as it would necessitate all subsequent blocks to be changed. Altering the blocks would be extremely challenging computationally and requiring enormous amounts of power.…”

“…Unlike the traditional databases that are used in the healthcare landscape which are controlled by one single organization, a blockchain network is a distributed consensus algorithm and there is no centralized authority. [20][21][22][23][24][25] Therefore, a single point of failure cannot happen. Each and every transaction in a blockchain can be traced with verifiable time stamps and all stakeholders that participate in the network can view the transactions.…”

“…Each block is connected through the hash. Each block of data is authenticated and verified and consequently is tamper proof 20–25 . Once a block is created and authenticated, it is almost impossible to change the data in the block as it would necessitate all subsequent blocks to be changed.…”

“…Consequently, a blockchain is immutable. Unlike the traditional databases that are used in the healthcare landscape which are controlled by one single organization, a blockchain network is a distributed consensus algorithm and there is no centralized authority 20–25 . Therefore, a single point of failure cannot happen.…”