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Secure storage and sharing of health data in a Blockchain environment
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These days, the amount of digital health data is increasing. Legacy systems with privacy and security problems are used to store and share them. The blockchain technology appears as a disruptive solution to improve those systems. The main objective of this thesis work is to create a model based on the blockchain technology to securely store and share simple health assets.
The days when blockchain was only related with cryptocurrencies, like bitcoin, are
long past. Today, blockchain is considered an important technology to all applications
that need immutable and traceable data, a cryptographic and distributed ledger and secure transactions. MedRec and Medical chain are examples of solutions, based on the blockchain technology, to manage health records that have been developed.
The projected model describes a possible integration between MyXimi and a blockchain
network. MyXimi users would be the terminals of the network. They will insert new health
assets and get assets from the network. The network would consist of several distributed machines administrated by Compta. Those machines would store a public ledger of the health data transactions and all the sensitive data encrypted, always. As an application feature, management terminals would have access to anonymous health data for stats.
To test the main features of the projected model it was created a demonstration system:
XBlock. Within this system were used several methods to increase the privacy and security of the health data, such as, data encryption and data masking. XBlock was presented to a board of business and IT specialists, in Compta.
In conclusion, XBlock proves itself as a true value to enhance the levels of security
and privacy of health data when storing it and sharing it. As future work, is suggested
the implementation of the propose model integrated with an health app. During this
process, it’s important to improve the blockchain network, in terms of its performance and scalability.
Descrição
Palavras-chave
Blockchain Encryption Privacy Health data Caregiver Safe Sharing