So far, the main use of DLT in the context of personal data has been to verify the authenticity of a piece of information.
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These technologies can be used to better manage the aforementioned trade-off between privacy and security.
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In general, we already have the technological infrastructure to manage official health records privately and securely using blockchain....
Other features can be easily added to such a system.One is private and secure biometric authentication.
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The point is that if two encrypted pieces of data are sufficiently similar, then they must belong to the same person....
All data are collected, and all the hash uploaded on the blockchain are uniquely associated to an individual, without ever knowing who this person is.Because this is a blockchain, it is possible to add a layer of incentives....
Privacy is violated when personal data are collected automatically, on a large scale, without any individual-specific reason to do so.
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