Approach

Features

Patient Controls Access to his EMRs

Anonymous Healthcare Service

EMR-Availability

EMR-Confidentiality

EMR-Integrity

EMR-Access Control Delegation

EMR-Zero-Knowledge Proof

EMR-Selective Disclosure

EMR-Anti-Correlation

EMR-Ownership Proof

EMR-Revocation

Indy EMRs

ü

ü

++

++

++

ü

ü

ü

ü

ü

ü

• means that the proposed approach has the corresponding feature.

• An empty case means that the proposed approach hasn’t the corresponding feature.

• +++: high ++: medium +: low.