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Cloud computing is being used in many applications and several aspects for storing and easy sharing of data. Among various trending uses of this technology, the e-health (electronic health) system is one. The health data records are kept in a semi-trusted third-party supplier (i.e., cloud). Therefore, its security has become the main concern. The e-health data on the cloud should be available only to the data owner. This work presents a literature survey on secure cloud-based e-health systems.doi:10.4108/eai.13-7-2018.163308 fatcat:zxjtineopbautdg6nlqr3e4fma