Abstract: - The broad acknowledgement of cloud-based services in the healthcare area has achieved useful and supportive exchange of Healthcare Records among a couple of components of the e-Health frameworks. In any case, storing the secret health information to cloud servers is vulnerable to disclosure or burglary and requires the enhancement of methodologies that ensure the security of the PHRs. Hence analysed a methodology for secure sharing of the records in the cloud. The pro- posed system guarantees patient-centric control on the records and preserves the grouping of the records. The patients store the encoded records on the cloud servers and explicitly give access to different segments of records to dif- ferent sorts of people. A semi-trusted proxy called ’Setup and Re-encryption Server’ (SRS) is acquainted with setting up data users with a general/private key, which combines and delivers there encryption keys. In addition, it uses Blockchain technology to share these records and secure privacy
Keywords: Healthcare, Blockchain, Security, Encryption, Safety, Medical.