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Cloud computing is a renowned computing method of sharing data resources whether publicly or privately. Cloud computing is an answer for a better computing environment. It will reduce the costs which are used efficiently. Cloud computing can be used not only for business purposes but also for medical purposes which will be used by patients, specialists, pharmacists, nurses, doctors, and hospital administrations. As an implication, security is an important issue for cloud computing. Data privacy protection and data retrieval control are security issues for cloud computing. This Paper describes security elements like monitoring, recording, tracking and notification. For the purpose of encryption-decryption, AES-256/SHA will be used. Re-encryption "tag" and "mark" for data access system will only be functional for every legal user. It suggests that the cloud computing based on encryption and decryption services. Encrypted medical data could be accessed and decrypted from anywhere and whomever with particular authentication. The writer proposed the constructive idea of Healthcare data via cloud computing and the security accessing data by authorized individuals.