Securing data in Decentralized Cloud Storage for Authorized Encrypted Search with Privacy-Preserving on Healthcare Databases

Nowadays, in the medical field number of applications will do develop for overcoming the complexity of previous work. By using information technology and computer science to provide various new techniques and medical equipment has improved digitalization in the healthcare sector. In the existing system, much more advancement is providing to overcome the time and money of patients and perform exact treatments and store patient’s confidential records securely but the most important issues are security. To address the existing security issues to design and develop the proposed research work on security, i.e. for patient’s confidential health data records in database servers. Existing work during data transmission can only protect the patient’s data records, but they can’t stop the insider attacks. In the proposed research work, first implement front-end security with the help of keylogging technique, second to store patient’s confidential data in multiple data servers or chunks and to prevent the insider attacks and third and most important is access policy of search for encrypted data of multi-authority. The addition of this analysis work is to specify patient data reports in several chunks securely and applying the cryptosystems for the security goals of a patient’s confidential records. Especially, proposed work advantages of SHA hashing technique to perform every user for access of particular data records. This research work explores secure data storage and sharing using the proposed AES 256 encryption algorithm and Role Base Access Control (RBAC) for secure data access schemes for the end-user. This work also carried out a backup server approach it works like a proxy storage server for ad hoc network data recovery for all distributed data servers.