چكيده لاتين
With the advancement of information and communication technology, the benefits of cloud storage, such as sufficient storage space, instant access, cost-effectiveness, and efficient data management, have become more evident. To align with the information era, leverage the advantages of cloud storage, and enhance the quality of healthcare, paper-based healthcare systems are migrating to electronic medical record (EMR) systems. By utilizing cloud-based electronic medical record systems, patients can remotely outsource their medical records to a cloud service, and doctors can access these records to monitor patient health and provide prescriptions. Using cloud-based electronic medical record systems facilitates access to up-to-date and complete information, reduces medical errors, and simplifies the sharing of patient medical records among healthcare providers involved in the care and treatment process (such as hospitals, laboratories, and insurance companies).
However, there are challenges in implementing cloud-based electronic medical record systems. Outsourcing data means that patients lose control over their medical records, which may jeopardize data integrity due to malicious actions by unauthorized entities. Additionally, since the data in electronic medical record systems contains private information, the exposure or corruption of medical records can impact the physical and mental health of patients. Furthermore, dynamic data operations must be considered for electronic medical record systems to ensure access to the most recent version of medical records. Moreover, if the data in electronic medical record systems are damaged, storing only one copy can permanently lose records. By using the multi-copy feature, data corruption can be fully corrected as long as at least one intact copy remains. Additionally, the multi-writer feature must be utilized for reviewing and working on shared medical records.
In this thesis, a solution for cloud-based electronic medical record systems is proposed to address the mentioned challenges, which simultaneously supports multi-copy and multi-writer features, provides dynamic data operations, and ultimately ensures data privacy and integrity. Existing schemes for cloud-based electronic medical record systems, despite offering the mentioned features, do not simultaneously support both multi-copy and multi-writer features.
