Privacy or Performance? Towards Secure and Scalable Medical Image Storage and Retrieval Management in the Cloud
In digitalized healthcare, medical images play an important role in diagnosis, containing sensitive as well as essential information for effective patient care. With the growth in medical imaging data, healthcare providers highly depend on third-party cloud-based storage to achieve their increasing storage and retrieval demands. Efficient Content-Based Medical Image Retrieval (CBMIR) is crucial, but privacy and security concerns are inherent with cloud-based solutions. This thesis proposes a sequence of frameworks to address challenges from different perspectives, aiming to provide secure, efficient, and scalable storage and retrieval for medical images. An integrity-centric image encryption scheme is introduced to ensure robust security alongside searchable encrypted hashcodes that fa- cilitate CBMIR. However, achieving a balance between security and retrieval performance remains challenging. To attain this bal- ance, a region-based encryption method is implemented, focusing on sensitive image regions while leveraging fusion-based hashing for effective retrieval. A distributed storage solution is applied for scalability issues, where encrypted images are fragmented into shadow segments, ensuring resilience and data security. The edge computing concept is used to attain better latency while maintain- ing security and scalability. The proposed methods put forward promising advancements for secure medical image storage and re- trieval, providing robust frameworks to support healthcare needs in a cloud environment. These solutions have notable implications for enhancing security, performance, and scalability in digital health- care applications.
Arun Amaithi Rajan is a PhD researcher in the Department of Computer Science and Engineering at the College of Engineering, Guindy, Anna University, Chennai. He holds a master’s degree from the National University of Singapore (NUS), earned in 2020. Prior to his PhD, he worked as a Security Firmware Engineer at Micron, Singapore, for two years, gaining industry experience in embedded security. His research interests lie in cryptography and multimedia security, focusing on secure medical image storage, retrieval, and encryption techniques for cloud environments.
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15:15 15mDoctoral symposium paper | Privacy or Performance? Towards Secure and Scalable Medical Image Storage and Retrieval Management in the Cloud Doctoral Symposium Arun Amaithi Rajan College of Engineering Guindy, Anna University, Chennai |