International Journal of Electrical and Computer Engineering (IJECE) Vol. 15, No. 2, April 2025, pp. 2445~2454 ISSN: 2088-8708, DOI: 10.11591/ijece.v15i2.pp2445-2454  2445 Journal homepage: http://ijece.iaescore.com A secure and cloud-based patient management system using attribute-based encryption algorithm Senthilkumar Kalarani 1 , Mahalingam Shobana 2 , Edamakanti Uma Shankari 3 , Bolly Joshi Praveena 4 , Subramaniam Shanthi 5 , Rathinasabapathy Ramadevi 6 , Rajendar Sandiri 7 1 Department of Computer Science and Engineering, PSG Institute of Technology and Applied Research, Coimbatore, India 2 Department of Computer Science and Engineering, Saveetha Engineering College, Thandalam, India 3 Department of Computer Science and Engineering, Koneru Lakshmaiah Education Foundation, Hyderabad, India 4 Department of Computer Science and Engineering, Matrusri Engineering College, Hyderabad, India 5 Department of Computer Science and Engineering, Kongu Engineering College, Erode, India 6 Department of Biomedical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Thandalam, India 7 Department of Electronics and Communication Engineering, Vardhaman College of Engineering, Hyderabad, India Article Info ABSTRACT Article history: Received Mar 16, 2024 Revised Sep 19, 2024 Accepted Oct 1, 2024 Using attribute-based encryption (ABE), cloud-based patient management systems may be made more secure and efficient. The goal is to provide a scalable encryption infrastructure with dynamic attribute handling and context-aware access control for safe data access. Encryption procedures should directly comply with regulatory criteria to secure healthcare data and ensure data privacy and integrity. Secure attribute issuance and revocation are achieved using advanced key management and real-time auditing and monitoring to identify and react to unauthorized access. To help healthcare providers handle data, user-centric security measures including extensive training and adaptive security procedures are used. The encryption system is implemented and maintained using cost-effective cloud and open-source methodologies to ensure seamless integration and operational effectiveness in healthcare contexts. First, secure patient management system dataset results reveal ABE algorithm encryption. The encrypted values are 8F5D6A..., 7C4A3B..., 6E3B2C..., 9D8A7B..., 5E4D3C.... in the second instance, derived from role-based access control of ABE. The patients are 25-60 years old, have medical codes 101-105, 201-205, and 301-305. For roles from different fields, attribute code is 401-406, level code is 501-505. Keywords: Attribute-based encryption Cloud-based patient management Data privacy Regulatory compliance Scalability This is an open access article under the CC BY-SA license. Corresponding Author: Senthilkumar Kalarani Department of Computer Science and Engineering, PSG Institute of Technology and Applied Research Coimbatore, India Email: kala.rani1971@gmail.com 1. INTRODUCTION Cloud computing has transformed healthcare patient data management by improving accessibility, scalability, and efficiency. Cloud computing also raises data security and privacy concerns. Protecting sensitive patient data is crucial [1]. The attribute-based encryption (ABE) algorithm offers a safe and fine- grained cloud access control architecture that addresses these issues. Security and efficiency are the main goals of attribute-based encryption in cloud-based patient management systems. This method protects sensitive patient data while preserving cloud computing's accessibility and scalability [2]. ABE is used to provide a secure environment that supports the complex and dynamic nature of healthcare data management, guaranteeing that only authorized users with the right credentials may access patient data.