ISSN (O) 2278-1021, ISSN (P) 2319-5940 IJARCCE International Journal of Advanced Research in Computer and Communication Engineering ISO 3297:2007 CertifiedImpact Factor 8.102Vol. 12, Issue 4, April 2023 DOI: 10.17148/IJARCCE.2023.12425 © IJARCCE This work is licensed under a Creative Commons Attribution 4.0 International License 131 QR based Hospital Health Card Darshan N 1 , Felix Furtado 2 , Unnati Pandya 3 , Gopinath S 4 , Pankaj Kumar Yadav 5 , Dr.Renu Rathi 6 , J. Sheeba Selvapattu 7 Student, Department of CS & IT, Jain (Deemed-to-be) University, Bengaluru, India 1-5 Professor, School of Commerce, Jain (Deemed-to-be) University, Bengaluru, India 6 Research Scholar, Jain (Deemed-to-be) University, Bengaluru, India 7 Abstract: The proposed web application is designed to provide a platform for patients and doctors to interact efficiently and effectively. The patient panel includes several features that enable patients to manage their medical data, book hospital appointments related to their health issues, read blogs on their diseases, purchase online medicines through the pharmacy, and use QR codes to access their medical information. The doctor panel, on the other hand, enables doctors to manage their appointments with patients, retrieve patient data through QR code scanning, and check the contents of medicines prescribed to patients. The application is built on modern web development frameworks such as ReactJS, NodeJS, and MongoDB, which provide a secure and scalable environment for data management. The proposed methodology includes a development process that incorporates rigorous testing and quality control to ensure that the application meets the highest standards of usability and security. The technology stack includes modern web development frameworks that offer the flexibility and scalability necessary to accommodate future expansion and growth. The potential results and outputs of the proposed web application are significant. By enabling patients to manage their medical data and access healthcare services online, the application can enhance patient engagement and satisfaction. Doctors can also benefit from the application by managing their appointments and accessing patient data quickly and efficiently. The web application has the potential to reduce healthcare costs by enabling patients to access healthcare services remotely, reducing the need for physical consultations. The application can also improve patient outcomes by providing patients with easy access to healthcare services, enabling them to manage their health more effectively. Keywords: QR code, Health Card, Encryption, Cryptography, Decryption. I. INTRODUCTION The proposed web application is designed to cater to the needs of both patients and doctors in the healthcare industry. The patient panel of the application provides a range of features, including the ability to manage medical data, book appointments, read disease-specific blogs, purchase online medicines, and use QR codes to access medical information. These features allow patients to take control of their healthcare needs and make informed decisions regarding their health. The doctor panel, on the other hand, provides features such as appointment management, patient data retrieval through QR code scanning, and medicine content checking. The application enables doctors to manage their appointments with patients effectively, retrieve patient data quickly and efficiently, and ensure that the medicines they prescribe contain the right ingredients in the right doses. By providing a platform for patient-doctor interactions, the proposed web application has the potential to revolutionize the healthcare industry. The application enables patients to access healthcare services remotely, reducing the need for physical consultations, and providing a more convenient and cost-effective way of managing their health. Additionally, the application can improve patient outcomes by providing patients with easy access to healthcare services and enabling them to manage their health more effectively. For doctors, the proposed web application can enhance patient care by providing them with a comprehensive patient profile, including medical history, treatment plans, and medication details. This information can help doctors make informed decisions regarding patient care, leading to better health outcomes. In summary, the proposed web application is an innovative solution that caters to the needs of both patients and doctors in the healthcare industry. By providing a platform for efficient and effective patient-doctor interactions, the application can enhance patient engagement, reduce healthcare costs, and improve patient outcomes. The application's features and functionalities are designed to provide a secure and scalable environment for data management and ensure its usability and accessibility to a wide range of users.