Chakravarthy D Gowtham, Gopi R, Murugan Sivaram, Joseph Emerson Raja
Faculty of Computer Science & Engineering, Sri Eshwar College of Engineering, Coimbatore, Tamil Nadu, 641202, India.
Faculty of Computer Science & Engineering, Dhanalakshmi Srinivasan Engineering College, Perambalur, Tamil Nadu, 621212, India.
Sci Rep. 2025 Aug 19;15(1):30379. doi: 10.1038/s41598-025-13831-5.
Confidentiality and access control are essential to protect sensitive data, prevent cyber threats, ensure compliance, and avoid risks like identity theft. Hence, a framework towards secure patient Data access using Hybrid Integrated Hashing Method is introduced to ensure patient confidentiality and efficient data access in healthcare systems. Unlike conventional solutions that rely solely on standard blockchain and secure hash algorithm 256 for data protection, this proposed method integrates a multi-layer hybrid hashing approach combining dynamic hash chaining with temporal entropy encoding, making hash collisions virtually infeasible. A selective data compression mechanism is also embedded to maintain performance while preserving cryptographic strength. Additionally, the system employs role-based decentralized access control, enforced through smart contracts, enabling real-time permission verification and immutable audit trails. A simulated blockchain environment evaluates the proposed method's resilience against ransomware, hash collision, and data manipulation attacks. By employing a standard secure hash algorithm 256 hashing without compression or access-layer optimization, experimental findings show 27% reduced storage usage and 35% quicker data retrieval than typical blockchain-based electronic health record systems. The system shows robust resistance to illegal access compared to traditional role-based access control systems.
保密性和访问控制对于保护敏感数据、防范网络威胁、确保合规性以及避免身份盗窃等风险至关重要。因此，引入了一种使用混合集成哈希方法实现安全患者数据访问的框架，以确保医疗系统中患者的保密性和高效的数据访问。与仅依靠标准区块链和安全哈希算法256进行数据保护的传统解决方案不同，该提议的方法集成了一种多层混合哈希方法，将动态哈希链与时间熵编码相结合，使得哈希冲突几乎不可行。还嵌入了一种选择性数据压缩机制，以在保持加密强度的同时维持性能。此外，该系统采用基于角色的分散式访问控制，通过智能合约强制执行，实现实时权限验证和不可变的审计跟踪。一个模拟的区块链环境评估了该提议方法对勒索软件、哈希冲突和数据操纵攻击的抵御能力。通过采用无压缩或访问层优化的标准安全哈希算法256进行哈希处理，实验结果表明，与典型的基于区块链的电子健康记录系统相比，存储使用量减少了27%，数据检索速度快了35%。与传统的基于角色的访问控制系统相比，该系统对非法访问具有强大的抵抗力。
