Recent Publications
BlooDChain is a novel blockchain-enabled privacy-preserving blood donation platform that addresses critical challenges in donor-recipient coordination while maintaining robust privacy protection. The system integrates a multi-layered security architecture combining blockchain immutability, steganographic data concealment, hardware-based encryption, and zero-knowledge anonymous matching protocols to provide unprecedented donor privacy protection. BlooDChain introduces a three-tier privacy model accommodating varying donor risk profiles, representing a significant advancement over one-sizefits-all approaches. The anonymous matching protocol enables compatibility verification without identity disclosure during matching, addressing critical gaps in existing platforms, particularly valuable for rare blood type donors facing targeted risks. An ethical gift-based incentive mechanism encourages participation while maintaining non-commercial principles aligned with healthcare ethics. Hardware-based physical encryption keys provide additional security resistant to purely digital attacks, demonstrating a defense-indepth approach. Comprehensive security analysis demonstrates resistance to diverse attack vectors, including identity disclosure, data extraction, cryptographic attacks, smart contract exploits, consensus attacks, and hardware compromises. Performance evaluation shows acceptable throughput (~358 TPS), low matching latency (~200 ms), and reasonable registration times (~3-5 seconds) suitable for blood donation coordination. BlooDChain advances state-of-the-art through the first comprehensive integration of blockchain, steganography, and hardware encryption for blood donation, a novel zero-knowledge matching protocol, an ethical incentive mechanism, a multi-tier privacy framework, and a practical implementation roadmap. The platform demonstrates the potential for advanced cryptographic techniques and blockchain technology to create blood donation systems simultaneously achieving high privacy, strong security, efficient coordination, and ethical incentive alignment.