A Secure Blockchain-based Prescription Drug Supply in Health-care Systems

Due to existing issues (e.g., complexity/ invisibility on share data for multiple parties, patient's privacy's leak) in the pharmaceutical supply in health-care systems, we proposed the architecture for a prescription drug supply using blockchain. This architecture could provide an efficient authentication among un-trusted parties to prevent an illegal agent from knowing sensitive drug transactions. Besides, dynamic identity is employed to protect users' anonymity and privacy. What's more, secure drug transactions are designed to guarantee share data to be confidentiality, integrity, and non-repudiation by using blockchain. Security analysis shows that our protocol successfully mutually authenticates in addition to being resistant to user impersonation attacks, smart card loss attacks, denial of attacks, database compromised attacks. Furthermore, our protocol can provide reliable service as well as protecting patient's privacy. Performance analysis illustrates our scheme to be competitive in comparison to existing schemes relative to the added security benefits it provides