Blockchain-based health care networks use DDMIA (Distributed Dynamic Mutual Identity Authentication) for referrals.

PROJECT TITLE :

DDMIA Distributed Dynamic Mutual Identity Authentication for referrals in Blockchain-based Health Care networks

ABSTRACT:

When patients seek treatment from a variety of medical professionals, the information regarding their medical history is typically shared among those professionals. It is ideally suited for Blockchain-based health information systems due to the widespread distribution of health data and the decentralized organization of the health care system. The authors take into consideration the referral use case. In this scenario, a patient seeks treatment at his primary health center (PHC) and is then referred to a hospital. Authentication is typically carried out through the use of certificates or key cryptography, both of which have the potential to become time-consuming and complicated when there are multiple parties involved in an interaction regarding healthcare. For the referral use case in a Blockchain-based e-health network, the security requirements were defined, and a novel multi-party, mutual patient identity authentication scheme called "Distributed Dynamic Mutual Identity Authentication (DDMIA)" was proposed. Through the use of the DDMIA, the PHC is able to verify the patient's identity at the referred hospital. Elliptic Curve Cryptography was utilized during the planning stages of the DDMIA scheme. It was shown to be safe by assuming the difficulty of the elliptic curve discrete log problem (ECDLP) and the elliptic curve computational Diffie–Hellman problem (ECDH) with CK-Model. Both of these problems were used to validate the safety of the system. Following authentication, the sessions were shown to be safe by means of a formal security analysis which made use of BAN logic. Using the AVISPA tool, the DDMIA scheme was simulated, and the results demonstrated that it is secure against all active attacks. Using the scheme, a patient can have their authenticity validated by multiple parties without having to register with each individual party. It does away with the requirement of utilizing multiple registration centers in addition to digital certificates. As a result, the DDMIA scheme has the potential to be utilized for the implementation of comparable multiparty authentication requirements in Blockchain-based networks.

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