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Nowadays, continuous monitoring of a patient’s healthcare data has become a critical factor in human well‐being. However, with the rapid advancement of wireless technology, doctors and healthcare professionals can monitor the patient’s healthcare data in real time. But to access the confidential patient’s data which is transferred through the open wireless medium, the secure transmission plays an important role. In this work, the privacy and the anonymity of the end‐users (patient/doctor) are preserved using an anonymous blockchain‐based authentication scheme. Moreover, in this work initially, mutual authentication is performed between the end‐users, followed by encryption and decryption of confidential data. In addition, to avoid reauthentication of the patient again during the movement of a patient from one doctor to another, a transfer authentication protocol is performed between the doctors which enhances …