  This paper introduces a reliable health care system for diabetic patients
based on the Internet of Things technology. A diabetic health care system with
a hardware implementation is presented. The proposed work employs Alaris 8100
infusion pump, Keil LPC-1768 board, and IoT-cloud to monitor the diabetic
patients. The security of diabetic data over the cloud and the communication
channel between health care system components are considered as part of the
main contributions of this work. Moreover, an easy way to control and monitor
the diabetic insulin pump is implemented. The \mbox{patient\textquotesingle s}
records are stored in the cloud using the Keil board that is connected to the
infusion pump. The reliability of the proposed scheme is accomplished by
testing the system for five performance characteristics (availability,
confidentiality, integrity, authentication, and authorization). The Kiel board
is embedded with Ethernet port and Cortex-M3 micro-controller that controls the
insulin infusion pump. The secure hash algorithm and secure socket shell are
employed to achieve the reliability components of the proposed scheme. The
results show that the proposed design is reliable, secure and authentic
according to different test experiments and a case study of the Markov model.
Moreover, a 99.3\% availability probability has been achieved after analyzing
the case study.
