  With recent elevated adaptation of cloud services in almost every major
public sector, the health sector emerges as a vulnerable segment, particularly
in data exchange of sensitive Health records, as determining the retention,
exchange, and efficient use of patient records without jeopardizing patient
privacy, particularly on mobile-applications remains an area to expand. In the
existing scenarios of cloud-mobile services, several vulnerabilities can be
found including trapping of data within a single cloud-service-provider and
loss of resource control being the significant ones. In this study, we have
suggested a CPABE and OAuth2.0 based framework for efficient access-control and
authorization respectively to improve the practicality of EHR sharing across a
single client-application. In addition to solving issues like practicality,
data entrapment, and resource control loss, the suggested framework also aims
to provide two significant functionalities simultaneously, the specific
operation of client application itself, and straightforward access of data to
institutions, governments, and organizations seeking delicate EHRs. Our
implementation of the suggested framework along with its analytical comparison
signifies its potential in terms of efficient performance and minimal latency
as this study would have a considerable impact on the recent literature as it
intends to bridge the pragmatic deficit in CPABE-based EHR services.
