Cloud computing has become prevalent due to its nature of massive storage and vast
computing capabilities. Ensuring a secure data sharing is critical to cloud applications …

Data is central to the Internet of Things (IoT) ecosystem. With billions of devices connected,
most of the current IoT systems are using centralized cloud-based data sharing systems …

Data is central to the Internet of Things IoT ecosystem. Most of the current IoT systems are
using centralized cloud-based data sharing systems. Involvement of such third-party service …

This paper proposes Privacy Preserving Identity-Based Broadcast Proxy Re-encryption
(P2B)-a scheme to provide privacy preserving in identity-based broadcast proxy re …

Fog computing is a promising paradigm that can mitigate the heavy burden on cloud-central
processing of the vast amount of IoT data. Although fog computing has the advantages of …

The wireless body area network (WBAN) provides users with real-time medical services.
Meanwhile, the cloud technology provides greater storage space and computing power for …

Cloud computing with massive storage and computing capabilities has become widespread
in actual applications. It is critical to ensure secure data sharing in cloud-based applications …

Since Cloud Service Provider is a semi-trusted party in cloud storage, to protect data from
being disclosed, users' data are encrypted before being uploaded to a cloud server …

Key-aggregate cryptosystems (KAC) have attracted significant attention from the research
community because of their elegance and efficiency in enforcing predefined access control …

The homomorphic proxy re-encryption scheme combines the characteristics of a
homomorphic encryption scheme and proxy re-encryption scheme. The proxy can not only …