With the popularity of group data sharing in public cloud computing, the privacy and security
of group sharing data have become two major issues. The cloud provider cannot be treated …

Drones are imperative for the 5G architecture as a mobile source to expand network
coverage and support seamless services, particularly through enabling device-to-device …

Many cyber–physical systems (CPSs) are today semi-autonomous and powerful enough to
perform advanced tasks on their own. This means they can also act as representatives of …

5G is the beginning of a new era in cellular communication, bringing up a highly connected
network with the incorporation of the Internet of Things (IoT). To flexibly operate all the IoT …

Multi-proxy signature is a scheme that an original signer authorizes a proxy group as his
proxy agent and later only the cooperation of all proxy signers in the proxy group could sign …

Electronic communication and financial transactions have assumed massive proportions
today. But they come with high risks. Achieving cyber security has become a top priority, and …

In this paper, we propose a new security protocol for proxy signature by a hierarchy of proxy
signers. In this protocol, the original signer delegates his/her signing capability to a …

Next Generation cellular networks are expected to offer better service quality, secure and
reliable service provisioning, and more cooperative operation even in unexpected stressful …

In this article, we proposed a batch verification scheme for multiple proxy signatures to
reduce the proxy signature verification time. The proposed scheme is not only efficient …

Unmanned Aerial Vehicles (UAVs), or drones, are increasingly being utilized for public
safety circumstances including post-disaster recovery of destroyed communication …