This work presents a quantum key agreement (QKA) based on the BB84 protocol. The newly
proposed QKA protocol enables two involved parties to jointly establish a shared secret key …

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 …

Many group communications require a security infrastructure that ensures multiple levels of
access control for group members. While most existing group key management schemes are …

A robust and efficient quantum key agreement (QKA) protocol is presented with
decoherence-free (DF) states and single-particle measurements. Compared with all the …

In secure group communications, the time cost associated with key updates in the events of
member join and departure is an important aspect of quality of service, especially in large …

Mobile ad hoc networks have been used in many application areas such as sensors, file
sharing and vehicle-to-vehicle communications. Providing secure communications among …

Group key management in cloud computing has become a trending topic in recent decades.
This paper deals with the implementation of clustered structure based on centralized key …

Wireless ad hoc networks are gaining popularity as these networks are self organizing
without requiring fixed infrastructure such as servers or access points. Nodes in wireless ad …

The problem of efficiently and securely broadcasting to a remote cooperative group occurs
in many newly emerging networks. A major challenge in devising such systems is to …

Although a contributory group key agreement is a promising solution to achieve access
control in collaborative and dynamic group applications, the existing schemes have not …