This paper presents a performance study and analysis of two popular public-key
cryptosystems: RSA with its two variants, and ECC (Elliptic Curve Cryptography). RSA is …

The rapid increase in health care data breaches with the existing centralized systems
emphasizes a decentralized health care system while ensuring reliability, privacy, security …

A group key agreement protocol allows a set of users to establish a common session key
over an open network. A dynamic contributory group key agreement (DCGKA) protocol …

Most group key agreement protocols make use of modular exponential operations which
require extensive computing resources in devices. Thus, they are unsuitable for resource …

The applications like secure conferences, Pay-TV system etc. are usually requires a
common key (group key) shared among the participants. The applications in which the …

Conference key agreement (CKA) is essential for securing communication in group-oriented
scenarios like multi-party messaging and collaborative environments. While elliptic curve …

We show that Xu et al.'s authentication and key agreement scheme [IEEE Trans. Ind.
Informatics, 18 (10), 7118-7127, 2022] fails to realize its design targets.(1) It confused some …

Zhu proposed a provable privacy-protection system which could achieve two kinds of
privacy protection and switch between them optionally by users. He claimed his scheme …

Group key establishment is a fundamental aspect of secure communication in various
network scenarios, ranging from collaborative environments to distributed systems …

Contributory group key management schemes are popularly used for dynamic peer group
communications in collaborative environments. Previous contributory group key …