With the increasing number of emerging robust networks, the challenges to design new
security protocols and techniques are never ending. With the enlargement of 5G paradigm …

Group signatures are a leading competing signature technique with a substantial amount of
research. With group settings, group signatures provide user anonymity. Any group member …

Abstract Identity-based (ID-based) encryption is a very important cryptographic primitive. It is
advantageous over the conventional public key cryptosystems due to direct and easy …

In this paper, we propose two cryptosystems based on group rings and existing
cryptosystem. First one is Elliptic ElGamal type group ring public key cryptosystem whose …

In this paper, we propose two novel public-key cryptosystems by combining the well-known
NTRU public-key cryptosystem with the algebraic structure of group rings. We discuss the …

Network communications are expanding rapidly in many fields, including
telecommunications, the Internet of Things, space, consumer electronics, and the military …

Distributed Ledger Technologies (DLT), notably blockchain, have advanced significantly,
finding applications in various domains, including education, for enhanced transparency …

In this paper, we propose three digital signature schemes based on the algebraic structure
of group ring. The first scheme is a deterministic signature scheme, the second scheme is a …

ElGamal Cryptosystem (EC) is a non-deterministic scheme which produces different outputs
for the same input, making the cryptosystem more secure. On the other hand, the efficiency …

The concept of undeniable signature scheme was proposed by Chaum and Antwerpen in
1989. In this scheme, the signature can only be verified by the verifier with the co-operation …