Sharwan K. Tiwari

collaborators

3 papers

cs.CR2021

INRU: A Quasigroup Based Lightweight Block Cipher

Sharwan K. Tiwari, Ambrish Awasthi, Sucheta Chkrabarti +1

In this paper, we propose a quasigroup based block cipher design. The round functions of the encryption and decryption algorithms use quasigroup based string transformations. We sh…

math.NT2021

Primitive Normal Values of Rational Functions over Finite Fields

Avnish K. Sharma, Mamta Rani, Sharwan K. Tiwari

In this paper, we consider rational functions $f$ with some minor restrictions over the finite field $F_{q^{n}},$ where $q = p^{k}$ for some prime $p$ and positive integer $k$ .…

math.CO2021

Algebraic Properties of Subquasigroups and Construction of Cryptographically Suitable Finite Quasigroups

V. A. Artamonov, Sucheta Chakrabarti, Sharwan K. Tiwari +1

In this paper, we identify many important properties and develop criteria for the existence of subquasigroups in finite quasigroups. Based on these results, we propose an effective…