NOCAS : A Nonlinear Cellular Automata Based Stream Cipher - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Discrete Mathematics and Theoretical Computer Science Year : 2011

NOCAS : A Nonlinear Cellular Automata Based Stream Cipher

Abstract

LFSR and NFSR are the basic building blocks in almost all the state of the art stream ciphers like Trivium and Grain-128. However, a number of attacks are mounted on these type of ciphers. Cellular Automata (CA) has recently been chosen as a suitable structure for crypto-primitives. In this work, a stream cipher is presented based on hybrid CA. The stream cipher takes 128 bit key and 128 bit initialization vector (IV) as input. It is designed to produce $\mathrm{2^{128}}$ random keystream bits and initialization phase is made faster 4 times than that of Grain-128. We also analyze the cryptographic strength of this cipher. Finally, the proposed cipher is shown to be resistant against known existing attacks.
Fichier principal
Vignette du fichier
dmAP0110.pdf (454.52 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

hal-01196137 , version 1 (09-09-2015)

Identifiers

Cite

Sandip Karmakar, Dipanwita Roy Chowdhury. NOCAS : A Nonlinear Cellular Automata Based Stream Cipher. 17th International Workshop on Celular Automata and Discrete Complex Systems, 2011, Santiago, Chile. pp.135-146, ⟨10.46298/dmtcs.2970⟩. ⟨hal-01196137⟩

Collections

INSMI TDS-MACS
322 View
1117 Download

Altmetric

Share

Gmail Facebook X LinkedIn More