Implementation of a Stream Cipher Based on Bernoulli's Map

Implementation of a Stream Cipher Based on Bernoulli's Map

A stream cipher was implemented on a FPGA. The keystream, for some authors the most important element, was developed using an algorithm based on Bernoulli’s chaotic map. When dynamic systems are digitally implemented, a normal degradation appears and disturbs their behavior; for such reason, a mechanism was needed. The proposed mechanism gives a solution for degradation issue and its implementa...

A Stream Cipher Based on Chaotic Permutations

In this paper we introduce a word-based stream cipher consisting of a chaotic part operating as a chaotic permutation and a linear part, both of which designed on a finite field. We will show that this system can operate in both synchronized and self-synchronized modes. More specifically, we show that in the self-synchronized mode the stream cipher has a receiver operating as an unknown input o...

Multi-Map Orbit Hopping Chaotic Stream Cipher

Abstract In this paper we propose a multi-map orbit hopping chaotic stream cipher that utilizes the idea of spread spectrum mechanism for secure digital communications and fundamental chaos characteristics of mixing, unpredictable, and extremely sensitive to initial conditions. The design, key and subkeys, and detail implementation of the system are addressed. A variable number of well studied ...

Efficient Implementation of "Large" Stream Cipher Systems

Low Power Implementation of Trivium Stream Cipher

This paper describes a low power hardware implementation of the Trivium stream cipher based on shift register parallelization techniques. The design was simulated with Modelsim, and synthesized with Synopsys in three CMOS technologies with different gate lengths: 180nm, 130nm and 90 nm. The aim of this paper is to evaluate the suitability of this technique and compare the power consumption and ...