Efficient implementation for QUAD stream cipher with GPUs

Efficient implementation for QUAD stream cipher with GPUs

QUAD stream cipher uses multivariate polynomial systems. It has provable security based on the computational hardness assumption. More specifically, the security of QUAD depends on hardness of solving non-linear multivariate systems over a finite field, and it is known as an NP-complete problem. However, QUAD is slower than other stream ciphers, and an efficient implementation, which has a redu...

Efficient Implementation of "Large" Stream Cipher Systems

QUAD: A Practical Stream Cipher with Provable Security

We introduce a practical synchronous stream cipher with provable security named QUAD. The cipher relies on the iteration of a multivariate quadratic system of m equations in n < m unknowns over a finite field. The security of QUAD is provably reducible to the conjectured intractability of the MQ problem, namely solving a multivariate system of quadratic equations.

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 ...

2SC: An Efficient Code-Based Stream Cipher

In this article, we present a new code-based stream cipher called 2SC, based on the sponge construction. The security of the keystream generation of 2SC is reducible to the conjectured intractability of the Syndrome Decoding (SD) problem, which is believed to be hard in the average case. Our stream cipher compares favorably with other provably secure stream ciphers such as QUAD and SYND in term...