Randomness Evaluation and Hardware Implementation of Nonadditive CA-Based Stream Cipher

TL;DR

This paper reviews CA-based pseudorandom number generators, demonstrating their high-quality randomness, hardware efficiency, and practical application in real-time FPGA video encryption systems.

Contribution

It introduces a CA-based stream cipher implemented in FPGA that achieves high encryption speed and passes rigorous statistical randomness tests.

Findings

The CA-based PRNG passes all NIST statistical tests.

The FPGA implementation enables real-time video encryption.

The CA-based stream cipher is hardware-efficient and high-speed.

Abstract

We shall review the cellular automaton(CA)-based pseudorandom-number generators (PRNGs), and show that one of these PRNGs can generate high-quality random numbers which can pass all of the statistical tests provided by the National Institute of Standards and Technology (NIST). A CA is suitable for hardware implementation. We demonstrate that the CA-based stream cipher, which is implemented in the field-programmable gate arrays (FPGA), has a high encryption speed in a real-time video encryption and decryption system.