A MULTICORE COMPUTER SYSTEM FOR DESIGN OF STREAM CIPHERS BASED ON RANDOM FEEDBACK SHIFT REGISTERS

Year 2010, Volume: 2 Issue: 7, 1 - 15, 01.09.2010

Borislav Bedzhev Tihomir Trıfonov Nikolay Nıkolov

Abstract

The stream ciphers are an important tool for providing information
security in the present communication and computer networks. Due to this
reason our paper describes a multicore computer system for design of stream
ciphers based on the so - named random feedback shift registers (RFSRs). The
interest to this theme is inspired by the following facts. First, the RFSRs are a
relatively new type of stream ciphers which demonstrate a significant
enhancement of the crypto – resistance in a comparison with the classical
stream ciphers. Second, the studding of the features of the RFSRs is in very
initial stage. Third, the theory of the RFSRs seems to be very hard, which leads
to the necessity RFSRs to be explored mainly by the means of computer models.
The paper is organized as follows. First, the basics of the RFSRs are
recalled. After that, our multicore computer system for design of stream ciphers
based on RFSRs is presented. Finally, the advantages and possible areas of
application of the computer system are discussed.

Keywords

information protecting, stream ciphers, random feedback shift registers, multicore computer system