Faez Hassan Ali , Mohammed G. S. Al-Safi، Ahmed Ayyoub Yousif3
Abstract
This paper aims to apply the Bees Algorithm for solving system of equations. The solving
System of Equations may be linear or nonlinear for a number of unknowns. As an application of
System of Equations, we can implement cryptanalysis attack algorithms on stream cipher systems
using plaintext attack (or part from it). We consider the Geffe System (which has nonlinear
combining function) to be our study case, which is depend on set of Linear Feedback Shift
Registers, as a model of stream cipher systems, in the performance of Bees Algorithm by solving
System of Equations for any number of variables of the output of Linear Feedback Shift Registers.
The application divided into two stages, first, constructing System of Equations for the suggested
cryptosystem, and the second, is attacking the variables of System of Equations which they are also
represent the initial key values of the combined of Linear Feedback Shift Registers.
Publication Date
11/22/2017
Publisher
1st Scientific International Conference, College of Science, Al-Nahrain University
Volume No
Issue No
DOI
[DOI: 10.22401/ANJS.00.1.14
Pages
100-108
Keywords
Bees Algorithm, Cryptography, Stream Cipher Systems, Linear Feedback Shift Register, System of Nonlinear Equations.
أ.م.د. محمد غازي صبري الصافي | Assist. Prof. Dr. Mohammed Ghazi Sabri Al-Safiِِِ | 3499