A new cipher based on feistel structure and chaotic maps
Other Title(s)
تصميم شفرة جديدة بالاعتماد على هيكلية فستل و الدوال الفوضوية
Joint Authors
al-Bahrani, Ikhlas Abbas
Jawad, Riyam Nuri
Source
Issue
Vol. 16, Issue 1 (sup) (31 Mar. 2019), pp.270-280, 11 p.
Publisher
University of Baghdad College of Science for Women
Publication Date
2019-03-31
Country of Publication
Iraq
No. of Pages
11
Main Subjects
Topics
Abstract EN
Chaotic systems have been proved to be useful and effective for cryptography.
Through this work, a new Feistel cipher depend upon chaos systems and Feistel network structure with dynamic secret key size according to the message size have been proposed.
Compared with the classical traditional ciphers like Feistel-based structure ciphers, Data Encryption Standards (DES), is the common example of Feistel-based ciphers, the process of confusion and diffusion, will contains the dynamical permutation choice boxes, dynamical substitution choice boxes, which will be generated once and hence, considered static, While using chaotic maps, in the suggested system, called Chaotic-based Proposed Feistel Cipher System (CPFCS), we made the confusion and diffusion in dynamical behavior based on Standard and Lorenz maps.
The first is used for substitution, and the second one for permutation operations .A proposed cryptographic system uses the same work (the same way) for both enciphering and deciphering.
The proposed cipher operates on more than 500 bytes (4000-bit) readable text blocks by six round computing.
Within the basic operator of the cipher, i.e., in the function of the round F, a dynamical lookup table 2D standard map system is used to enhance the complexity and diffusion of the unreadable text.
Also, a 3D Logistic map used for key sequence generator and chaos based dynamical Initial Permutation (dynamical IP) are used to increase the diffusion and confusion.
Three different image sizes and three different text length were implemented in CPFCS.
The results of the proposed system and security tests improve the applicability of PFCS in the data protection and security.
American Psychological Association (APA)
al-Bahrani, Ikhlas Abbas& Jawad, Riyam Nuri. 2019. A new cipher based on feistel structure and chaotic maps. Baghdad Science Journal،Vol. 16, no. 1 (sup), pp.270-280.
https://search.emarefa.net/detail/BIM-880885
Modern Language Association (MLA)
al-Bahrani, Ikhlas Abbas& Jawad, Riyam Nuri. A new cipher based on feistel structure and chaotic maps. Baghdad Science Journal Vol. 16, no. 1 (Supplement) (2019), pp.270-280.
https://search.emarefa.net/detail/BIM-880885
American Medical Association (AMA)
al-Bahrani, Ikhlas Abbas& Jawad, Riyam Nuri. A new cipher based on feistel structure and chaotic maps. Baghdad Science Journal. 2019. Vol. 16, no. 1 (sup), pp.270-280.
https://search.emarefa.net/detail/BIM-880885
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 279-280
Record ID
BIM-880885