A Novel Block Cipher Based on Chaotic Maps

2008 ◽  
Author(s):  
Shujiang Xua ◽  
Jizhi Wang ◽  
Suxiang Yang
Keyword(s):  
Block Cipher ◽  
Chaotic Maps

scholarly journals Proposed A Permutation and Substitution Methods of Serpent Block Cipher

2019 ◽  
Vol 32 (2) ◽  
pp. 131 ◽  
Author(s):  
Intisar Abid Yousif
Keyword(s):  
Block Cipher ◽  
Chaotic Maps ◽  
Data Block ◽  
Key Generation ◽  
Similar Calculation ◽  
Original Algorithm ◽  
Dynamic Methods ◽  
Encrypt Data ◽  
Time Usage

     Block cipher technique is one of cryptography techniques to encrypt data block by block. The Serpent is one of AES candidates. It encrypts a 128-bit block by using 32 rounds of a similar calculation utilizing permutations and substitutions. Since the permutations and substitutions of it are static. Then this paper proposes dynamic methods for permutation, substitution and key generation based on chaotic maps to get more security. The proposed methods are analyzed and the results showed that they were able to exceed the weakness resulting from the use of static permutations and substitutions boxes in the original algorithm and also can reduce number of rounds and time usage compared with a classical Serpent block cipher algorithm

Block cipher using 1D and 2D chaotic maps

2010 ◽  
Vol 2 (3) ◽  
pp. 244 ◽  
Author(s):  
Narendra K. Pareek ◽  
Vinod Patidar ◽  
Krishan K. Sud
Keyword(s):  
Block Cipher ◽  
Chaotic Maps

scholarly journals Cryptanalysis and Improvement of a Block Cipher Based on Multiple Chaotic Systems

2010 ◽  
Vol 2010 ◽  
pp. 1-14 ◽  
Author(s):  
Jun He ◽  
Haifeng Qian ◽  
Yuan Zhou ◽  
Zhibin Li
Keyword(s):  
Chaotic Systems ◽  
Block Cipher ◽  
Chaotic Maps ◽  
Encryption Algorithm ◽  
Secret Key ◽  
Random Sequences ◽  
One Dimensional ◽  
Multiple Chaotic Systems

Wang and Yu proposed a block cipher scheme based on dynamic sequences generated by multiple chaotic systems, which overcomes the problem of periodical degradation on random sequences due to computational precision. Their scheme has a feature that a plaintext is encrypted by a keystream created from several one-dimensional chaotic maps. However, this feature results in some weaknesses of the encryption algorithm. We show three kinds of attacks in this paper, through which one can recover the plaintext from a given ciphertext without the secret key. We also present an improvement on their scheme, which prevents the three attacks mentioned above. Security of the enhanced cipher is presented and analyzed, which shows that our improved scheme is secure under the current attacks.

A novel cryptosystem based on abstract automata and Latin cubes

2015 ◽  
Vol 52 (2) ◽  
pp. 221-232
Author(s):  
Pál Dömösi ◽  
Géza Horváth
Keyword(s):  
Block Cipher ◽  
Finite Automata ◽  
Theoretical Background ◽  
Point Of View ◽  
Theoretical Point ◽  
Transition Matrices ◽  
Encryption And Decryption ◽  
Secret Keys ◽  
Automata Network ◽  
Fully Functioning

In this paper we introduce a novel block cipher based on the composition of abstract finite automata and Latin cubes. For information encryption and decryption the apparatus uses the same secret keys, which consist of key-automata based on composition of abstract finite automata such that the transition matrices of the component automata form Latin cubes. The aim of the paper is to show the essence of our algorithms not only for specialists working in compositions of abstract automata but also for all researchers interested in cryptosystems. Therefore, automata theoretical background of our results is not emphasized. The introduced cryptosystem is important also from a theoretical point of view, because it is the first fully functioning block cipher based on automata network.

A Chaos-Based Approach for Correcting the Security Level of a Block Cipher Algorithm

2016 ◽  
Vol 11 (2) ◽  
pp. 92
Author(s):  
Fatma Zayen Sbiaa ◽  
Medien Zeghid ◽  
Sonia Kotel ◽  
Rached Tourki ◽  
Mohsen Machhout ◽  
...  
Keyword(s):  
Block Cipher ◽  
Security Level

Scan-Based Side-Channel Attack on the Camellia Block Cipher Using Scan Signatures

2015 ◽  
Vol E98.A (12) ◽  
pp. 2547-2555 ◽  
Author(s):  
Huiqian JIANG ◽  
Mika FUJISHIRO ◽  
Hirokazu KODERA ◽  
Masao YANAGISAWA ◽  
Nozomu TOGAWA
Keyword(s):  
Block Cipher ◽  
Side Channel ◽  
Side Channel Attack

Block Cipher Design after AES and the New Cipher Nahrainfish

2007 ◽  
Vol 1 (4) ◽  
pp. 46-61
Author(s):  
Sufyan T. Faraj Al-janabi ◽  
Keyword(s):  
Block Cipher

DATA SECURITY USING RC6 CIPHER ALGORITHM AS AN IMPLEMENTATION OF PRIVACY PRINCIPLE IN THE UU-ITE PERSPECTIVE AND ISLAMIC LAW

2020 ◽  
Author(s):  
Dedy Agung Prabowo ◽  
Ujang Juhardi ◽  
Bambang Agus Herlambang
Keyword(s):  
Information Technology ◽  
Information System ◽  
Computer Technology ◽  
Data Security ◽  
Block Cipher ◽  
Islamic Law ◽  
Important Thing ◽  
Is Security ◽  
Privacy Principle ◽  
System Data

Recently, Information technology develops rapidly. It is possible for us to get some informationquickly, properly and efficiently. The information technology also has many advantages fo r people. Theneed for information is increasing according to the need of its users. This proves that informationtechnology can make our job easier and it can help us to save our time particularly for the job thatrelated to information and data processin g. With the increasing use of computer technology today, italso brings up some problems. One of them is security and confidentiality problem which is animportant aspect in an information system. Data security is an important thing in maintaining theconf identiality of particular data that only can be known by those who have right. RC6 is a symmetrickey algorithm which encrypts 128 bit plaintext blocks to 128 bit ciphertext blocks. The encryptionprocess involves four operations which is the critical arit hmetic operation of this block cipher. As alegal state, Indonesia has issued a regulation in a form of laws governing information and electronictransaction or commonly referred to UU ITE. Besides, Islam is a religion that comprehensively givesthe guidan ce of life for people. Islam has provided guidance in the various fields ranging from social,politics, economics and various other fields.

Sign in / Sign up

Export Citation Format

Share Document