A Cryptosystem Using Expansion of Chaotic Map
نویسندگان
چکیده
A chaotic map has sensitivity to a change in initial conditions and parameters, and a long-term forecast becomes impossible by iterations of a chaotic map. These features look similar to the properties of the cryptology. For that reason, it is effective to use chaotic maps for cryptosystems. In this research, we propose a cryptosystem using iterations of a chaotic map. This cryptosystem uses expansion map for encryption and decryption. This cryptosystem is a symmetrickey cryptography that has a public key. We investigate the vulnerability of this cryptosystem.
منابع مشابه
Improvement of a Cryptosystem Using Two Chaotic Maps
A chaotic map has various features. A chaotic map has sensitivity to a change in initial conditions and parameters, and a long-term forecast becomes impossible by the iterations of a chaotic map. These features looks similar to the properties of the cryptology. For that reason, it is effective to use chaotic maps for cryptosystems. The chaotic cryptosystem is researched as an application of cha...
متن کاملA New Chaotic Cryptosystem Based on Multiple One-dimensional Chaotic Maps
In this paper, the authors propose a new chaotic block cryptosystem based on multiple one-dimensional chaotic maps. In the proposed cryptosystem, the authors establish map-to-task relations between the multiple chaotic maps and the tasks, which must be performed in the encryption rounds. The encryption process is based on these map-to-task relations. The authors enhance the security of the cryp...
متن کاملA More Secure Chaos Based Encryption System with High Compression Capability
The Baptista cryptosystem uses the logistic map to generate chaotic sequence. The encryption process of a given plaintext character consists of iterating the chaotic map until the state reaches the subinterval assigned to that symbol. The cipher text corresponding to the plaintext symbol is the number of iterations in the chaotic map. We propose a method to enhance the security and compression ...
متن کاملChaotic Map based Block Encryption
Number of cryptosystems based on chaos has been proposed, in recent years. Tao Xiang , Kwok-wo Wong, Xiaofeng Liao in 2008 proposed an improved scheme by using a symmetric key block cipher algorithm in which one-dimensional chaotic maps are used, in order to obtain chaotic sequences with better cryptographic feature. In this system, an encryption /decryption scheme was proposed, a cryptographic...
متن کاملA Cryptosystem Based on Iterations of Chaotic Map with Variable Parameter
A chaotic map has sensitivity to changes in the initial conditions and parameters, and a long-term forecast becomes impossible by iterating a chaotic map. These features look similar to the features of cryptology. For this reason, it is effective to use chaotic maps for cryptosystems. In this research, we investigate features of the modified cut map when the parameters αi are changed. We use th...
متن کامل