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- Title
EFFICIENT CHAOS-BASED CRYPTOSYSTEM FOR REAL TIME APPLICATIONS.
- Authors
De Dieu NKAPKOP, Jean; EFFA, Joseph Yves; BORDA, Monica; CIPRIAN, Anton; BITJOKA, Laurent; MOHAMADOU, Alidou
- Abstract
Nowadays depending on the application domain, the need to protect images against unauthorized users has become a challenge. We previously developed and implemented using Matlab software, a new image encryption algorithm that uses the permutation-diffusion structure. The permutation step was used to shuffle the positions of the pixels within the image, while the diffusion process was employed to improve the security by masking all the pixel values of the image. In this paper we present an implementation of this chaos-based algorithm under Qt environment using the C/C++ programming language to show the practical aspects of its implementation. This implementation also provides the opportunity of selecting three encryption stages to encrypt and decrypt any type of input images. Thus, this allows us to see that the permutation-diffusion structure is required for a secure encryption. In order to prove the efficiency of this algorithm a comparison of the encryption time has been made with the other similar algorithms implemented on Matlab or C/C++. The results show that the proposed approach performs faster with higher security level for the encryption task.
- Publication
Acta Technica Napocensis. Electronica-Telecomunicatii, 2016, Vol 57, Issue 4, p5
- ISSN
1221-6542
- Publication type
Academic Journal