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Browsing Scientific Published Papers by Author "Deforges, Olivier"

Browsing Scientific Published Papers by Author "Deforges, Olivier"

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  • Design and efficient implementation of a chaos-based stream cipher 
    Abutaha, Mohammed; El Assad, Safwan; Queudet, Audrey; Deforges, Olivier (inderscience, 2017-02-08)
    We designed and implemented a stream cipher cryptosystem based on an efficient chaotic generator of finite computing precision (N = 32). The proposed structure of the chaotic generator is formed by a Key-setup, an IVsetup, ...
  • Design and efficient implementation of a chaos-based stream cipher 
    Abutaha, Mohammed; Assad, Safwan El; Queudet, Audrey; Deforges, Olivier (Inderscience Publishers (IEL), 2017)
    We designed and implemented a stream cipher cryptosystem based on an efficient chaotic generator of finite computing precision (N = 32). The proposed structure of the chaotic generator is formed by a Key-setup, an IVsetup, ...
  • Design of a pseudo-chaotic number generator as a random number generator 
    Abutaha, Mohammed; El Assad, Safwan; Jallouli, Ons; Queudet, Audrey; Deforges, Olivier (IEEE, 2016)
    Generating random numbers is essential in many cryptographic applications like key generation, protocols, nonce and also in Internet for choosing TCP sequence numbers for example. We need generators which are able to ...
  • Efficient image encryption and authentication scheme based on chaotic sequences 
    Farajallah, Mousa; Fawaz, Zeinab; El Assad, Safwan; Deforges, Olivier (The 7th International Conference on Emerging Security Information, Systems and Technologies, 2013-08-25)
    Many image encryption algorithms based on chaos have been proposed since 1989. Most of them are slow and use a secret key of encryption/decryption independent of the plain image. We introduce a new fast and secure image ...
  • Fast and secure chaos-based cryptosystem for images 
    Farajallah, Mousa; Deforges, Olivier; El Assad, Safwan (International Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2016-02-01)
    Nonlinear dynamic cryptosystems or chaos-based cryptosystems have been attracting a large amount of research since 1990. The critical aspect of cryptography is to face the growth of communication and to achieve the design ...
  • Hash function based on efficient chaotic neural network 
    Abdoun, Nabil; El Assad, Safwan; Abutaha, Mohammed; Assaf, Rima; Deforges, Olivier; Khalil, Mohamad (IEEE, 2015)
    This paper presents an efficient algorithm for constructing a secure Hash function based on Chaotic Neural Network structure. The proposed Hash function includes two main operations: Generation of Neural Network parameters ...
  • ROI ENCRYPTION FOR THE HEVC CODED VIDEO CONTENTS 
    Farajallah, Mousa; Hamidouche, Wassim; Deforges, Olivier; El Assad, Safwan (2015 IEEE International Conference on Image Processing (ICIP), 2015-09-27)
    In this paper we investigate privacy protection for the HEVC standard based on the tile concept. Tiles in HEVC enable the video to be split into independent rectangular regions. Two solutions are proposed to encrypt the ...
  • Secure hash algorithm based on efficient chaotic neural network 
    Abdoun, Nabil; El Assad, Safwan; Abutaha, Mohammed; Assaf, Rima; Deforges, Olivier; Khalil, Mohamad (IEEE, 2016)
    Secure Hash Algorithm (SHA) is the most popular standard of Cryptographic Hash functions. Several security protocols use SHA to provide message integrity, authentication and digital signature. Nowadays, a new technology ...
  • Selective video encryption using chaotic system in the SHVC extension 
    Hamidouche, Wassim; Farajallah, Mousa; Raulet, Mickael; Deforges, Olivier; El Assad, Safwan (2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2015-04-19)
    In this paper we investigate a selective video encryption in the scalable HEVC extension (SHVC). The SHVC extension encodes the video in several layers corresponding to different spatial and quality representations of the ...

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