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Yazar: Belghith, Safya Mdimegh × Konu: Algorithm ×

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    Cryptanalysis of a multi-chaotic systems based image cryptosystem
    (Elsevier Science BV, 2010-01-15) Solak, Ercan; Rhouma, Rhouma; Belghith, Safya Mdimegh
    This paper is a cryptanalysis of a recently proposed multi-chaotic systems based image cryptosystem. The cryptosystem is composed of two shuffling stages parameterized by chaotically generated sequences. We propose and implement two different attacks which completely break this encryption scheme.
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    Cryptanalysis of a new substitution-diffusion based image cipher
    (Elsevier Science BV, 2010-07) Rhouma, Rhouma; Solak, Ercan; Belghith, Safya Mdimegh
    This paper introduces two different types of attacks on a recently proposed cryptosystem based on chaotic standard and logistic maps. In the two attacks, only a pair of (plaintext/ciphertext) was needed to totally break the cryptosystem.