## a b s t r a c t Recently, an image encryption scheme based on chaotic standard and logistic maps was proposed by Patidar et al. It was later reported by Rhouma et al. that an equivalent secret key can be reconstructed with only one known/chosen-plaintext and the corresponding ciphertext. Patidar
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Modified substitution–diffusion image cipher using chaotic standard and logistic maps
✍ Scribed by Vinod Patidar; N.K. Pareek; G. Purohit; K.K. Sud
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 554 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1007-5704
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This paper proposes an extended substitution-diffusion based image cipher using chaotic standard map [1] and linear feedback shift register to overcome the weakness of previous technique by adding nonlinearity. The first stage consists of row and column rotation and permutation which is controlled b