Cryptography: Theory and Practice
Cryptography: Theory and Practice
Color image encryption based on one-time keys and robust chaotic maps
Computers & Mathematics with Applications
A new chaos-based fast image encryption algorithm
Applied Soft Computing
Image encryption using DNA complementary rule and chaotic maps
Applied Soft Computing
Triple-image encryption scheme based on one-time key stream generated by chaos and plain images
Journal of Systems and Software
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This paper proposes an improved chaos-based color pathological image encryption algorithm, using SHA-2 to generate one-time keys. In order to send different ciphered images to different recipients, the hash value of the plain image and a random number are applied to generate one-time initial conditions for Chebyshev maps, to make the key stream change in every confusion process without changing the common initial values. The permuted image is divided into 256-bit long blocks, the avalanche effect is applied to diffuse the blocks, i.e., each block is XORed with the hash value of the prior block. Simulation results demonstrate that the proposed algorithm is robust against common attacks.