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Chaos based adaptive double-image encryption scheme using hash function and S-boxes
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DOI：10.1007/s11042-016-4288-z.png)
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摘要
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Most current symmetric cryptographic algorithms (symmetric ciphers and hash functions) are considered to be relatively secure against attacks by quantum computers. Here we propose an adaptive color double-image encryption scheme based on autonomous ODE chaotic system and SHA-512. The double-image is diffused firstly by chaotic sequences with bitwise exclusive or operation, and an algorithm is designed to transform two 512-bit hash values into two S-Boxes, to substitute for the pixels of diffused double-image respectively. In each encryption process, the initial values of chaotic system are from random signal, they are true random numbers. Simulation results demonstrate that the scheme is suitable and effective for color double-image encryption.
Keyword:
Double-image encryption
Autonomous ODE system
SHA-512
S-box
Post quantum cryptography
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3
论文数:
2.0W
被引数:
3.2W
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