Journal ArticleDOI
Efficient image or video encryption based on spatiotemporal chaos system
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TLDR
Theoretical analysis and experimental results show that the scheme has good cryptographic security and perceptual security, and it does not affect the compression efficiency apparently, which makes the scheme a suitable choice for practical applications.Abstract:
In this paper, an efficient image/video encryption scheme is constructed based on spatiotemporal chaos system. The chaotic lattices are used to generate pseudorandom sequences and then encrypt image blocks one by one. By iterating chaotic maps for certain times, the generated pseudorandom sequences obtain high initial-value sensitivity and good randomness. The pseudorandom-bits in each lattice are used to encrypt the Direct Current coefficient (DC) and the signs of the Alternating Current coefficients (ACs). Theoretical analysis and experimental results show that the scheme has good cryptographic security and perceptual security, and it does not affect the compression efficiency apparently. These properties make the scheme a suitable choice for practical applications.read more
Citations
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Journal ArticleDOI
A symmetric image encryption algorithm based on mixed linear–nonlinear coupled map lattice
Ying-Qian Zhang,Xingyuan Wang +1 more
TL;DR: In the proposed image encryption, this spatiotemporal chaotic system has more outstanding cryptography features in dynamics than the logistic map or the system of coupled map lattices does, and the strategy of bit-level pixel permutation is employed.
Journal ArticleDOI
A novel chaotic image encryption scheme using DNA sequence operations
TL;DR: Experimental results and theoretical analysis show that the scheme is able to resist various attacks, so it has extraordinarily high security.
Journal ArticleDOI
A novel color image encryption algorithm based on DNA sequence operation and hyper-chaotic system
TL;DR: A new color image encryption algorithm based on DNA (Deoxyribonucleic acid) sequence addition operation is presented that not only has good encryption effect, but also has the ability of resisting exhaustive attack, statistical attack and differential attack.
Journal ArticleDOI
A new image encryption algorithm based on non-adjacent coupled map lattices
Ying-Qian Zhang,Xingyuan Wang +1 more
TL;DR: This work proposes a new image encryption algorithm which is based on the spatiotemporal non-adjacent coupled map lattices, which has more outstanding cryptography features in dynamics than the logistic map or coupledmap lattices does.
Journal ArticleDOI
Image encryption using DNA addition combining with chaotic maps
TL;DR: A new image encryption scheme based on DNA sequence addition operation and chaos that not only can achieve good encryption, but can also resist exhaustive attack, statistical attack and differential attack.
References
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Journal ArticleDOI
A symmetric image encryption scheme based on 3D chaotic cat maps
TL;DR: The two-dimensional chaotic cat map is generalized to 3D for designing a real-time secure symmetric encryption scheme that uses the 3D cat map to shuffle the positions of image pixels and uses another chaotic map to confuse the relationship between the cipher-image and the plain-image, thereby significantly increasing the resistance to statistical and differential attacks.
Journal ArticleDOI
Symmetric Ciphers Based on Two-Dimensional Chaotic Maps
TL;DR: Methods are shown how to adapt invertible two-dimensional chaotic maps on a torus or on a square to create new symmetric block encryption schemes to encrypt an N×N image.
Journal ArticleDOI
Circuit implementation of synchronized chaos with applications to communications.
Kevin M. Cuomo,Alan V. Oppenheim +1 more
TL;DR: An analog circuit implementation of the chaotic Lorenz system is described and used to demonstrate two possible approaches to private communications based on synchronized chaotic systems and a potential approach to communications applications based on signal masking and recovery.
Journal ArticleDOI
Chaos shift keying: modulation and demodulation of a chaotic carrier using self-synchronizing Chua's circuits
TL;DR: In this article, a technique for transmitting digital information using a chaotic carrier is described, in which each symbol to be transmitted is coded as an attractor in Chua's circuit.
Book
Analysis And Design Of Stream Ciphers
TL;DR: A comparison of the Knapsack as a Nonlinear Function and Nonlinear Combining Functions with Memory, and the Summation Principle, which helps clarify the role of memory in the generation of sequences.