157 citations · 536 across the 9 of their papers we have counts for
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cs.CR2012★ 157 cited
Breaking a novel image encryption scheme based on improved hyperchaotic sequences
Chengqing Li, Yuansheng Liu, Tao Xie +1
Recently, a novel image encryption scheme based on improved hyperchaotic sequences was proposed. A pseudo-random number sequence, generated by a hyper-chaos system, is used to dete…
cs.CR2012★ 55 cited
Breaking a chaotic image encryption algorithm based on modulo addition and XOR operation
Chengqing Li, Yuansheng Liu, Leo Yu Zhang +1
This paper re-evaluates the security of a chaotic image encryption algorithm called MCKBA/HCKBA and finds that it can be broken efficiently with two known plain-images and the corr…