269 citations · 950 across the 10 of their papers we have counts for
Showing 2012 · cs.CRShow all
3 papers · 2 filters
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…
cs.CR2012★ 2 cited
Breaking a novel colour image encryption algorithm based on chaos
Chengqing Li, Yu Zhang, Rong Ou +1
Recently, a colour image encryption algorithm based on chaos was proposed by cascading two position permutation operations and one substitution operation, which are all determined…