A selective image encryption scheme using LICC hyperchaotic system

In this paper, an improved multi-dimensional hyperchaotic system derived from the logistic map and ICMIC based on closed-loop coupling (LICC system) is proposed it used in design of selective image encryption. The performance analysis shows that LICC with a strong degree has parameters whose value can be set more flexibly generate wider uniform distribution chaotic sequences. Then encryption proposed. Firstly, adaptive pseudo-random sequence generator hash function designed to ensure difference sequences different steps. Second, novel bit-level scrambling increase speed. Finally, efficient rule select blocks weak security second step performed at selected security. show algorithm secure enough resist several types attacks.