Parallel bidirectional image encryption algorithm based on self-adaptive chaos
Liu Zhu-hu · Modern Electronics Technique · 2014
In order to improve the running speed of image encryption algorithm and consider the security of the algorithm, a parallel bidirectional image encryption algorithm based on self-adaptive chaos is proposed. The grouping and parallel encryption for images is executed by this algorithm. Two one-dimensional chaotic maping parameters and original value are disturbed by elements in image groups. The encryption sequence is generated through two chaotic sequences' XOR operation. The bidirectional encryption is adopted in the algorithm. Diffusion between groups is implemented by using the last element of every group after forward encryption. The change of the last element is spread to the whole group through reverse encryption. The experimental results show that the algorithm encrypts fast,and has high safety.