Chaotic image encryption based on circular substitution box and key stream buffer

作者：

Highlights：

• A new image encryption scheme based on substitution–diffusion structure is proposed.

• The circular S-box is introduced for substituting the pixels depending on image.

• The key stream buffer is used to generate the key stream varying for different images.

• The proposed encryption scheme has high security and significant speed advantage.

摘要

Highlights•A new image encryption scheme based on substitution–diffusion structure is proposed.•The circular S-box is introduced for substituting the pixels depending on image.•The key stream buffer is used to generate the key stream varying for different images.•The proposed encryption scheme has high security and significant speed advantage.

论文关键词：Image encryption,Chaos,S-box,Substitution,Diffusion

论文评审过程：Received 20 December 2013, Revised 4 June 2014, Accepted 26 June 2014, Available online 3 July 2014.

论文官网地址：https://doi.org/10.1016/j.image.2014.06.012