A Fast Chaotic Image Encryption Scheme With Simultaneous Permutation-Diffusion Operation
A Fast Chaotic Image Encryption Scheme With Simultaneous Permutation-Diffusion Operation
复制标题
一种同时进行排列扩散操作的快速混沌图像加密方案
DOI：
10.1109/access.2020.2971759
复制
发表时间：
2020-01-01
期刊：
影响因子：
3.9
通讯作者：
Wang, Dan
中科院分区：
文献类型：
--
作者：
Liu, Lidong;Lei, Yuhang;Wang, Dan
提出了一种同时进行置换扩散操作的混沌图像加密方案。我们将联合收割机的置换和扩散过程结合为一个整体，即同时置换和扩散操作（SPDO）。这可以解决传统加密方案中置换和扩散是两个独立的过程，导致攻击者分别破解这两个过程的问题。在SPDO算法中，当前Sine-Sine混沌映射的初始值与密钥和先前加密像素的值有关。在这种情况下，所提出的方案可以生成与明文相关的动态密钥流和索引，这提高了加密方案对明文的敏感性。此外，在加密过程中，像素值按行和列（行级和列级）进行处理。因此，与比特级或像素级图像加密方案相比，该方案具有更低的时间复杂度和更快的运行速度，有利于数字图像的批量传输和实时传输。仿真结果和安全性分析表明，该方案能够抵抗统计攻击、差分攻击、选择明文攻击等常见攻击以及其他综合攻击。
In this paper, a secure and fast chaotic image encryption scheme with simultaneous permutation-diffusion operation is proposed. We combine permutation and diffusion processes into a whole, namely, simultaneous permutation and diffusion operation (SPDO). This can solve the problem of traditional encryption scheme in which the permutation and diffusion are two independent processes, that leads attackers to crack the two processes separately. In SPDO, the initial value of the current Sine-Sine chaotic map is related to the secret keys and the previous encrypted pixels’ values. In this case, the proposed scheme can generate dynamic key streams and indexes that are related to plaintext, which improves the sensitivity to plaintext for the encryption scheme. In addition, the pixel values are processed by row and column (row-level and column-level) during the encryption procedure. Thus, the proposed scheme presents lower time complexity and faster running speed compared with bit-level or pixel-level image encryption schemes, which makes the proposed scheme be conducive to the batch transmission and real-time transmission of digital images. The simulation results and security analysis show that our scheme can resist common attacks, such as statistical attack, differential attack, chosen plaintext attack and other comprehensive attacks.