One-Dimensional Quadratic Chaotic System and Splicing Model for Image Encryption

Digital image transmission plays a very significant role in information transmission, so it is very important to protect the security of image transmission. Based on the analysis of existing image encryption algorithms, this article proposes a new digital image encryption algorithm based on the splicing model and 1D secondary chaotic system. Step one is the algorithm of this article divides the plain image into four sub-parts by using quaternary coding, and these four sub-parts can be coded separately. Only by acquiring all the sub-parts at one time can the attacker recover the useful plain image. Therefore, the algorithm has high security. Additionally, the image encryption scheme in this article used a 1D quadratic chaotic system, which makes the key space big enough to resist exhaustive attacks. The experimental data show that the image encryption algorithm has high security and a good encryption effect.

Automated summary

Digital image transmission is crucial in information transmission, emphasizing the importance of securing image transmission. In this study, a new digital image encryption algorithm based on the splicing model and 1D quadratic chaotic system is proposed after analyzing existing image encryption algorithms. The algorithm divides the plain image into four sub-parts using quaternary coding, ensuring high security by requiring all sub-parts for image recovery. Additionally, the algorithm utilizes a 1D quadratic chaotic system to provide a sufficiently large key space, effectively resisting exhaustive attacks and demonstrating high security and encryption effectiveness.