.png){kind=icon}
返回
A novel pseudo-random number assisted fast image encryption algorithm
.png){kind=icon}
PRE
AI
DOI：10.1007/s11042-023-17209-5.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Image information encryption is an essential research direction in symmetric cryptography. A new digital image cryptosystem is proposed in this paper. A 480-bit external key is used to generate an equivalent key by the chaotic map, and a pseudo-random matrix is produced by the computer's pseudo-random number generator to assist the image encryption. The image data processing uses the discrete logarithm-based arithmetic on the Galois field GF(257). The original plain image is transformed into a non-visual image by exponentiation and multiplication operations on the field. Then, the non-visual image is self-scrambled to obtain a cipher image. Since the assisted matrix used for each encryption is a pseudo-random matrix, even for the same plain image and the unchanged secret key, ciphers image produced in multiple encryptions are different for the image encryption system. Simulation experiments show that the cipher images are excellent in statistical characteristics, and the image cryptosystem has the advantages of high processing speed and high security intensity.
Keyword:
Image encryption
Pseudo-random number assisted encryption
Symmetric cryptography
Galois field arithmetic operation
Chaotic system
期刊
IF:
3
论文数:
1.9W
被引数:
3.2W
机构
暂无机构信息
引用论文
A novel chaotic image encryption technique based on multiple discrete dynamical maps一种新的基于多重离散动态映射的混沌图像加密技术
PREAI
分享收藏
TestU01: A C library for empirical testing of random number generatorsTestU01: 用于随机数生成器的经验测试的C库
PREAI
分享收藏Chaos-based fast colour image encryption scheme with true random number keys from environmental noise.png)
IET IMAGE PROCESSING
IET IMAGE PROCESSINGIF2.2
PREAI
分享收藏Hallucinogens as hard science: The adrenochrome hypothesis for the biogenesis of schizophrenia.
PREAI
分享收藏
查看更多内容