113 citations · 369 across the 13 of their papers we have counts for
12 papers · 1 filter
On the security of a class of diffusion mechanisms for image encryption
Leo Yu Zhang, Yuansheng Liu, Kwok-Wo Wong +4
The need for fast and strong image cryptosystems motivates researchers to develop new techniques to apply traditional cryptographic primitives in order to exploit the intrinsic fea…
Chosen-plaintext attack of an image encryption scheme based on modified permutation-diffusion structure
Yuansheng Liu, Leo Yu Zhang, Jia Wang +2
Since the first appearance in Fridrich's design, the usage of permutation-diffusion structure for designing digital image cryptosystem has been receiving increasing research attent…
Joint Quantization and Diffusion for Compressed Sensing Measurements of Natural Images
Leo Yu Zhang, Kwok-Wo Wong, Yushu Zhang +1
Recent research advances have revealed the computational secrecy of the compressed sensing (CS) paradigm. Perfect secrecy can also be achieved by normalizing the CS measurement vec…
Cryptanalyzing an image encryption algorithm based on scrambling and Veginere cipher
Li Zeng, Renren Liu, Leo Yu Zhang +2
Recently, an image encryption algorithm based on scrambling and Vegin`ere cipher has been proposed. However, it was soon cryptanalyzed by Zhang et al. using a combination of chosen…
Robust Coding of Encrypted Images via Structural Matrix
Yushu Zhang, Kwok-Wo Wong, Leo Yu Zhang +1
The robust coding of natural images and the effective compression of encrypted images have been studied individually in recent years. However, little work has been done in the robu…
Embedding Cryptographic Features in Compressive Sensing
Yushu Zhang, Kwok-Wo Wong, Di Xiao +2
Compressive sensing (CS) has been widely studied and applied in many fields. Recently, the way to perform secure compressive sensing (SCS) has become a topic of growing interest. T…
Cryptanalyzing a class of image encryption schemes based on Chinese Remainder Theorem
Chengqing Li, Yuansheng Liu, Leo Yu Zhang +1
As a fundamental theorem in number theory, the Chinese Reminder Theorem (CRT) is widely used to construct cryptographic primitives. This paper investigates the security of a class…
A chaotic image encryption scheme owning temp-value feedback
Leo Yu Zhang, Xiaobo Hu, Yuansheng Liu +1
This paper presents a novel efficient chaotic image encryption scheme, in which the temp-value feedback mechanism is introduced to the permutation and diffusion procedures. Firstly…
Breaking a novel colour image encryption algorithm based on chaos
Chengqing Li, Yu Zhang, Rong Ou +1
Recently, a colour image encryption algorithm based on chaos was proposed by cascading two position permutation operations and one substitution operation, which are all determined…
Cryptanalyzing a chaos-based image encryption algorithm using alternate structure
Yu Zhang, Chengqing Li, Kwok-Wo Wong +2
Recently, a chaos-based image encryption algorithm using alternate structure (IEAS) was proposed. This paper focuses on differential cryptanalysis of the algorithm and finds that s…
A Fast Image Encryption Scheme based on Chaotic Standard Map
Kwok-Wo Wong, Bernie Sin-Hung Kwok, Wing-Shing Law
In recent years, a variety of effective chaos-based image encryption schemes have been proposed. The typical structure of these schemes has the permutation and the diffusion stages…
Baptista-type chaotic cryptosystems: Problems and countermeasures
Shujun Li, Guanrong Chen, Kwok-Wo Wong +2
In 1998, M. S. Baptista proposed a chaotic cryptosystem, which has attracted much attention from the chaotic cryptography community: some of its modifications and also attacks have…