113 citations · 369 across the 13 of their papers we have counts for
13 papers
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…
Bi-level Protected Compressive Sampling
Leo Yu Zhang, Kwok-Wo Wong, Yushu Zhang +1
Some pioneering works have investigated embedding cryptographic properties in compressive sampling (CS) in a way similar to one-time pad symmetric cipher. This paper tackles the pr…
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…