Leo (Yu) Zhang
Lecturer in Security and Networking
School of Information Technology, Deakin University
leo.zhang@deakin.edu.au; leocityu@gmail.com

Dr. Leo Yu Zhang is a Lecturer in Security and Networking of the School of Information Technology, Deakin University. He received his BE and Msc degrees in computational mathematics both from Xiangtan University in 2009 and 2012, and then his PhD degree at the Department of Electronic Engineering, City University of Hong Kong, under the supervision of Prof. Guanrong Chen and Prof. Kwok-Wo Wong in 2016. During July to October 2011, he was a Research Assistant with the Department of Electronic Engineering, City University of Hong Kong. From July 2012 to August 2013, he worked at the State Grid Electric Power Research Institute of China as a development engineer. From April 2015 to July 2015, he worked at the Research Center on Electronic Systems of the University of Bologna and the Department of Engineering of the University of Ferrara, Italy, as a visiting PhD student, under the supervision of Prof. Gianluca SettiFrom March 2016 to August 2016, he worked at the Faculty of Science and Technology of University of Macau as a Research Assistant with Prof. Jiantao ZhouFrom Sep. 2016 to 2017, he was a postdoctoral Research Associate at the Department of Computer Science, City University of Hong Kong, hosted by Prof. Cong Wang. He is a member of IEEE since 2017 and an EC-Council Certified Ethical Hacker (CEH) since 2019.

Research Interests
Cloud Security, Compressed Sensing, Multimedia Coding and Security

Research Experience
time duration position involved project / duties affiliation
Jan. 2018 - Dec. 2020 The Principal Investigator

Research on the Secrecy of Compressed Sampling and its Applications  Jinan Univ
Jan. 2016 - Dec. 2018   The First Attendee Research on Image Encryption Technique Based on Compressed Sensing  EE of CityU 
 Sep. 2016 - Aug. 2017 Research Associate Achieving Similarity Joint Services for Outsourced Large Encrypted Datasets   CS of CityU
Mar. 2016 - Aug. 2016  Research Assistant  High-fidelity Image and Video Compression Technology for Resource-constrained Mobile Devices FST of UM
 Mar. 2015 - Jul. 2015 Visiting PhD Student  Enabling Cryptographic Primitives in the Compressed Sensing Acquisition Framework  ENDIF and CES at University of Bologna 
 Jul. 2011 - Oct. 2011   Research Assistant  Algorithms Design and Analysis for Binary Neural Networks and Cellular Nonlinear Networks  CCCN at CityU

Selected Publications
  1. Leo Yu Zhang, Yifeng Zheng, Jian Weng, Cong Wang, Zihao Shan, Kui Ren, "You Can Access But You Cannot Leak: Defending Against Illegal Content Redistribution in Encrypted Cloud Media Center," TDSC, in press, 2018.
  2. Leo Yu ZhangYuansheng Liu, Cong Wang, Jiantao Zhou, Yushu Zhang, Guanrong Chen, "Improved Known-plaintext Attack on Permutation-only Multimedia Ciphers," Inf Sci, vols. 430-431, pp. 228-239, 2018. [Code]
  3. Yushu Zhang, Jiantao Zhou, Yong Xiang, Leo Yu Zhang, Fei Chen, Shaoning Pang, Xiaofeng Liao, "Computation Outsourcing Meets Lossy Channel: Secure Sparse Robustness Decoding Service in Multi-Clouds," TBD, in press, 2017. 
  4. Leo Yu Zhang, Yuansheng Liu, Fabio Pareschi, Yushu Zhang, Kwok-Wo Wong, Riccardo Rovatti, Gianluca Setti, "On the security of a class of diffusion mechanisms for image encryption," TCYB, vol. 48, no. 4, pp. 1163-1175, 2018. [Code]
  5. Leo Yu Zhang, Kwok-Wo Wong, Yushu Zhang, Jiantao Zhou, "Bi-level Protected Compressive Sampling", TMM, vol. 18, no. 9, pp. 1720-1732, 2016.