Zhenzhen Bao

Assistant Professor

Institute for Network Sciences and Cyberspace
Tsinghua University
Beijing, China
Email: zzbao at tsinghua.edu.cn
GitHub
Google Scholar
DBLP

Broadcast

I'm looking for self-motivated and diligent Ph.D. candidates. I am also looking forward to working with postdocs in the area of symmetric-key cryptography. Please feel free to email me.

Research interests

Symmetric-key cryptography

Hash function
Block cipher
Authenticated encryption

Cryptanalysis
Design
Implementations
Cryptographic tools
Artificial intelligence and cryptanalysis

Education

Ph.D. in Information Security, University of Chinese Academy of Sciences.

Advisor: Prof. Dongdai Lin, Prof. Wentao Zhang

B.S. in Information Security, University of Science and Technology of China.

Work Experience

2022-Present, Assistant Professor, Tsinghua University, China
- Teams: Institute for Network Sciences and Cyberspace
2016-2022, Research Scientist, Nanyang Technological University, Singapore
- Advisor: Prof. Jian Guo

Publications

	XOCB: Beyond-Birthday-Bound Secure Authenticated Encryption Mode with Rate-One Computation 42th Annual International Conference on the Theory and Applications of Cryptographic Techniques Zhenzhen Bao, Seongha Hwang, Akiko Inoue, ByeongHak Lee, Jooyoung Lee, Kazuhiko Minematsu full paper live talk by Seongha slides by Seongha code	Eurocrypt 2023
	A Deep Learning aided Key Recovery Framework for Large-State Block Ciphers SCIENTIA SINICA Informationis (2022) Yi Chen, Zhenzhen Bao, Yantian Shen, Hongbo Yu full paper code	Sci. China Inf. Sci. 2022
	Enhancing Differential-Neural Cryptanalysis 27th Annual International Conference on the Theory and Application of Cryptology and Information Security Zhenzhen Bao, Jian Guo, Meicheng Liu, Li Ma, Yi Tu full paper live talk by Zhenzhen 5 mins talk by Zhenzhen slides by Zhenzhen code	Asiacrypt 2022
	Superposition Meet-in-the-Middle Attacks: Updates on Fundamental Security of AES-like Hashing 42nd Annual International Cryptology Conference Zhenzhen Bao, Jian Guo, Danping Shi, Yi Tu full paper slides by Zhenzhen 25 mins talk by Zhenzhen 5 mins talk by Zhenzhen code	Crypto 2022
	Automatic Search of Meet-in-the-Middle Preimage Attacks on AES-like Hashing 40th Annual International Conference on the Theory and Applications of Cryptographic Techniques Zhenzhen Bao, Xiaoyang Dong, Jian Guo, Zheng Li, Danping Shi, Siwei Sun, Xiaoyun Wang full paper live talk by Zhenzhen 25 mins talk by Danping	Eurocrypt 2021
	WARP: Revisiting GFN for Lightweight 128-bit Block Cipher 27th International Conference - Selected Areas in Cryptography Subhadeep Banik, Zhenzhen Bao, Takanori Isobe, Hiroyasu Kubo, Kazuhiko Minematsu, Kosei Sakamoto, Nao Shibata, Maki Shigeri full paper talk by Kosei code	SAC 2020
	Generic Attacks on Hash Combiners Journal of Cryptology 33(3): 742-823 (2020) Zhenzhen Bao, Itai Dinur, Jian Guo, Gaëtan Leurent, Lei Wang Invited to present at ASK 2019 full paper slides by Zhenzhen	Journal of Cryptology 2020
	TNT: How to Tweak a Block Cipher 39th Annual International Conference on the Theory and Applications of Cryptographic Techniques Zhenzhen Bao, Chun Guo, Jian Guo, Ling Song full paper short live slides live talk by Zhenzhen 25 mins talk by Chun code	Eurocrypt 2020
	Extended Truncated-differential Distinguishers on Round-reduced AES IACR Trans. Symmetric Cryptol. 2020(3): 197-261, 27th annual Fast Software Encryption conference Zhenzhen Bao, Jian Guo, Eik List full paper slides by Eik live talk by Eik 25 mins talk by Eik code	ToSC 2020(3)/FSE 2020
	Optimizing Implementations of Linear Layers IACR Trans. Symmetric Cryptol. 2020(2): 120-145, 27th annual Fast Software Encryption conference Zejun Xiang, Xiangyoung Zeng, Da Lin, Zhenzhen Bao, Shasha Zhang full paper slides by Zejun live talk by Zejun 25mins talk by Zejun code	ToSC 2020(2)/FSE 2020
	Improved Meet-in-the-Middle Preimage Attacks against AES Hashing Modes IACR Trans. Symmetric Cryptol. 2019(4): 318-347, 27th annual Fast Software Encryption conference Zhenzhen Bao, Lin Ding, Jian Guo, Haoyang Wang, Wenying Zhang full paper live talk by Haoyang 25 mins talk by Haoyang	ToSC 2019(4)/FSE 2020
	ZOCB and ZOTR: Tweakable Blockcipher Modes for Authenticated Encryption with Full Absorption IACR Trans. Symmetric Cryptol. 2019(2): 1-54, 27th annual Fast Software Encryption conference Zhenzhen Bao, Jian Guo, Tetsu Iwata, Kazuhiko Minematsu full paper slides by Tetsu live talk by Tetsu 25 mins talk by Tetsu code	ToSC 2019(2)/FSE 2020
	PEIGEN - a Platform for Evaluation, Implementation, and Generation of S-boxes IACR Trans. Symmetric Cryptol. 2019(1): 330-394, 26th annual Fast Software Encryption conference Zhenzhen Bao, Jian Guo, San Ling, Yu Sasaki full paper slides by Zhenzhen talk by Zhenzhen code	ToSC 2019(1)/FSE 2019
	Functional Graphs and Their Applications in Generic Attacks on Iterated Hash Constructions IACR Trans. Symmetric Cryptol. 2018(1): 201-253, 25th annual Fast Software Encryption conference Zhenzhen Bao, Jian Guo, Lei Wang full paper slides by Zhenzhen talk by Zhenzhen code code	ToSC 2018(1)/FSE 2018
	Functional Graph Revisited: Updates on (Second) Preimage Attacks on Hash Combiners 37nd Annual International Cryptology Conference Zhenzhen Bao, Lei Wang, Jian Guo, Dawu Gu full paper slides by Zhenzhen talk by Zhenzhen code	Crypto 2017
	Applying MILP Method to Searching Integral Distinguishers Based on Division Property for 6 Lightweight Block Ciphers 22nd International Conference on the Theory and Application of Cryptology and Information Security Zejun Xiang, Wentao Zhang, Zhenzhen Bao, Dongdai Lin full paper talk by Zejun code	Asiacrypt 2016
	The Linear Complexity and 2-Error Linear Complexity Distribution of 2^n-Periodic Binary Sequences with Fixed Hamming Weight Information and Communications Security, 18th International Conference Wenlun Pan, Zhenzhen Bao, Dongdai Lin, Feng Liu full paper	ICICS 2016
	The Distribution of 2^n-Periodic Binary Sequences with Fixed k-Error Linear Complexity Information Security Practice and Experience, 12th International Conference Wenlun Pan, Zhenzhen Bao, Dongdai Lin, Feng Liu full paper	ISPEC 2016
	Bitsliced Implementations of the PRINCE, LED and RECTANGLE Block Ciphers on AVR 8-bit Microcontrollers 17th International Conference, Information and Communications Security Zhenzhen Bao, Peng Luo, Dongdai Lin full paper slides by Zhenzhen code	ICICS 2015
	A New Classification of 4-bit Optimal S-boxes and Its Application to PRESENT, RECTANGLE and SPONGENT Fast Software Encryption - 22nd International Workshop Wentao Zhang, Zhenzhen Bao, Vincent Rijmen, Meicheng Liu full paper talk by Wentao	FSE 2015
	RECTANGLE: a Bit-slice Lightweight Block Cipher Suitable for Multiple Platforms SCIENCE CHINA Information Sciences, 58(12):1-15 Wentao Zhang, Zhenzhen Bao, Dongdai Lin, Vincent Rijmen, Bohan Yang, Ingrid Verbauwhede full paper slides by Wentao	Sci. China Inf. Sci. 2015
	Speeding Up the Search Algorithm for the Best Differential and Best Linear Trails Information Security and Cryptology - 10th International Conference Zhenzhen Bao, Wentao Zhang, Dongdai Lin full paper slides by Zhenzhen	Inscrypt 2014

Academic Service

ToSC/FSE (Editorial Board) 2024/2023, 2023/2022, 2022/2021, 2021/2020, 2020/2019
Asiacrypt (Program Committee, Session Chair) 2023, 2021, 2020, 2019
ACISP (Program Committee) 2022, 2020
Inscrypt (Program Committee, Session Chair) 2021
CFail (Program Committee) 2021

Awards and Supports

2020, Gopalakrishnan - NTU Presidential Postdoctoral Fellowship Award, by Nanyang Technological University, Singapore
2009, National Scholarship, University of Science and Technology of China, by Ministry of Education, China

Zhenzhen Bao

Broadcast

Research interests

Education

Work Experience

Publications

Academic Service

Awards and Supports

Open Sources

Cryptanalysis

Basic components in symmetric-key ciphers

Implementations of ciphers