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

Education

Work Experience

Publications

More Insight on Deep Learning-Aided Cryptanalysis
29th Annual International Conference on the Theory and Application of Cryptology and Information Security
Zhenzhen Bao, Jinyu Lu, Yiran Yao, Liu Zhang
full paper live talk by Zhenzhen slides by Zhenzhen code
Asiacrypt 2023
Differential-Linear Approximation Semi-Unconstrained Searching and Partition Tree: Application to LEA and Speck
29th Annual International Conference on the Theory and Application of Cryptology and Information Security
Yi Chen, Zhenzhen Bao, Hongbo Yu
full paper slides by Yi code
Asiacrypt 2023
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
28th 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, Gaƫtan 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

Awards and Supports

Open Sources

Cryptanalysis

Basic components in symmetric-key ciphers

Implementations of ciphers