2026
IEEE/ACM ISCA
People
Liu Chang
Postdoctoral Researcher
ChocoLab · School of Computing, National University of Singapore
Bio
Chang is a postdoctoral researcher at the NUS School of Computing, working with Flavien Solt on offensive hardware and systems security. Chang's research uses reverse engineering and microarchitectural analysis to find vulnerabilities in modern processors and trusted execution environments.
Chang received a PhD from Tsinghua University in 2026, advised by Dongsheng Wang and Yongqiang Lyu. From 2024 to 2025, Chang was a visiting PhD student at NUS, working with Trevor E. Carlson.
Research interests
- Microarchitectural attacks and side channels
- Trusted execution environments and confidential computing
- Processor reverse engineering
Education
- PhD in Computer Science and Technology, Tsinghua University, 2021 to 2026. Advisors: Dongsheng Wang and Yongqiang Lyu.
- BE in Computer Science and Technology, Tsinghua University, 2017 to 2021
Awards
- National Scholarship, 2025
- First-class Comprehensive Scholarship, Tsinghua University, 2023 and 2024
- State Scholarship Fund, China Scholarship Council, 2024
- Champion (team leader), Huawei Kunpeng Application Innovation Competition, 2023
- Huawei Bug Bounty Program, 2022
Publications
2026
IEEE HPCA
SSBleed: Non-Speculative Side-Channel Attacks via Speculative Store Bypass on Armv9 CPUs
2025
ACM/IEEE DAC
HoBBy: Hardening Unbalanced Branches against Control Flow Attacks on Intel SGX and AMD SEV
2025
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Exploiting ARMeD Channels by Reverse Engineering ARM Memory Disambiguation Unit
2025
ACM ASPLOS
MDPeek: Breaking Balanced Branches in SGX with Memory Disambiguation Unit Side Channels
2024
IEEE HPCA
Uncovering and Exploiting AMD Speculative Memory Access Predictors for Fun and Profit
2023