Jianyu Niu

Jianyu Niu

Research Fellow at City University of Hong Kong

Selected Publications

The following lists a selection of my recent publications. For a complete list, please refer to my Google Scholar and DBLP. (Notation: * Corresponding author; _ Supervised student; † Equal contribution.)

Conference Papers

  1. [Security’26] Exploiting PoH Time Semantics in Solana via Re-Anchoring and Forking
    Quanbi Feng†, Pinshen Xu†, Jianyu Niu*, Cong Wang, and Yinqian Zhang
    USENIX Security Symposium (Security), Baltimore, MD, USA, August, 2026.
  2. [ICDE’26] HYDRA: Breaking the Global Ordering Barrier in Multi-BFT Consensus
    Hanzheng Lyu, Shaokang Xie, Jianyu Niu*, Mohammad Sadoghi, Yinqian Zhang, Cong Wang, Ivan Beschastnikh, Chen Feng
    IEEE International Conference on Data Engineering, Montréal, Canada, May 2026.
  3. [NDSS’26] When Cache Poisoning Meets LLM Systems: Semantic Cache Poisoning and Its Countermeasures
    Guanlong Wu, Taojie Wang, Yao Zhang, Zheng Zhang, Jianyu Niu, Ye Wu, Yinqian Zhang
    The Network and Distributed System Security Symposium, San Diego, California, Feb 2026.
  4. [ICDE’25] Orthrus: Accelerating Multi-BFT Consensus through Concurrent Partial Ordering of Transactions
    Hanzheng Lyu†, Shaokang Xie†, Jianyu Niu*, Mohammad Sadoghi, Ivan Beschastnikh, Yinqian Zhang, Chen Feng
    IEEE International Conference on Data Engineering, Hong Kong, China, May 2025.
  5. [EuroSys’25] Achilles: Efficient TEE-Assisted BFT Consensus via Rollback Resilient Recovery
    Jianyu Niu*, Xiaoqing Wen†, Guanlong Wu†, Shengqi Liu, Jiangshan Yu, Yinqian Zhang
    European Conference on Computer Systems, Rotterdam, Netherlands, Apr 2025.
  6. [NDSS’25] I Know What You Asked: Prompt Leakage via KV-Cache Sharing in Multi-Tenant LLM Serving
    Guanlong Wu, Zheng Zhang, Weili Wang, Jianyu Niu, Yao Zhang, Ye Wu, Yinqian Zhang
    The Network and Distributed System Security Symposium, San Diego, California, Feb 2025.
  7. [EuroSys’25] Ladon: High-Performance Multi-BFT Consensus via Dynamic Global Ordering
    Hanzheng Lyu†, Shaokang Xie†, Jianyu Niu*, Chen Feng, Yinqian Zhang, Ivan Beschastnikh
    European Conference on Computer Systems, Rotterdam, Netherlands, Apr 2025.
  8. [ICDE’23] Scaling Blockchain Consensus via a Robust Shared Mempool
    Fangyu Gai, Jianyu Niu*, Ivan Beschastnikh, Chen Feng, Sheng Wang
    IEEE International Conference on Data Engineering, Apr 2023.
  9. [CCS’22] Narrator: Secure and Practical State Continuity for Trusted Execution in the Cloud
    Jianyu Niu, Wei Peng, Xiaokuan Zhang, Yinqian Zhang
    ACM Conference on Computer and Communications Security, Nov 2022.
  10. [CCS’22] ENGRAFT: Enclave-guarded Raft on Byzantine Faulty Nodes
    Weili Wang, Sen Deng, Jianyu Niu, Michael K. Reiter, Yinqian Zhang
    ACM Conference on Computer and Communications Security, Nov 2022.
  11. [INFOCOM’21] On the Performance of Pipelined HotStuff
    Jianyu Niu, Fangyu Gai, Mohammad Mussadiq Jalalzai, and Chen Feng
    IEEE International Conference on Computer Communications, May 2021.

Journal Papers

  1. [TDSC] Unraveling Responsiveness of Chained BFT Consensus with Network Delay
    Yining Tang†, Mohan Yu†, Qihang Luo, Runchao Han, Jianyu Niu*, Chen Feng, and Yinqian Zhang
    IEEE Transactions on Dependable and Secure Computing, 2026.
  2. [TDSC] EBFT: Simplifying BFT Consensus Through Egalitarianism
    Jianyu Niu†, Runchao Han†, Hanzheng Lyu, Ivan Beschastnikh, Yinqian Zhang, Chen Feng
    IEEE Transactions on Dependable and Secure Computing, 2026.
    [Homepage with Animation ] [One variant used in VeChain] [Selected as reading list by Stanford EE374]
  3. [ToN] Leader Rotation Is Not Enough: Scrutinizing Leadership Democracy of Chained BFT Consensus
    Jianyu Niu, Yining Tang, Runchao Han, Chen Feng, and Yinqian Zhang
    IEEE/ACM Transactions on Networking, 2026.
  4. [TDSC] Mercury: Practical Cross-Chain Exchange via Trusted Hardware
    Xiaoqing Wen, Quanbi Feng, Jianyu Niu*, Yinqian Zhang, and Chen Feng
    IEEE Transactions on Dependable and Secure Computing, 2026.
  5. [TC] TeeRollup: Efficient Rollup Design Using Heterogeneous TEE
    Xiaoqing Wen, Quanbi Feng, Hanzheng Lyu, Jianyu Niu*, Yinqian Zhang, and Chen Feng
    IEEE Transactions on Computers, 2025.
  6. [TDSC] Chained HotStuff under Performance Attack
    Minjie Wang, Jianyu Niu*, Fangyu Gai, Mohammad M. Jalalzai, Yinqian Zhang, and Chen Feng
    IEEE Transactions on Dependable and Secure Computing, 2025.
  7. [TDSC] Ensuring State Continuity for Confidential Computing: A Blockchain-based Approach
    Wei Peng, Xiang Li, Jianyu Niu*, Xiaokuan Zhang, and Yinqian Zhang
    IEEE Transactions on Dependable and Secure Computing, 2024.
  8. [TDSC] Fast-Hotstuff: A Fast and Resilient Hotstuff Protocol
    Mohammad M. Jalalzai, Jianyu Niu, Chen Feng, and Fangyu Gai
    IEEE Transactions on Dependable and Secure Computing, 2023.
    [Selected as reading list by Stanford EE374] [Used in Deso, Plasma, and Zilliqa 2.0]
  9. [TDSC]SodsBC: A Practical Post-quantum by Design Asynchronous Blockchain Framework
    Shlomi Dolev, Bingyong Guo, Jianyu Niu, and Ziyu Wang (Alphabetically ordered)
    IEEE Transactions on Dependable and Secure Computing, 2023.
  10. [TDSC] Crystal: Enhancing Blockchain Mining Transparency with Quorum Certificate
    Jianyu Niu, Fangyu Gai, Runchao Han, Ren Zhang, Yinqian Zhang, and Chen Feng
    IEEE Transactions on Dependable and Secure Computing, 2022.