TY - GEN
T1 - Imitater
T2 - 30th European Symposium on Research in Computer Security, ESORICS 2025
AU - Zeng, Qingming
AU - Li, Mo
AU - Fu, Ximing
AU - Jiang, Hui
AU - Liu, Chuanyi
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.
PY - 2026
Y1 - 2026
N2 - Byzantine Fault Tolerant (BFT) consensus, a cornerstone of blockchain technology, has seen significant advancements. While existing BFT protocols ensure security guarantees, they often suffer from efficiency challenges, particularly under conditions of network instability or malicious exploitation of system mechanisms. We propose a novel Shared Mempool (SMP) protocol, named Imitater, which can be seamlessly integrated into BFT protocols. By chaining microblocks and applying coding techniques, Imitater efficiently achieves totality and availability. Furthermore, a BFT protocol augmented with Imitater ensures order preservation of client transactions while mitigating the risks of over-distribution and unbalanced workload. In the experiment, we integrate Imitater into the HotStuff protocol, resulting in Imitater-HS. The performance of Imitater-HS is validated in a system with up to 256 nodes. Experimental results demonstrate the efficiency of our approach: Imitater-HS achieves higher throughput and lower latency in the presence of faulty nodes compared to Stratus-HS, the state-of-the-art protocol. Notably, the throughput improvement increases with the number of faulty nodes.
AB - Byzantine Fault Tolerant (BFT) consensus, a cornerstone of blockchain technology, has seen significant advancements. While existing BFT protocols ensure security guarantees, they often suffer from efficiency challenges, particularly under conditions of network instability or malicious exploitation of system mechanisms. We propose a novel Shared Mempool (SMP) protocol, named Imitater, which can be seamlessly integrated into BFT protocols. By chaining microblocks and applying coding techniques, Imitater efficiently achieves totality and availability. Furthermore, a BFT protocol augmented with Imitater ensures order preservation of client transactions while mitigating the risks of over-distribution and unbalanced workload. In the experiment, we integrate Imitater into the HotStuff protocol, resulting in Imitater-HS. The performance of Imitater-HS is validated in a system with up to 256 nodes. Experimental results demonstrate the efficiency of our approach: Imitater-HS achieves higher throughput and lower latency in the presence of faulty nodes compared to Stratus-HS, the state-of-the-art protocol. Notably, the throughput improvement increases with the number of faulty nodes.
UR - https://www.scopus.com/pages/publications/105020009536
U2 - 10.1007/978-3-032-07901-5_21
DO - 10.1007/978-3-032-07901-5_21
M3 - 会议稿件
AN - SCOPUS:105020009536
SN - 9783032079008
T3 - Lecture Notes in Computer Science
SP - 415
EP - 432
BT - Computer Security – ESORICS 2025 - 30th European Symposium on Research in Computer Security, Proceedings
A2 - Nicomette, Vincent
A2 - Benzekri, Abdelmalek
A2 - Boulahia-Cuppens, Nora
A2 - Vaidya, Jaideep
PB - Springer Science and Business Media Deutschland GmbH
Y2 - 22 September 2025 through 24 September 2025
ER -