10 papers
Leader Rotation Is Not Enough: Scrutinizing Leadership Democracy of Chained BFT Consensus
Jianyu Niu, Yining Tang, Runchao Han +2
With the growing popularity of blockchains, modern chained BFT protocols combining chaining and leader rotation to obtain better efficiency and leadership democracy have received i…
Unraveling Responsiveness of Chained BFT Consensus with Network Delay
Yining Tang, Mohan Yu, Qihang Luo +4
With the advancement of blockchain technology, chained Byzantine Fault Tolerant (BFT) protocols have been increasingly adopted in practical systems, making their performance a cruc…
Chimera: Protocol-Aware Recovery for Confidential BFT Consensus
Tong Liu, Xiaoqing Wen, Ziwei Zhou +4
Trusted Execution Environments (TEEs) have enabled confidential Byzantine Fault-Tolerant (BFT) consensus systems with confidentiality and improved scalability. However, TEEs do not…
DIST-FL: Enhancing Security for TEE-based Aggregation in Federated Learning
Guanlong Wu, Ju Yang, Zhen Huang +4
Trusted Execution Environments (TEEs)-aided federated learning protocols emerge as promising solutions to counter server-side adversaries and ensure the trustworthiness of the serv…
TeeDAO: A Decentralized Autonomous Organization for Heterogeneous TEEs
Pinshen Xu, Wentao Dong, Guoxing Chen +3
Trusted Execution Environments (TEEs) have emerged as a critical technology for safeguarding sensitive data and ensuring code integrity in modern computing systems. However, relyin…
ODYSSEY: Reestablishing Confidentiality in Confidential Blockchain via Delegated Execution
Ju Yang, Weili Wang, Jianyu Niu +2
Confidential blockchains leveraging Trusted Execution Environments (TEEs) have garnered extensive attention for transaction confidentiality. In this paper, we first taxonomize two…