Atsuki Momose

I am an Executive Officer and Head of Research (Chief Research Officer) at Acompany, a privacy-tech startup based in Japan. Previously, I was a Research Scholar and Ph.D. student in Computer Science at the University of Illinois Urbana-Champaign.

My primary focus is on leveraging confidential computing technologies, such as Trusted Execution Environments (TEEs) and Multi-Party Computation (MPC), to help enterprises securely utilize confidential data and unlock new business value.

I am truly grateful to the Ethereum Foundation for supporting my research through a grant. I am honored to have received the Tsujii Shigeo Security Paper Award (2022) and the Illinois Distinguished Fellowship. I also serve as a program committee member for ACM CCS 2024 and ACM CCS 2025.

Google Scholar / Twitter

Research.

Trusted Execution Environment.

• Securing Nested Attestation of Confidential Serverless Computing without Intra-Enclave Isolation with Kailun Qin, Ao Sakurai, and Mona Vij @Preprint
  • A collaboration with Intel’s research team on practical confidential serverless computing using Intel SGX 🎉

MPC & Distributed Cryptography.

• Practical Asynchronous MPC from Lightweight Cryptography @Preprint.
  • Supported by Ethereum Foundation Research Grant 🎉
• Asynchronous Consensus without Trusted Setup or Public-Key Cryptography with Sourav Das, Sisi Duan, Shengqi Liu, Ling Ren, and Victor Shoup. @ACM CCS 2024.
• On the Security of KZG Commitment for VSS. with Sourav Das and Ling Ren. @ACM CCS 2023.

Blockchain.

• Optimal Communication Complexity of Authenticated Byzantine Agreement. with Ling Ren @DISC 2021
  • Resolved the long-standing open question on the optimal communication complexity of Byzantine Agreement (a.k.a., Dolev-Reischuk bound) 🎉
• Constant Latency in Sleepy Consensus. with Ling Ren. @ACM CCS 2022.
  • Cited by the “3-Slot-Finality” paper by the Ethereum team as foundational research in dynamic availability in blockchains 🎉
• Towards Practical Sleepy BFT. with Dahlia Malkhi and Ling Ren. @ACM CCS 2023.
• On the Amortized Communication Complexity of Byzantine Broadcast. with Ling Ren, Elaine Shi, Jun Wan, and Zhuolun Xiang. @ACM PODC 2023.
• Multi-Threshold Byzantine Fault Tolerance. with Ling Ren @ACM CCS 2021