Study compares TEE-enabled Ethereum rollup sequencer designs
Original title: Empirical Analysis of TEE-Enabled Rollup Designs
Authors report small TEE overhead under both PBS and monolithic models, with PBS enabling faster builders.
The paper empirically compares trusted-execution-environment designs for Ethereum layer-2 rollup sequencers under proposer-builder separation and a monolithic model. Centralized sequencers can censor transactions and extract maximum extractable value. Experiments find TEE impact on rollup performance is small and that PBS does not significantly amplify it. PBS can improve performance through more specialized builder implementations.
Unconfirmed: No production rollup is reported as deployed with these measured designs.
- The study covers both PBS and monolithic sequencer models.
- TEEs are evaluated for confidentiality, integrity, and neutrality.
- Authors say PBS does not significantly amplify TEE overhead.
- Specialized builder logic under PBS can improve performance.
From the original article
1 min read at arxiv.orgLayer 2 (L2) rollups have become the dominant scaling solution in Ethereum. At the core of these systems lies the rollup sequencer, a component that orders, executes, and submits L2 transaction blocks to the main Ethereum blockchain. The centralization of this sequencer introduces security risks, including censorship and malicious manipulation of transactions to extract maximum extractable value (MEV).
By Claudiu-Nicu Bărbieru · arxiv.org
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