Ethereum Partners: Arbitrum Group Helps Optimists Avoid ‘High Risk’ Exposures

Competition on the chain is always present, but sometimes it is forced to help.

Offchain Labs, the core team behind Ethereum Layer-2 Measurement network Decisionrecently exposed several security issues in the testnet version OptimismA separate Ethereum layer-2 scale network created by OP Labs.

After the adjustments are implemented, the cases will be released on Friday at a Blog post Published by Offchain Labs co-founder Ed Felton. Vulnerabilities in Optimism's system could have been exploited by bad actors to contest potentially fraudulent transactions, Felton said.

Offchain Labs told OP Labs in late March that “we believe the current protocol would put user funds at very high risk if distributed on the mainnet,” adding that “example exploit code” was included for the data service. .

They are called arbitrage and optimism. Ethereum rolls, is intended to provide users with lower transaction costs by tying together sets of transactions and then transferring them to Ethereum in a structured form. In that measurement solutions section, both layer-2s are classified as “bright” packages, which assume that all transactions they process are legitimate.

Both networks are used to prevent bad actors from abusing the nature of arbitrage and optimism. Proofs of fraud. Effectively, the security model provides network participants with a window to challenge transactions and ensure authenticity through a rules-based process.

The issues identified by Ofchen Labs concerned the amount of time allotted for participants to “move” to contest transactions through Optimum's fraud prevention system. By abusing that time, a bad actor could have tricked the system into accepting a fake chain history or rejecting the real chain history, the Felton Post reported.

“The OP protocol originally deployed on the testnet was vulnerable to such denial-of-service attacks because it allowed a cheater to get undeserved time credit,” he explained. As a result, the fraud detection system did not improve security guarantees.

Offchain Labs' intervention with Optimism comes as Ethereum continues to use Layer-2s new.SpottedHe said. The data structure introduced in the latest Ethereum update allows layer-2s to post transaction costs to Ethereum data in a committed and cheap manner.

In terms of adoption, Optimism and Arbitrum are two of the largest Ethereum Layer-2s. According to Dune DashboardFor example, Arbitrum and Optimism processed 1.7 million and 600,000 transactions on Monday. Meanwhile, the Ethereum mainnet saw 1.1 million transactions.

Although the security issues may have caused headaches for users online, the crackdown on Optimism's testnet ultimately meant that no one was affected. When it comes to Layer-2s, comparable architectures look at each other, an OP Labs spokesperson said. Decrypt Offchain Labs' latest entry was still highly rated.

A spokesperson said in a statement: “We always appreciate when teams take the time. “It's a critical part of the development process.”

Edited by Ryan Ozawa.