op-token-bridge

Optimism Bridge Contract Review of MakerDAO

MakerDAO is a decentralized stablecoin issuer behind DAI, supporting multichain expansion via carefully managed token bridges. To facilitate cross-layer interoperability, the protocol uses the OP token bridge to manage transfers between Ethereum and Optimism, maintaining strict validation of token mappings and upgradeable governance spells.

To ensure the correctness of recent updates, MakerDAO engaged Cantina for a security audits review of changes made to the OP token bridge. The audit focused on function access restrictions, mapping logic, and documentation accuracy across the L1 and L2 bridge contracts, validating fixes and improvements since prior iterations.

Cantina also provides governance-driven protocols like MakerDAO with additional protection via bug bounty programs, crowdsourced security competitions, and multisig security to secure critical token infrastructure across rollup environments.