EIP-712 domain separator missing chainId

SUNSwap (sun.io)'s assessment for RD-F-020 — scored not_applicable on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

V2/V3/V4 AMM core contracts do not use EIP-712 signed messages for core swap operations. Permit2 integration exists in V4 periphery but is a separate surface not in the core factory/pair/router/pool scope.

Sources #

GitHub
SUNSwap V2 contractssunswap-v2-contracts — no EIP-712 in core AMMretrieved 2026-05-17

Methodology #

Determine whether the EIP-712 domain separator struct omits the `chainId` field, allowing cross-chain replay.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol sunswap factor RD-F-020 score not_applicable collected_at 2026-05-17 14:37:31