Universal Rust Etheruem signature verification with ERC-6492

This crate verifies any Ethereum signature including:

• EOAs
• Smart contract wallets with ERC-1271
• Predeploy contract wallets with ERC-6492

This crate is implemented using a single eth_call RPC request, and is described in the off-chain validation section of the ERC-6492 spec.

Install

cargo add erc6492 --git https://github.com/reown-com/erc6492

or

erc6492 = { git = "https://github.com/reown-com/erc6492.git" }

We recommend pinning to a commit ref to avoid unexpected breaking changes while in v0.

We will publish to crates.io soon.

Usage

This crate uses Alloy and requires an RPC provider in order to verify all signature types.

let address = address!("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA");
let message = eip191_hash_message("Hello, world!");
let signature = bytes!("aaaa");
let provider = ReqwestProvider::<Ethereum>::new_http("https://rpc.example.com".parse().unwrap());

let verification = verify_signature(signature, address, message, provider).await.unwrap();
if verification.is_valid() {
    // signature valid
}

See doctest on verify_signature() and test cases in src/lib.rs for more examples.