Crate siwx_evm 

siwx-evm — Ethereum verification for Sign-In with X

Implements CAIP-122 namespace profile for EIP-155 chains:

• EIP-191 (personal_sign) — ECDSA recovery-based verification
• EIP-1271 — smart-contract isValidSignature verification (requires RPC)

Quick start

use siwx::SiwxMessage;
use siwx_evm::{Eip191Verifier, CHAIN_NAME};
use siwx::Verifier;

let message = SiwxMessage::new(
    "example.com",
    "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
    "https://example.com/login",
    "1",
    "1",
)?;
let text = siwx_evm::format_message(&message);
// let signature_bytes: [u8; 65] = ...; // from wallet
// Eip191Verifier.verify(&message, &signature_bytes).await?;

Structs

Eip191Verifier

EIP-191 personal_sign verifier.

Eip1271Verifier

EIP-1271 smart-contract signature verifier.

EvmVerifier

Auto-detecting verifier that tries EIP-191 first; if the recovered address does not match message.address, falls back to EIP-1271.

Constants

CHAIN_NAME

Human-readable chain name for the EIP-155 namespace, used in the CAIP-122 preamble line.

SIG_TYPE_EIP191

CAIP-122 signature type for EIP-191 personal_sign.

SIG_TYPE_EIP1271

CAIP-122 signature type for EIP-1271 contract signatures.

Functions

format_message

Convenience: format a SiwxMessage into the EIP-4361 signing string.

validate_address

Validate that address is a well-formed 0x-prefixed, 40-hex-char Ethereum address.