ethers-rs/ethers-signers
Georgios Konstantopoulos 18a049b4c4
chore: bump crypto deps (#2260)
* chore(core): bump k256

* fix: use correct recovery api

* fix(signers): use correct apis

* chore(signers): bump elliptic curve

* feat: use PreHashSigner

* feat: bump yubihsm and adjust for breakages

* chore: clippy
2023-03-14 23:13:46 -07:00
..
src chore: bump crypto deps (#2260) 2023-03-14 23:13:46 -07:00
Cargo.toml chore: bump crypto deps (#2260) 2023-03-14 23:13:46 -07:00
README.md docs: fix broken links, update documentation (#2203) 2023-02-27 13:03:17 -07:00

README.md

ethers-signers

A unified interface for locally signing transactions.

You can implement the Signer trait to extend functionality to other signers such as Hardware Security Modules, KMS etc.

The exposed interfaces return a recoverable signature. In order to convert the signature and the TransactionRequest to a Transaction, look at the signing middleware.

Supported signers:

For more information, please refer to the book.

Examples

# use ethers_signers::{LocalWallet, Signer};
# use ethers_core::{k256::ecdsa::SigningKey, types::TransactionRequest};
# async fn foo() -> Result<(), Box<dyn std::error::Error>> {
// instantiate the wallet
let wallet = "dcf2cbdd171a21c480aa7f53d77f31bb102282b3ff099c78e3118b37348c72f7"
    .parse::<LocalWallet>()?;

// create a transaction
let tx = TransactionRequest::new()
    .to("vitalik.eth") // this will use ENS
    .value(10000).into();

// sign it
let signature = wallet.sign_transaction(&tx).await?;

// can also sign a message
let signature = wallet.sign_message("hello world").await?;
signature.verify("hello world", wallet.address()).unwrap();
# Ok(())
# }

Sign an Ethereum prefixed message (eip-712):

# use ethers_signers::{Signer, LocalWallet};
# async fn foo() -> Result<(), Box<dyn std::error::Error>> {
let message = "Some data";
let wallet = LocalWallet::new(&mut rand::thread_rng());

// Sign the message
let signature = wallet.sign_message(message).await?;

// Recover the signer from the message
let recovered = signature.recover(message)?;

assert_eq!(recovered, wallet.address());
# Ok(())
# }