signer-stronghold

An Ethereum signer for a Stronghold.

What is a Stronghold?

From the documentation:

The Stronghold is a secure storage for sensitive data. Secrets that are stored inside a Stronghold can never be read, but only be accessed via cryptographic procedures. Data inside a Stronghold is heavily protected by the Runtime by either being encrypted at rest, having kernel supplied memory guards, that prevent memory dumps, or a combination of both. The Stronghold also persists data written into a Stronghold by creating Snapshots of the current state. The Snapshot itself is encrypted and can be accessed by a key.

Learn more here

Usage

## treat this environment variable with the same care as a private key

export PASSPHRASE=$(openssl rand -hex 48) # or whatever you want

Basic Usage

use signer_stronghold::StrongholdSigner;

let chain_id = Some(1);
let signer = StrongholdSigner::new(chain_id).unwrap();

let message = vec![0, 1, 2, 3];

let sig = signer.sign_message(&message).await.unwrap();
assert_eq!(sig.recover_address_from_msg(message).unwrap(), signer.address());

With Custom Path

use signer_stronghold::StrongholdSigner;
use std::path::PathBuf;

let chain_id = Some(1);
let custom_path = PathBuf::from("/path/to/my_custom.stronghold");
let signer = StrongholdSigner::new_from_path(custom_path, chain_id).unwrap();

// Use signer just like the default one
let message = vec![0, 1, 2, 3];
let sig = signer.sign_message(&message).await.unwrap();

License

This project is licensed under the MIT License - see the LICENSE-MIT file for details.