Current Minimum Supported Rust Version: v1.65.0
/// HWI is the common Hardware Wallet Interface.
#[async_trait]
pub trait HWI: Debug {
/// 0. Return the device kind
fn device_kind(&self) -> DeviceKind;
/// 1. Application version or OS version.
async fn get_version(&self) -> Result<Version, Error>;
/// 2. Get master fingerprint.
async fn get_master_fingerprint(&self) -> Result<Fingerprint, Error>;
/// 3. Get the xpub with the given derivation path.
async fn get_extended_pubkey(&self, path: &DerivationPath) -> Result<Xpub, Error>;
/// 4. Register a new wallet policy
async fn register_wallet(&self, name: &str, policy: &str) -> Result<Option<[u8; 32]>, Error>;
/// 5. Returns true if the wallet is registered
async fn is_wallet_registered(&self, name: &str, policy: &str) -> Result<bool, HWIError>;
/// 6. Display an address on the device screen
async fn display_address(&self, script: &AddressScript) -> Result<(), Error>;
/// 7. Sign a partially signed bitcoin transaction (PSBT).
async fn sign_tx(&self, tx: &mut Psbt) -> Result<(), Error>;
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum AddressScript {
/// Must be a bip86 path.
P2TR(DerivationPath),
/// Miniscript requires the policy be loaded into the device.
Miniscript { index: u32, change: bool },
}A Empty case means the method is unimplemented on the client or device side.
| device | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| BitBox021 | >= v9.15.0 | >= v9.15.0 | >= v9.15.0 | >= v9.15.0 | >= v9.15.0 | >= v9.15.0 | >= v9.15.0 |
| Coldcard2 | >= v6.2.1X | >= v6.2.1X | >= v6.2.1X | >= v6.2.1X | >= v6.2.1X | >= v6.2.1X | >= v6.2.1X |
| Jade3 | >= v1.0.30 | >= v1.0.30 | >= v1.0.30 | >= v1.0.30 | >= v1.0.30 | >= v1.0.30 | >= v1.0.30 |
| Ledger Nano S/S+4 | >= v2.1.2 | >= v2.1.2 | >= v2.1.2 | >= v2.1.2 | *check hmac presence | >= v2.1.2 | >= v2.1.2 |
| Specter5 | >= v1.8.0 | >= v1.8.0 | >= v1.8.0 | >= v1.8.0 |