Struct DeviceKey 

pub struct DeviceKey(/* private fields */);

A device’s private signing key. Generated on the device and never sent anywhere.

Implementations

impl DeviceKey

pub fn generate() -> Self

A new random key.

pub fn from_seed(seed: [u8; 32]) -> Self

The key made from seed, as stored in device.key.

pub fn seed(&self) -> [u8; 32]

The 32 secret bytes everything else derives from; what to store.

pub fn load(path: &Path) -> Result<Option<Self>>

Reads a key saved with DeviceKey::save; None if there’s no such file.

pub fn save(&self, path: &Path) -> Result<()>

Writes the seed to path, readable by the owner only. Refuses to overwrite an existing key.

pub fn keypair_bytes(&self) -> [u8; 64]

Seed and public key, as PASETO v4 secret keys are laid out.

pub fn public(&self) -> PublicKey

The key others check this device’s signatures with.

pub fn sign( &self, purpose: Purpose, value: &impl Serialize, ) -> Result<Signature, AuthError>

Signs value for purpose (see the crate’s docs for what is signed).

Trait Implementations

impl Debug for DeviceKey

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.