Struct ScdBackend

pub struct ScdBackend { /* private fields */ }

An implementation of the CardBackend trait that uses GnuPG’s scdaemon (via GnuPG Agent) to access smart cards.

Implementations

impl ScdBackend

pub fn open_by_serial( agent: Option<Agent>, serial: &str, ) -> Result<Self, SmartcardError>

Request card with AID serial from scdaemon, and return it as a ScdBackend.

The client may provide a GnuPG agent to use.

pub fn open_yolo(agent: Option<Agent>) -> Result<Self, SmartcardError>

Open a CardApp that uses an scdaemon instance as its backend.

If multiple cards are available, scdaemon implicitly selects one.

(NOTE: implicitly picking an unspecified card might be a bad idea. You might want to avoid using this function, or check which card you received.)

pub fn shutdown_scd(agent: Option<Agent>) -> Result<(), SmartcardError>

Helper fn that shuts down scdaemon via GnuPG Agent. This may be useful to obtain access to a Smard card via PCSC.

Trait Implementations

impl CardBackend for ScdBackend

fn limit_card_caps(&self, card_caps: CardCaps) -> CardCaps

If a CardBackend introduces a additional (possibly backend-specific) limits for any fields in CardCaps, this fn can indicate that limit by returning an amended CardCaps.

fn transaction( &mut self, _reselect_application: Option<&[u8]>, ) -> Result<Box<dyn CardTransaction + Send + Sync + '_>, SmartcardError>

impl From<ScdBackend> for Box<dyn CardBackend + Sync + Send>

Boxing helper (for easier consumption of PcscBackend in openpgp_card and openpgp_card_sequoia)

fn from(backend: ScdBackend) -> Box<dyn CardBackend + Sync + Send>

Converts to this type from the input type.