Enum SecureStoreError 

pub enum SecureStoreError {
    Unavailable(String),
    Backend(String),
}

Why a SecureStore could not produce a key.

Variants

Unavailable(String)

This platform or build has no secure storage to hold the key. A caller that meets this must not silently fall back to an unprotected key — that would look like anchor B while being none. It should use the unsealed path (which makes no rollback claim) and say so. A store that exists but cannot be reached right now (a Keychain before first unlock, a Keystore that needs the user) is this too, with the reason: the client reports it as its own kind, so the app can retry after the unlock rather than treat it as tampering.

Backend(String)

The secure-storage backend was present but failed. The string is for a log line, not for matching on.

Trait Implementations

impl Debug for SecureStoreError

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

Formats the value using the given formatter.

impl Display for SecureStoreError

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

Formats the value using the given formatter.

impl Error for SecureStoreError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.