Enum KeyError 

pub enum KeyError {
    Memory(Error),
    Read(Error),
    WrongSize,
    Damaged,
}

Why a key could not be made.

Variants

Memory(Error)

The key’s memory could not be locked or kept out of core dumps.

Read(Error)

The master key file could not be opened or read.

WrongSize

The master key file does not hold exactly 32 bytes.

Damaged

A wrapped key did not open. Like OpenError, it does not say which part was wrong.

Trait Implementations

impl Debug for KeyError

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

Formats the value using the given formatter.

impl Display for KeyError

The I/O error itself is given by source, not repeated here.

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

Formats the value using the given formatter.

impl Error for KeyError

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.