Enum DecryptError 

pub enum DecryptError<E, C = Infallible> {
    Cipher(C),
    Auth,
    Malformed,
    Sink(E),
}

Why decryption failed.

E is the sink’s error, C the cipher’s. walk involves no cipher, so its C is Infallible.

The cipher’s and the sink’s errors are printed in the message rather than chained as the source(), so neither type need implement Error.

Variants

Cipher(C)

The cipher refused a leaf. For an AEAD that is a wrong key, a wrong AAD or a tampered leaf; a remote provider’s error type also tells an outage apart.

Auth

An authenticated empty marker carried a payload: tampering the cipher could not see.

Malformed

The tree or a leaf’s plaintext is not well formed, or the cipher returned the wrong number of leaves.

Sink(E)

The sink refused what it was given (a typed sink got the wrong kind, a host builder failed).

Implementations

impl<E> DecryptError<E>

pub fn with_cipher<C>(self) -> DecryptError<E, C>

The same failure, under any cipher error type: a walk’s error, as one step of a decryption.

Trait Implementations

impl<E: Debug, C: Debug> Debug for DecryptError<E, C>

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

Formats the value using the given formatter.

impl<E, C> Display for DecryptError<E, C>

where C: Display, E: Display,

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

Formats the value using the given formatter.

impl<E, C> Error for DecryptError<E, C>

where Self: Debug + Display,

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.

impl<E: Error, C> Error for DecryptError<E, C>

Lets a ? on a sink error inside walk also accept source errors.

fn source(error: SourceError) -> Self

Wrap a failure that came from the source, not the sink.

impl<E, C> From<E> for DecryptError<E, C>

fn from(e: E) -> Self

Converts to this type from the input type.