Enum Error 

#[non_exhaustive]
pub enum Error {
    InvalidConfiguration,
    LimitExceeded,
    MalformedEnvelope,
    UnsupportedVersion,
    UnsupportedSuite,
    UnsupportedMethod,
    UnknownRecipientKey,
    InvalidCredential,
    AuthenticationFailed,
    ReplayRejected,
    InvalidRequestTime,
    ReplayDecisionMismatch,
    ClockUnavailable,
    EntropyUnavailable,
    CryptoFailure,
}

Errors returned by the protocol engine.

Messages contain no credentials, plaintext, ciphertext, or parser offsets.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidConfiguration

Configuration is missing, inconsistent, or outside the protocol limits.

LimitExceeded

A caller-provided value exceeds a configured or hard protocol limit.

MalformedEnvelope

The envelope is truncated, has trailing data, or has an invalid field.

UnsupportedVersion

The envelope uses a protocol version this implementation does not support.

UnsupportedSuite

The envelope names a cryptographic suite outside protocol version 3.

UnsupportedMethod

The request uses an HTTP method outside protocol version 3.

UnknownRecipientKey

The request names a recipient key that is not configured on this server.

InvalidCredential

A supplied PSK violates the credential length or public-ID rules.

AuthenticationFailed

An authenticated operation failed.

ReplayRejected

The replay-admission provider rejected this authenticated request.

InvalidRequestTime

The authenticated request timestamp is expired or too far in the future.

ReplayDecisionMismatch

A replay decision was created for another authenticated request.

ClockUnavailable

The platform could not provide a usable Unix time.

EntropyUnavailable

The platform could not provide cryptographically secure entropy.

CryptoFailure

A cryptographic primitive rejected otherwise bounded input.

Implementations

impl Error

pub const fn code(self) -> &'static str

Return the stable language-neutral error code.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Error

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Eq for Error

impl Error for Error

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 PartialEq for Error

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Error