Enum SessionError 

pub enum SessionError {
    Inauthentic,
    Replayed,
}

What can go wrong opening a sealed message on a session.

Sealing never fails, so this only describes the receive side. The two cases are kept distinct on purpose: a forged or corrupted message is an attack or a wire fault, while a replayed message is a captured-and-resent valid message, and an operator may want to react to them differently.

Variants

Inauthentic

The message did not authenticate: its tag does not match, so it was altered in flight, was sealed under a different key, or is an outright forgery. The plaintext is never revealed in this case.

Replayed

The message’s counter has already been seen, or is older than the replay window still tracks, so it is a replay of a message already accepted (or one too old to prove is not). It is rejected without revealing the plaintext.

Trait Implementations

impl Clone for SessionError

fn clone(&self) -> SessionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SessionError

impl Debug for SessionError

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

Formats the value using the given formatter.

impl Display for SessionError

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

Formats the value using the given formatter.

impl Eq for SessionError

impl Error for SessionError

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 SessionError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SessionError