Enum CredentialError 

pub enum CredentialError {
    Stun(StunError),
    Malformed,
    BadSignature,
}

Errors classifying or verifying a DIG credential (SPEC.md §14.5-§14.6). Exhaustive: this type is new in 0.2.0 and consumed only within this crate and by callers matching on crate::credential::decide’s inputs, so a variant addition is tracked as an ordinary breaking change rather than absorbed silently.

Variants

Stun(StunError)

The datagram failed the crate’s ordinary Binding-request checks (SPEC.md §2.5) before a single DIG attribute was inspected — truncated, bad magic cookie, wrong message type, or a declared length that overruns the datagram.

Malformed

A DIG credential attribute violated its wire shape (§14.3.1/§14.3.2), appeared out of the required order, was duplicated, or appeared without its required companion attribute (SPEC.md §14.5). Maps to a 400 response.

BadSignature

The signature did not verify against the carried SPKI over the expected preimage (SPEC.md §14.6). Maps to a 401 challenge (SPEC.md §14.7 row 6) — a bad signature is treated exactly like an unauthenticated ask, never surfaced as a distinct wire code.

Trait Implementations

impl Clone for CredentialError

fn clone(&self) -> CredentialError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CredentialError

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

Formats the value using the given formatter.

impl Display for CredentialError

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

Formats the value using the given formatter.

impl Eq for CredentialError

impl Error for CredentialError

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 From<StunError> for CredentialError

fn from(source: StunError) -> Self

Converts to this type from the input type.

impl PartialEq for CredentialError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CredentialError