Enum CredentialError 

pub enum CredentialError {
    Malformed,
    BadSignature,
    NotYetValid,
    Expired,
    UnsupportedVersion(u16),
    BadSubjectKey,
    UnknownIssuer,
    WrongTrustDomain,
}

Reasons a credential fails to parse or verify. tag() yields a stable machine string for structured logging + JSON error bodies (mirrors federation::signing::VerifyError).

Variants

Malformed

Wire bytes (or base64) could not be parsed into the expected shape.

BadSignature

The issuer signature did not verify against the trust bundle.

NotYetValid

now < not_before — the credential is not yet valid.

Expired

now > not_after — the credential has expired.

UnsupportedVersion(u16)

The credential’s cred_version is newer than this binary understands.

BadSubjectKey

subject_pubkey is not a valid Edwards-curve point.

UnknownIssuer

The credential’s issuer_id is not present in the trust bundle, so no key is available to verify its signature against.

WrongTrustDomain

The credential’s trust_domain does not match the domain the receiving trust bundle is scoped to (multi-tenant isolation).

Implementations

impl CredentialError

pub fn tag(&self) -> &'static str

Stable machine-readable tag for logs + JSON error envelopes.

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, f: &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<CredentialError> for ChainError

fn from(e: CredentialError) -> Self

Converts to this type from the input type.

impl From<CredentialError> for IssuerError

fn from(e: CredentialError) -> Self

Converts to this type from the input type.

impl PartialEq for CredentialError

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