Enum CodecError 

#[non_exhaustive]
pub enum CodecError {
    Malformed,
    SignatureMismatch,
    Expired,
    Crypto(String),
    Serde(Error),
    MissingKid,
    UnknownKid(String),
}

Errors returned by TokenMinter::mint and TokenVerifier::verify.

A coarse-grained shape: callers usually only care whether the token was rejected, not why. R007-T4 lands the workspace-wide error hierarchy and this enum is re-exported from there. The crypto-library mapping (a pasetors::errors::Error → CodecError) lives with the concrete codecs in cheers-verify/cheers-server, since the orphan rule forbids it here without pulling a crypto dependency into this keyless crate.

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.

Malformed

Token bytes did not parse as the expected format.

SignatureMismatch

Signature / MAC / AEAD tag did not verify against the key.

Expired

Token parsed and verified but expires_at has passed.

Crypto(String)

Underlying crypto library failure (key invalid, RNG, …).

Serde(Error)

JSON (de)serialization of the claim payload failed.

MissingKid

The wire convention requires kid in the PASETO footer (R592-B7) — this token has no footer at all.

UnknownKid(String)

The footer carries a kid the verifier doesn’t recognize/trust.

Trait Implementations

impl Debug for CodecError

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

Formats the value using the given formatter.

impl Display for CodecError

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

Formats the value using the given formatter.

impl Error for CodecError

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<CodecError> for Error

fn from(source: CodecError) -> Self

Converts to this type from the input type.

impl From<Error> for CodecError

fn from(source: Error) -> Self

Converts to this type from the input type.