Enum Error 

pub enum Error {
    InvalidKeyLen,
    InvalidNonceLen,
    NotInitialized,
    AlreadyFinalized,
    OutputBufferTooSmall {
        needed: usize,
    },
    WrongInitVariant,
    VerificationFailed,
}

Errors returned by Mac.

Variants

InvalidKeyLen

CMAC / GMAC: the supplied key length does not match the algorithm.

InvalidNonceLen

GMAC: the supplied nonce length is not 12 bytes.

NotInitialized

update, sign or verify was called before Mac::init.

AlreadyFinalized

update, sign or verify was called after a previous sign / verify without re-initializing.

OutputBufferTooSmall

out slice passed to sign is shorter than the algorithm’s tag length.

Fields

needed: usize

Required output length in bytes.

WrongInitVariant

Wrong init variant for the selected algorithm (e.g. init_with_nonce on HMAC, or init on GMAC).

VerificationFailed

verify failed: tag mismatch.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl PartialEq for Error

fn eq(&self, other: &Error) -> 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 Copy for Error

impl Eq for Error

impl StructuralPartialEq for Error