Enum Error 

pub enum Error {
    SigningFailed,
    InvalidFormat,
    VerificationFailed,
}

Available on crate feature sign only.

Errors that can occur during SWing signing or verification.

All variants implement core::fmt::Display for ergonomic error propagation.

Example

use b_wing::{SWing, SignError};
let bad_vk = vec![0u8; 10]; // wrong size
assert_eq!(
    SWing::verify(&bad_vk, b"msg", b"ctx", &vec![0u8; SWing::SIGNATURE_SIZE]),
    Err(SignError::InvalidFormat),
);

Variants

SigningFailed

One of the three underlying signing primitives returned an error.

This is unexpected under normal operation; it may indicate an issue with the caller-supplied random_seed or an upstream library fault.

InvalidFormat

A key, signature, or seed was the wrong length or could not be parsed.

Expected sizes: SWing::VERIFICATION_KEY_SIZE and SWing::SIGNATURE_SIZE.

VerificationFailed

The composite signature failed cryptographic verification.

This is returned as soon as any sub-signature fails; the remaining layers are not evaluated (fail-fast behaviour).

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 Display 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