Enum SigError 

pub enum SigError {
    KeyGeneration(String),
    Signing(String),
    VerificationFailed,
    InvalidPublicKey(String),
    InvalidSecretKey(String),
    InvalidSignature(String),
    Base64Decode(String),
    Serialization(String),
    AlgorithmNotAvailable {
        name: String,
        feature: String,
    },
    HybridClassicalFailed,
    HybridPqcFailed,
    Internal(String),
    ContextTooLong {
        len: usize,
    },
    InvalidDigestLength {
        hash: &'static str,
        expected: usize,
        got: usize,
    },
    PreHashTooWeak {
        hash: &'static str,
        strength: u32,
        algorithm: &'static str,
        required: u32,
    },
}

Canonical algorithm-labelled signature transport types supplied by pqc-sig. They are representations and encoders only; this SDK continues to perform signing and verification through its embedded aethel-core component. Errors that can occur during signature operations.

Variants

KeyGeneration(String)

Key generation failed (e.g., RNG failure).

Signing(String)

Signing operation failed.

VerificationFailed

Signature verification failed (signature is invalid for the given message/key).

InvalidPublicKey(String)

Invalid public key (wrong size, wrong algorithm tag, or malformed).

InvalidSecretKey(String)

Invalid secret key (wrong size, wrong algorithm tag, or malformed).

InvalidSignature(String)

Invalid signature (wrong size, wrong algorithm tag, or malformed).

Base64Decode(String)

Base64 decoding error.

Serialization(String)

JSON serialization/deserialization error.

AlgorithmNotAvailable

The requested algorithm is not available (feature not enabled).

Fields

name: String

feature: String

HybridClassicalFailed

Hybrid signature verification failed on the classical (Ed25519) side.

HybridPqcFailed

Hybrid signature verification failed on the post-quantum (ML-DSA) side.

Internal(String)

Generic internal error.

ContextTooLong

Domain-separation context string exceeds the FIPS 204/205/206 255-byte maximum.

FIPS 204 §5.2, FIPS 205 §10.2, and the FIPS 206 (draft) DomainContext construction all encode the context length in a single byte, capping it at 255 bytes. Returned by every sign_ctx/sign_ctx_deterministic/verify_ctx method before it would otherwise hit an opaque error from the underlying ml-dsa/slh-dsa/fn-dsa crate.

Fields

len: usize

InvalidDigestLength

Pre-hash digest length does not match the expected output size of the named hash function (FIPS 204 §5.4.1 / FIPS 205 §10.2.2).

Returned by every sign_prehash/sign_prehash_deterministic/verify_prehash method before it would otherwise sign/verify a malformed digest.

Fields

hash: &'static str

expected: usize

got: usize

PreHashTooWeak

Pre-hash collision strength is weaker than the signature algorithm’s required security strength (FIPS 204 §5.4 / FIPS 205 §10.2.2).

For example, PreHash::Sha256 (128-bit collision strength) is rejected for MlDsa65Keypair/MlDsa87Keypair (192/256-bit security strength).

Fields

hash: &'static str

strength: u32

algorithm: &'static str

required: u32

Implementations

impl SigError

pub fn to_wasm_string(&self) -> String

Convert to a string suitable for crossing the WASM boundary.

Trait Implementations

impl Clone for SigError

fn clone(&self) -> SigError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SigError

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

Formats the value using the given formatter.

impl Display for SigError

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

Formats the value using the given formatter.

impl Error for SigError

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<SigError> for Error

fn from(e: SigError) -> Self

Converts to this type from the input type.

impl PartialEq for SigError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SigError