Enum SignatureAlgorithm 

pub enum SignatureAlgorithm {
    Ed25519,
    MlDsa65,
    SlhDsaSha2_128s,
    HybridEd25519MlDsa65,
}

Signature algorithms named by BCX metadata.

Variants

Ed25519

Ed25519 for compact classical signatures.

MlDsa65

ML-DSA-65 for post-quantum-ready deployments.

SlhDsaSha2_128s

SLH-DSA-SHA2-128s for conservative stateless signatures.

HybridEd25519MlDsa65

Hybrid Ed25519 plus ML-DSA-65 signature envelope.

Canonical layout is [ed25519: 64 bytes][ml-dsa-65: 3293 bytes]. Verifiers must verify both components before returning Ok.

Implementations

impl SignatureAlgorithm

pub const ED25519_SIGNATURE_LEN: usize = 64

Ed25519 signature byte length.

pub const ML_DSA_65_SIGNATURE_LEN: usize = 3_293

ML-DSA-65 signature byte length.

pub const SLH_DSA_SHA2_128S_SIGNATURE_LEN: usize = 7_856

SLH-DSA-SHA2-128s signature byte length.

pub const HYBRID_ED25519_ML_DSA_65_SIGNATURE_LEN: usize

Hybrid Ed25519 plus ML-DSA-65 signature byte length.

pub const fn expected_signature_len(self) -> usize

Returns the exact signature length admitted for this algorithm.

pub fn split_hybrid(self, signature: &[u8]) -> Option<(&[u8], &[u8])>

Splits a hybrid signature into Ed25519 and ML-DSA-65 components.

Layout: [ed25519: 64 bytes][ml-dsa-65: 3293 bytes]. Verifiers for HybridEd25519MlDsa65 must verify both returned components.

Trait Implementations

impl Clone for SignatureAlgorithm

fn clone(&self) -> SignatureAlgorithm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SignatureAlgorithm

impl Debug for SignatureAlgorithm

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

Formats the value using the given formatter.

impl Eq for SignatureAlgorithm

impl PartialEq for SignatureAlgorithm

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