Enum AlgorithmClass 

pub enum AlgorithmClass {
    Broken,
    ClassicalQuantumVulnerable,
    Symmetric,
    Sha2,
    Sha3,
    OtherHash,
    PostQuantum(PqcKind),
    Unknown,
}

Coarse security class produced by classify_algorithm.

Variants

Broken

Classically broken or disallowed per SP 800-131A (MD5, SHA-1, DES, 3DES, RC2, RC4, Blowfish, IDEA, CAST5, …).

ClassicalQuantumVulnerable

Classical public-key algorithm broken by Shor’s algorithm (RSA, DSA, DH/DHE, ECDH/ECDHE, ECDSA, EdDSA/Ed25519/Ed448, X25519/X448, ElGamal, ECIES, ECMQV, generic EC/ECC).

Symmetric

Modern symmetric cipher (AES, ChaCha20, Camellia, ARIA, …); strength judgments (e.g., CNSA 2.0’s AES-256-only rule) are up to the caller.

Sha2

SHA-2 family hash; the digest size, when known, is in parameter.

Sha3

SHA-3 family hash/XOF (SHA3-*, SHAKE, Keccak).

OtherHash

Recognized modern hash outside the SHA-2/SHA-3 families (SM3, GOST R 34.11 “Streebog”, …) — not broken, but not on approval lists such as CNSA 2.0.

PostQuantum(PqcKind)

Post-quantum algorithm; the parameter set, when known, is in parameter (e.g., “1024” for ML-KEM-1024, “87” for ML-DSA-87).

Unknown

Not recognized — callers should treat as “cannot verify”, never as implicitly compliant.

Implementations

impl AlgorithmClass

pub const fn severity_rank(self) -> u8

Rank for “report the most severe mention” selection (higher is worse): Broken > ClassicalQuantumVulnerable > recognized symmetric/hash (not necessarily approved) > post-quantum > Unknown. Used to pick the worst algorithm out of multi-algorithm identities like “sha384-rsa-cert-chain”, where reporting the first token (SHA-384, CNSA-approved) would hide the quantum-vulnerable RSA.

Trait Implementations

impl Clone for AlgorithmClass

fn clone(&self) -> AlgorithmClass

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AlgorithmClass

impl Debug for AlgorithmClass

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

Formats the value using the given formatter.

impl Eq for AlgorithmClass

impl Hash for AlgorithmClass

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for AlgorithmClass

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AlgorithmClass