Enum CurveWeakness 

pub enum CurveWeakness {
    Anomalous,
    Supersingular,
    SmoothOrder {
        largest_prime_factor: u64,
    },
}

The known STRUCTURAL weaknesses that make an elliptic curve’s ECDLP breakable — the symmetries a sound curve must avoid.

Variants

Anomalous

#E(𝔽_p) = p (trace 1): anomalous — Smart’s attack solves the ECDLP in polynomial time.

Supersingular

#E(𝔽_p) = p + 1 (trace 0): supersingular — small embedding degree; MOV maps to a sub-exp DLP.

SmoothOrder

The order’s largest prime factor is small: Pohlig–Hellman shrinks the ECDLP to that subgroup.

Fields

largest_prime_factor: u64

Trait Implementations

impl Clone for CurveWeakness

fn clone(&self) -> CurveWeakness

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CurveWeakness

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

Formats the value using the given formatter.

impl PartialEq for CurveWeakness

fn eq(&self, other: &CurveWeakness) -> 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 Eq for CurveWeakness

impl StructuralPartialEq for CurveWeakness