Enum NistBackend 

pub enum NistBackend {
    Ifma,
    MulxAdx,
    Portable,
}

The implementation P-256’s and P-384’s scalar multiplications run on here.

A published vector passes whichever implementation runs, so it cannot tell which one did; this can. P-521 runs the generic field everywhere.

Variants

Ifma

Four field elements at once on AVX-512 IFMA (x86-64): ECDH’s, a prepared key’s and ECDSA signing’s scalar multiplications; the rest, verification among it, on MULX/ADX.

MulxAdx

The field and the point formulas in MULX/ADCX/ADOX assembly (x86-64 with BMI2 and ADX).

Portable

Without BMI2 and ADX: on x86-64 P-256’s field in baseline MUL/ADC assembly and P-384’s generic word loop; elsewhere the portable arithmetic.

Trait Implementations

impl Clone for NistBackend

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NistBackend

impl Debug for NistBackend

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

Formats the value using the given formatter.

impl Eq for NistBackend

impl PartialEq for NistBackend

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for NistBackend