Struct groupy::Wnaf

pub struct Wnaf<W, B, S> { /* fields omitted */ }

A “w-ary non-adjacent form” exponentiation context.

Implementations

impl<G: CurveProjective> Wnaf<(), Vec<G>, Vec<i64>>

pub fn new() -> Self

Construct a new wNAF context without allocating.

pub fn base(
    &mut self,
    base: G,
    num_scalars: usize
) -> Wnaf<usize, &[G], &mut Vec<i64>>

Given a base and a number of scalars, compute a window table and return a Wnaf object that can perform exponentiations with .scalar(..).

pub fn scalar(
    &mut self,
    scalar: <<G as CurveProjective>::Scalar as PrimeField>::Repr
) -> Wnaf<usize, &mut Vec<G>, &[i64]>

Given a scalar, compute its wNAF representation and return a Wnaf object that can perform exponentiations with .base(..).

impl<'a, G: CurveProjective> Wnaf<usize, &'a [G], &'a mut Vec<i64>>

pub fn shared(&self) -> Wnaf<usize, &'a [G], Vec<i64>>

Constructs new space for the scalar representation while borrowing the computed window table, for sending the window table across threads.

impl<'a, G: CurveProjective> Wnaf<usize, &'a mut Vec<G>, &'a [i64]>

pub fn shared(&self) -> Wnaf<usize, Vec<G>, &'a [i64]>

Constructs new space for the window table while borrowing the computed scalar representation, for sending the scalar representation across threads.

impl<B, S: AsRef<[i64]>> Wnaf<usize, B, S>

pub fn base<G: CurveProjective>(&mut self, base: G) -> G where
    B: AsMut<Vec<G>>, 

Performs exponentiation given a base.

impl<B, S: AsMut<Vec<i64>>> Wnaf<usize, B, S>

pub fn scalar<G: CurveProjective>(
    &mut self,
    scalar: <<G as CurveProjective>::Scalar as PrimeField>::Repr
) -> G where
    B: AsRef<[G]>, 

Performs exponentiation given a scalar.

Trait Implementations

impl<W: Debug, B: Debug, S: Debug> Debug for Wnaf<W, B, S>

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

Formats the value using the given formatter.