Struct Pedersen 

pub struct Pedersen<F: PedersenParams<P>, P: CurveConfig>
where
    <P as CurveConfig>::BaseField: PrimeField,
    F::AffineRepr: AffineRepr<Config = P, BaseField = P::BaseField, ScalarField = P::ScalarField>,
{ /* private fields */ }

Pedersen hash.

Implementations

impl<F: PedersenParams<P>, P: CurveConfig> Pedersen<F, P>

where <P as CurveConfig>::BaseField: PrimeField, F::AffineRepr: AffineRepr<Config = P, BaseField = P::BaseField, ScalarField = P::ScalarField>,

pub fn new() -> Self

Creates a new Pedersen hash instance.

pub fn hash<T>(&self, x: T, y: T) -> Option<P::BaseField>

where T: Into<P::BaseField>,

Computes the Starkware version of the Pedersen hash of x and y.

The hash is defined by: PedersenParams::P_0 + x_low * PedersenParams::P_1 + x_high * PedersenParams::P_2 + y_low * PedersenParams::P_3 + y_high * PedersenParams::P_4

where x_low is the 248 low bits of x, x_high is the 4 high bits of x and similarly for y. PedersenParams::P_0, PedersenParams::P_1, PedersenParams::P_2, PedersenParams::P_3, PedersenParams::P_4 are constant points generated from the digits of pi.

Arguments

• &self - Pedersen hasher instance.
• x - The x coordinate of the point to hash.
• y - The y coordinate of the point to hash.

Trait Implementations

impl<F: Clone + PedersenParams<P>, P: Clone + CurveConfig> Clone for Pedersen<F, P>

where <P as CurveConfig>::BaseField: PrimeField, F::AffineRepr: AffineRepr<Config = P, BaseField = P::BaseField, ScalarField = P::ScalarField>,

fn clone(&self) -> Pedersen<F, P>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<F: Debug + PedersenParams<P>, P: Debug + CurveConfig> Debug for Pedersen<F, P>

where <P as CurveConfig>::BaseField: PrimeField, F::AffineRepr: AffineRepr<Config = P, BaseField = P::BaseField, ScalarField = P::ScalarField>,

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

Formats the value using the given formatter.

impl<F: PedersenParams<P>, P: CurveConfig> Default for Pedersen<F, P>

where <P as CurveConfig>::BaseField: PrimeField, F::AffineRepr: AffineRepr<Config = P, BaseField = P::BaseField, ScalarField = P::ScalarField>,

fn default() -> Self

Returns the “default value” for a type.