Struct Poseidon1 

pub struct Poseidon1<F, FullRoundPerm, PartialRoundPerm, const WIDTH: usize, const D: u64> { /* private fields */ }

The optimized Poseidon1 permutation.

Holds the pre-computed full and partial round layers and applies them in sequence: initial full rounds, then partial rounds, then terminal full rounds.

Implementations

impl<F, FullRoundPerm, PartialRoundPerm, const WIDTH: usize, const D: u64> Poseidon1<F, FullRoundPerm, PartialRoundPerm, WIDTH, D>

where F: PrimeField, FullRoundPerm: FullRoundLayerConstructor<F, WIDTH>, PartialRoundPerm: PartialRoundLayerConstructor<F, WIDTH>,

pub fn new(raw: &Poseidon1Constants<F, WIDTH>) -> Self

Create a new optimized Poseidon1 from raw constants.

Internally computes the sparse matrix decomposition and the optimized round constants. This is the typical entry point.

pub fn new_from_rng( half_num_full_rounds: usize, num_partial_rounds: usize, mds: &impl Permutation<[F; WIDTH]>, rng: &mut impl Rng, ) -> Self

where StandardUniform: Distribution<F>,

Create a new Poseidon1 with random round constants and a given MDS permutation.

Builds the dense MDS matrix by applying the permutation to unit vectors, generates random round constants, and computes the sparse matrix decomposition.

Primarily useful for testing.

Trait Implementations

impl<F: Clone, FullRoundPerm: Clone, PartialRoundPerm: Clone, const WIDTH: usize, const D: u64> Clone for Poseidon1<F, FullRoundPerm, PartialRoundPerm, WIDTH, D>

fn clone(&self) -> Poseidon1<F, FullRoundPerm, PartialRoundPerm, WIDTH, D>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<F: Debug, FullRoundPerm: Debug, PartialRoundPerm: Debug, const WIDTH: usize, const D: u64> Debug for Poseidon1<F, FullRoundPerm, PartialRoundPerm, WIDTH, D>

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

Formats the value using the given formatter.

impl<F, A, FullRoundPerm, PartialRoundPerm, const WIDTH: usize, const D: u64> Permutation<[A; WIDTH]> for Poseidon1<F, FullRoundPerm, PartialRoundPerm, WIDTH, D>

where F: PrimeField + InjectiveMonomial<D>, A: Algebra<F> + Sync + InjectiveMonomial<D>, FullRoundPerm: FullRoundLayer<A, WIDTH, D>, PartialRoundPerm: PartialRoundLayer<A, WIDTH, D>,

fn permute_mut(&self, state: &mut [A; WIDTH])

fn permute(&self, input: T) -> T

impl<F, A, FullRoundPerm, PartialRoundPerm, const WIDTH: usize, const D: u64> CryptographicPermutation<[A; WIDTH]> for Poseidon1<F, FullRoundPerm, PartialRoundPerm, WIDTH, D>

where F: PrimeField + InjectiveMonomial<D>, A: Algebra<F> + Sync + InjectiveMonomial<D>, FullRoundPerm: FullRoundLayer<A, WIDTH, D>, PartialRoundPerm: PartialRoundLayer<A, WIDTH, D>,