Struct light_poseidon::Poseidon

pub struct Poseidon<F: PrimeField> { /* private fields */ }

A stateful sponge performing Poseidon hash computation.

Implementations

impl<F: PrimeField> Poseidon<F>

pub fn new(params: PoseidonParameters<F>) -> Self

Returns a new Poseidon hasher based on the given parameters.

Optionally, a domain tag can be provided. If it is not provided, it will be set to zero.

impl<F: PrimeField> Poseidon<F>

pub fn new_circom(nr_inputs: usize) -> Result<Poseidon<Fr>, PoseidonError>

pub fn with_domain_tag_circom( nr_inputs: usize, domain_tag: Fr ) -> Result<Poseidon<Fr>, PoseidonError>

Trait Implementations

impl<F: PrimeField> PoseidonBytesHasher for Poseidon<F>

fn hash_bytes_le(&mut self, inputs: &[&[u8]]) -> Result<[u8; 32], PoseidonError>

Calculates a Poseidon hash for the given input of little-endian byte slices and returns the result as a byte array.

fn hash_bytes_be(&mut self, inputs: &[&[u8]]) -> Result<[u8; 32], PoseidonError>

Calculates a Poseidon hash for the given input of big-endian byte slices and returns the result as a byte array.

impl<F: PrimeField> PoseidonHasher<F> for Poseidon<F>

fn hash(&mut self, inputs: &[F]) -> Result<F, PoseidonError>

Calculates a Poseidon hash for the given input of prime fields and returns the result as a prime field.