Struct BHPHasher

pub struct BHPHasher<E: Environment, const NUM_WINDOWS: u8, const WINDOW_SIZE: u8> { /* private fields */ }

BHP is a collision-resistant hash function that takes a variable-length input. The BHP hasher is used to process one internal iteration of the BHP hash function.

Implementations

impl<E: Environment, const NUM_WINDOWS: u8, const WINDOW_SIZE: u8> BHPHasher<E, NUM_WINDOWS, WINDOW_SIZE>

pub fn setup(domain: &str) -> Result<Self>

Initializes a new instance of BHP with the given domain.

pub fn bases(&self) -> &Arc<Vec<Vec<Group<E>>>>

Returns the bases.

pub fn random_base(&self) -> &Arc<Vec<Group<E>>>

Returns the random base window.

Trait Implementations

impl<E: Clone + Environment, const NUM_WINDOWS: u8, const WINDOW_SIZE: u8> Clone for BHPHasher<E, NUM_WINDOWS, WINDOW_SIZE>

fn clone(&self) -> BHPHasher<E, NUM_WINDOWS, WINDOW_SIZE>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<E: Debug + Environment, const NUM_WINDOWS: u8, const WINDOW_SIZE: u8> Debug for BHPHasher<E, NUM_WINDOWS, WINDOW_SIZE>

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

Formats the value using the given formatter.

impl<E: Environment, const NUM_WINDOWS: u8, const WINDOW_SIZE: u8> HashUncompressed for BHPHasher<E, NUM_WINDOWS, WINDOW_SIZE>

fn hash_uncompressed(&self, input: &[Self::Input]) -> Result<Self::Output>

Returns the BHP hash of the given input as an affine group element.

This uncompressed variant of the BHP hash function is provided to support the BHP commitment scheme, as it is typically not used by applications.

type Input = bool

type Output = Group<E>

impl<E: PartialEq + Environment, const NUM_WINDOWS: u8, const WINDOW_SIZE: u8> PartialEq for BHPHasher<E, NUM_WINDOWS, WINDOW_SIZE>

fn eq(&self, other: &BHPHasher<E, NUM_WINDOWS, WINDOW_SIZE>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<E: Environment, const NUM_WINDOWS: u8, const WINDOW_SIZE: u8> StructuralPartialEq for BHPHasher<E, NUM_WINDOWS, WINDOW_SIZE>