Struct sp_domains::merkle_tree::Blake2b256Algorithm

pub struct Blake2b256Algorithm;

Trait Implementations

impl Clone for Blake2b256Algorithm

fn clone(&self) -> Blake2b256Algorithm

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for Blake2b256Algorithm

fn default() -> Self

Returns the “default value” for a type.

impl Hasher for Blake2b256Algorithm

type Hash = [u8; 32]

This type is used as a hash type in the library. It is recommended to use fixed size u8 array as a hash type. For example, for sha256 the type would be [u8; 32], representing 32 bytes, which is the size of the sha256 digest. Also, fixed sized arrays of u8 by default satisfy all trait bounds required by this type.

fn hash(data: &[u8]) -> Blake3Hash

This associated function takes a slice of bytes and returns a hash of it. Used by concat_and_hash function to build a tree from concatenated hashes

fn concat_and_hash(left: &Self::Hash, right: Option<&Self::Hash>) -> Self::Hash

Used by MerkleTree and PartialTree when calculating the root. The provided default implementation propagates the left node if it doesn’t have a sibling. The left node should always be present. The right node is optional.

fn hash_size() -> usize

Returns the byte size of Self::Hash. Default implementation returns mem::size_of::<Self::Hash>(). Usually doesn’t need to be overridden. Used internally by MerkleProof to parse hashes from a serialized proof.