Struct MessageHash

pub struct MessageHash(pub(crate) [u8; 32]);

A message hash for ECDSA operations. Can be created either via MessageHash::sha256 or MessageHash::keccak256. If you need a different hash function you can hash yourself and construct via MessageHash::from_hash.

Tuple Fields

0: [u8; 32]

Implementations

impl MessageHash

pub fn from_hash(hash: [u8; 32]) -> Self

Creates a new MessageHash from a 32-byte hash.

pub fn as_bytes(&self) -> &[u8; 32]

Returns a reference to the underlying hash byte array.

pub fn into_bytes(self) -> [u8; 32]

Consumes the MessageHash and returns the underlying hash byte array.

pub fn sha256(msg: &[u8]) -> Self

Uses SHA-256 to hash the message and returns a MessageHash.

pub fn keccak256(msg: &[u8]) -> Self

Uses Keccak-256 to hash the message and returns a MessageHash.

fn hash( msg: &[u8], f: unsafe extern "C" fn(*const u8, usize, *mut [u8; 32]), ) -> Self

Trait Implementations

impl Clone for MessageHash

fn clone(&self) -> MessageHash

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MessageHash

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

Formats the value using the given formatter.

impl PartialEq for MessageHash

fn eq(&self, other: &MessageHash) -> 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 ToFFI for MessageHash

type Str<'a> = Buffer<32>

The string type returned by the FFI conversion.

fn ffi<'a>(&'a self) -> Self::Str<'a>

Converts this value to its FFI string representation.

impl Copy for MessageHash

impl Eq for MessageHash

impl StructuralPartialEq for MessageHash