Struct bitcoin_hashes::sha256::HashEngine

pub struct HashEngine { /* fields omitted */ }

Engine to compute SHA256 hash function

Methods

impl HashEngine

Important traits for HashEngine

impl Write for HashEngine

pub fn from_midstate(midstate: Midstate, length: usize) -> HashEngine

Create a new [HashEngine] from a midstate.

Be aware that this method panics when [length] is not a multiple of the block size.

Trait Implementations

impl HashEngine for HashEngine

type MidState = Midstate

Byte array representing the internal state of the hash engine

fn midstate(&self) -> Midstate

Outputs the midstate of the hash engine. This function should not be used directly unless you really know what you're doing.

const BLOCK_SIZE: usize

Length of the hash's internal block size, in bytes

fn n_bytes_hashed(&self) -> usize

Return the number of bytes already n_bytes_hashed(inputted)

fn input(&mut self, inp: &[u8])

Add data to the hash engine

impl Default for HashEngine

fn default() -> Self

Returns the "default value" for a type.

impl Clone for HashEngine

Important traits for HashEngine

impl Write for HashEngine

fn clone(&self) -> HashEngine

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Write for HashEngine

fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write(&mut self, buf: &[u8]) -> Result<usize>

Write a buffer into this writer, returning how many bytes were written.

fn write_vectored(&mut self, bufs: &[IoSlice]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Write.