Struct Sha256 

pub struct Sha256 { /* private fields */ }

SHA-256 hasher.

Buffers input into 64-byte blocks and drives the hardware sha2 compression (runtime-detected on AArch64) or the sha2 crate’s compression function, which selects hardware SHA-256 instructions at runtime where available. The state and any buffered input are wiped when the hasher is dropped.

Implementations

impl Sha256

pub fn new() -> Self

Returns a new SHA-256 hasher instance.

pub fn compute_into_bytes<Output: MutByteArray<CRYPTO_HASH_SHA256_BYTES>, Input: Bytes + ?Sized>( output: &mut Output, input: &Input, )

One-time interface to compute SHA-256 digest for input, copying result into output.

pub fn compute<Output: NewByteArray<CRYPTO_HASH_SHA256_BYTES>, Input: Bytes + ?Sized>( input: &Input, ) -> Output

One-time interface to compute SHA-256 digest for input.

pub fn compute_to_vec<Input: Bytes + ?Sized>(input: &Input) -> Vec<u8>

Available on crate feature alloc only.

Wrapper around Sha256::compute, returning a Vec. Provided for convenience.

pub fn update<Input: Bytes + ?Sized>(&mut self, input: &Input)

Updates SHA-256 hash state with input.

pub fn finalize<Output: NewByteArray<CRYPTO_HASH_SHA256_BYTES>>(self) -> Output

Consumes hasher and return final computed hash.

pub fn finalize_into_bytes<Output: MutByteArray<CRYPTO_HASH_SHA256_BYTES>>( self, output: &mut Output, )

Consumes hasher and writes final computed hash into output.

pub fn finalize_to_vec(self) -> Vec<u8>

Available on crate feature alloc only.

Consumes hasher and returns final computed hash as a Vec.

Trait Implementations

impl Clone for Sha256

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for Sha256

fn default() -> Self

Returns the “default value” for a type.

impl Drop for Sha256

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.