Struct ShaDigest 

pub struct ShaDigest<'d, A, S: BorrowMut<Sha<'d>>> { /* private fields */ }

An active digest.

This implementation might fail after u32::MAX/8 bytes. See finish() length/self.cursor usage to increase the limit.

Implementations

impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> ShaDigest<'d, A, S>

pub fn new(sha: S) -> Self

Creates a new digest.

pub fn restore(sha: S, ctx: &mut Context<A>) -> Self

Restores a previously saved digest.

pub fn is_busy(&self) -> bool

Returns whether the hardware is processing the next message.

pub fn update<'a>(&mut self, incoming: &'a [u8]) -> Result<&'a [u8], Infallible>

Updates the SHA digest with the provided data buffer.

pub fn finish(&mut self, output: &mut [u8]) -> Result<(), Infallible>

Finishes the calculation (if not already finished) and copies the result to output.

After finish() is called, update()s contribute to a new hash which can be calculated again with finish()

Typically, output is expected to be the size of ShaAlgorithm::DIGEST_LENGTH, but smaller inputs can be given to get a “short hash”

pub fn save(&mut self, context: &mut Context<A>) -> Result<(), Infallible>

Saves the current state of the digest for later continuation.

pub fn cancel(self) -> S

Discards the current digest and returns the peripheral.

Trait Implementations

impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> FixedOutput for ShaDigest<'d, A, S>

Available on crate feature unstable only.

fn finalize_into(self, out: &mut Output<Self>)

Consume value and write result into provided array.

fn finalize_fixed(self) -> GenericArray<u8, Self::OutputSize>

Retrieve result and consume the hasher instance.

impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> FixedOutput for ShaDigest<'d, A, S>

Available on crate feature unstable only.

fn finalize_into(self, out: &mut Output<Self>)

Consume value and write result into provided array.

fn finalize_fixed(self) -> Array<u8, Self::OutputSize>

Retrieve result and consume the hasher instance.

impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> HashMarker for ShaDigest<'d, A, S>

Available on crate feature unstable only.

digest has a blanket trait implementation for Digest for any element that implements FixedOutput + Default + Update + HashMarker.

impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> HashMarker for ShaDigest<'d, A, S>

Available on crate feature unstable only.

impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> OutputSizeUser for ShaDigest<'d, A, S>

Available on crate feature unstable only.

type OutputSize = <A as ShaAlgorithm>::Digest010OutputSize

Size of the output in bytes.

fn output_size() -> usize

Return output size in bytes.

impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> OutputSizeUser for ShaDigest<'d, A, S>

Available on crate feature unstable only.

type OutputSize = <A as ShaAlgorithm>::Digest011OutputSize

Size of the output in bytes.

fn output_size() -> usize

Return output size in bytes.

impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> Update for ShaDigest<'d, A, S>

Available on crate feature unstable only.

fn update(&mut self, remaining: &[u8])

Update state using the provided data.

fn chain(self, data: impl AsRef<[u8]>) -> Self

where Self: Sized,

Digest input data in a chained manner.

impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> Update for ShaDigest<'d, A, S>

Available on crate feature unstable only.

fn update(&mut self, remaining: &[u8])

Update state using the provided data.

fn chain(self, data: impl AsRef<[u8]>) -> Self

where Self: Sized,

Digest input data in a chained manner.