Trait Digest

pub trait Digest: OutputSizeUser {
    // Required methods
    fn new() -> Self;
    fn new_with_prefix(data: impl AsRef<[u8]>) -> Self;
    fn update(&mut self, data: impl AsRef<[u8]>);
    fn chain_update(self, data: impl AsRef<[u8]>) -> Self;
    fn finalize(self) -> Array<u8, Self::OutputSize>;
    fn finalize_into(self, out: &mut Array<u8, Self::OutputSize>);
    fn finalize_reset(&mut self) -> Array<u8, Self::OutputSize>
       where Self: FixedOutputReset;
    fn finalize_into_reset(&mut self, out: &mut Array<u8, Self::OutputSize>)
       where Self: FixedOutputReset;
    fn reset(&mut self)
       where Self: Reset;
    fn output_size() -> usize;
    fn digest(data: impl AsRef<[u8]>) -> Array<u8, Self::OutputSize>;
}

Available on crate feature alloc only.

Convenience wrapper trait covering functionality of cryptographic hash functions with fixed output size.

This trait wraps Update, FixedOutput, Default, and HashMarker traits and provides additional convenience methods.

Required Methods

fn new() -> Self

Create new hasher instance.

fn new_with_prefix(data: impl AsRef<[u8]>) -> Self

Create new hasher instance which has processed the provided data.

fn update(&mut self, data: impl AsRef<[u8]>)

Process data, updating the internal state.

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

Process input data in a chained manner.

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

Retrieve result and consume hasher instance.

fn finalize_into(self, out: &mut Array<u8, Self::OutputSize>)

Write result into provided array and consume the hasher instance.

fn finalize_reset(&mut self) -> Array<u8, Self::OutputSize>

where Self: FixedOutputReset,

Retrieve result and reset hasher instance.

fn finalize_into_reset(&mut self, out: &mut Array<u8, Self::OutputSize>)

where Self: FixedOutputReset,

Write result into provided array and reset the hasher instance.

fn reset(&mut self)

where Self: Reset,

Reset hasher instance to its initial state.

fn output_size() -> usize

Get output size of the hasher

fn digest(data: impl AsRef<[u8]>) -> Array<u8, Self::OutputSize>

Compute hash of data.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<D> Digest for D

where D: FixedOutput + Default + Update + HashMarker,