Trait Update

pub trait Update: Default {
    type Digest: Digest;
    type Finalize: Finalize<Digest = Self::Digest, Update = Self>;

    // Required methods
    fn update(&mut self, data: impl AsRef<[u8]>);
    fn finalize(&self) -> Self::Finalize;
    fn reset(&mut self);

    // Provided method
    fn digest(&self) -> Self::Digest { ... }
}

A trait for hash objects in an in-progress state.

This trait defines the common interface for hash objects that are in the process of being updated with new data. Implementations of this trait typically maintain an internal state that evolves as new data is added.

Required Associated Types

type Digest: Digest

The type representing the digest produced by finalizing the hash.

type Finalize: Finalize<Digest = Self::Digest, Update = Self>

The type representing the finalized state, which can be converted into a digest.

Required Methods

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

Updates the hash state with an input data.

fn finalize(&self) -> Self::Finalize

Finalizes the hash state.

fn reset(&mut self)

Resets the hash state to its initial state.

Provided Methods

fn digest(&self) -> Self::Digest

Produces the hash digest using internal finalization.

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