[−][src]Trait digest::Digest

pub trait Digest {
    type OutputSize: ArrayLength<u8>;
    pub fn new() -> Self;

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

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

    pub fn finalize(self) -> Output<Self>;

    pub fn finalize_reset(&mut self) -> Output<Self>;

    pub fn finalize_into(self, out: &mut GenericArray<u8, Self::OutputSize>);

    pub fn finalize_into_reset(
        &mut self, 
        out: &mut GenericArray<u8, Self::OutputSize>
    );

    pub fn reset(&mut self);

    pub fn output_size() -> usize;

    pub fn digest(data: &[u8]) -> Output<Self>;
}

The Digest trait specifies an interface common for digest functions.

It's a convenience wrapper around Update, FixedOutput, Reset, Clone, and Default traits. It also provides additional convenience methods.

Associated Types

type OutputSize: ArrayLength<u8>[src]

Output size for Digest

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Required methods

pub fn new() -> Self[src]

Create new hasher instance

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

Digest data, updating the internal state.

This method can be called repeatedly for use with streaming messages.

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

Digest input data in a chained manner.

pub fn finalize(self) -> Output<Self>[src]

Retrieve result and consume hasher instance.

pub fn finalize_reset(&mut self) -> Output<Self>[src]

Retrieve result and reset hasher instance.

This method sometimes can be more efficient compared to hasher re-creation.

pub fn finalize_into(self, out: &mut GenericArray<u8, Self::OutputSize>)[src]

Write result into provided array and consume the hasher instance.

pub fn finalize_into_reset(
    &mut self,
    out: &mut GenericArray<u8, Self::OutputSize>
)[src]

Write result into provided array and reset the hasher instance.

pub fn reset(&mut self)[src]

Reset hasher instance to its initial state.

pub fn output_size() -> usize[src]

Get output size of the hasher

pub fn digest(data: &[u8]) -> Output<Self>[src]

Convenience function to compute hash of the data. It will handle hasher creation, data feeding and finalization.

Example:

ⓘ
println!("{:x}", sha2::Sha256::digest(b"Hello world"));
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Implementors

impl<D: Update + FixedOutput + Reset + Clone + Default> Digest for D[src]

type OutputSize = Self::OutputSize

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