Trait digest::Digest [−][src]
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>
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Output size for Digest
Required methods
fn new() -> Self
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Create new hasher instance
fn update(&mut self, data: impl AsRef<[u8]>)
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Digest data, updating the internal state.
This method can be called repeatedly for use with streaming messages.
fn chain(self, data: impl AsRef<[u8]>) -> Self where
Self: Sized,
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Self: Sized,
Digest input data in a chained manner.
fn finalize(self) -> Output<Self>
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Retrieve result and consume hasher instance.
fn finalize_reset(&mut self) -> Output<Self>
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Retrieve result and reset hasher instance.
This method sometimes can be more efficient compared to hasher re-creation.
fn reset(&mut self)
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Reset hasher instance to its initial state.
fn output_size() -> usize
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Get output size of the hasher
fn digest(data: &[u8]) -> Output<Self>
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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"));
Implementors
impl<D: Update + FixedOutput + Reset + Clone + Default> Digest for D
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type OutputSize = Self::OutputSize
fn new() -> Self
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fn update(&mut self, data: impl AsRef<[u8]>)
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fn chain(self, data: impl AsRef<[u8]>) -> Self where
Self: Sized,
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Self: Sized,