Struct Blake2b 

pub struct Blake2b { /* private fields */ }

A BLAKE2b hasher with a caller-chosen output length.

Implementations

impl Blake2b

pub fn new(output_len: usize) -> Result<Self>

Create a hasher producing output_len bytes, between 1 and 64.

pub fn with_key(output_len: usize, key: &[u8]) -> Result<Self>

Create a keyed hasher, the BLAKE2b equivalent of an HMAC.

The key is absorbed as a zero-padded first block, exactly as RFC 7693 specifies, so a keyed hash of an empty message is still one compression.

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

Absorb more input.

BLAKE2b marks the last block specially, so a full buffer is only compressed once more input is known to follow.

pub fn finalize_into(self, out: &mut [u8]) -> Result<()>

Finish and write the digest into out, which must be output_len long.

pub fn hash(data: &[u8], out: &mut [u8]) -> Result<()>

One-shot hash.

pub fn keyed_hash(key: &[u8], data: &[u8], out: &mut [u8]) -> Result<()>

One-shot keyed hash.

Trait Implementations

impl Clone for Blake2b

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Drop for Blake2b

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.