Struct blake2::VarBlake2b

pub struct VarBlake2b { /* private fields */ }

Blake2b instance with a variable output.

Implementations

impl VarBlake2b

pub fn new_keyed(key: &[u8], output_size: usize) -> Self

Creates a new hashing context with a key.

WARNING! If you plan to use it for variable output MAC, then make sure to compare codes in constant time! It can be done for example by using subtle crate.

pub fn with_params(
    key: &[u8],
    salt: &[u8],
    persona: &[u8],
    output_size: usize
) -> Self

Creates a new hashing context with the full set of sequential-mode parameters.

Trait Implementations

impl BlockInput for VarBlake2b

type BlockSize = U128

Block size

impl Clone for VarBlake2b

fn clone(&self) -> VarBlake2b

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for VarBlake2b

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for VarBlake2b

fn default() -> Self

Returns the “default value” for a type.

impl Reset for VarBlake2b

fn reset(&mut self)

Reset hasher instance to its initial state and return current state.

impl Update for VarBlake2b

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

Digest input data.

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

Digest input data in a chained manner.

impl VariableOutputDirty for VarBlake2b

fn new(output_size: usize) -> Result<Self, InvalidOutputSize>

Create new hasher instance with the given output size.

fn output_size(&self) -> usize

Get output size of the hasher instance provided to the new method

fn finalize_variable_dirty(&mut self, f: impl FnOnce(&[u8]))

Retrieve result into provided buffer and leave hasher in a dirty state.

impl Write for VarBlake2b

fn write(&mut self, buf: &[u8]) -> Result<usize>

Write a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

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

Determines if this Writer has an efficient write_vectored implementation.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

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

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

Creates a “by reference” adapter for this instance of Write.