Struct blake2::VarBlake2s

pub struct VarBlake2s { /* fields omitted */ }

Blake2s instance with a variable output.

Methods

impl VarBlake2s

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.

Trait Implementations

impl Debug for VarBlake2s

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

Formats the value using the given formatter.

impl Clone for VarBlake2s

Important traits for VarBlake2s

impl Write for VarBlake2s

fn clone(&self) -> VarBlake2s

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for VarBlake2s

fn default() -> Self

Returns the "default value" for a type.

impl Input for VarBlake2s

fn input<B: AsRef<[u8]>>(&mut self, data: B)

Digest input data.

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

Digest input data in a chained manner.

impl Reset for VarBlake2s

fn reset(&mut self)

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

impl BlockInput for VarBlake2s

type BlockSize = U64

impl VariableOutput for VarBlake2s

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 variable_result<F: FnOnce(&[u8])>(self, f: F)

Retrieve result via closure and consume hasher.

fn vec_result(self) -> Vec<u8>

Retrieve result into vector and consume hasher.

impl Write for VarBlake2s

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

Attempts to write an entire buffer 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" adaptor for this instance of Write.