Struct blake2::VarBlake2b

pub struct VarBlake2b { /* fields omitted */ }

Blake2b instance with a variable output.

Methods

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.

Trait Implementations

impl Debug for VarBlake2b

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

Formats the value using the given formatter.

impl Clone for VarBlake2b

Important traits for VarBlake2b

impl Write 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 Default for VarBlake2b

fn default() -> Self

Returns the "default value" for a type.

impl Input for VarBlake2b

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 VarBlake2b

fn reset(&mut self)

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

impl BlockInput for VarBlake2b

type BlockSize = U128

impl VariableOutput 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 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 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 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.