Struct blake2::VarBlake2b

[+] Show declaration

pub struct VarBlake2b { /* fields omitted */ }

[−] Expand description

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[+]

[+] Show hidden undocumented items

fn clone(&self) -> VarBlake2b[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Debug for VarBlake2b[+]

[+] Show hidden undocumented items

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

Formats the value using the given formatter.

impl Default for VarBlake2b[+]

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fn default() -> Self[−]

Returns the “default value” for a type.

impl Reset for VarBlake2b[+]

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fn reset(&mut self)[−]

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

impl Update for VarBlake2b[+]

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

Digest input data.

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

Digest input data in a chained manner.

impl VariableOutputDirty for VarBlake2b[+]

[+] Show hidden undocumented items

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[+]

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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.

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

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

pub 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.

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

Attempts to write an entire buffer into this writer.

pub 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.

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

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

pub fn by_ref(&mut self) -> &mut Self[−]

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