Struct crypto::ghash::Ghash

pub struct Ghash { /* fields omitted */ }

A structure representing the state of a GHASH computation

Methods

impl Ghash

pub fn new(h: &[u8]) -> Ghash

Creates a new GHASH state, with h as the key

pub fn input_a(self, a: &[u8]) -> Ghash

Feeds data for GHASH's A input

pub fn input_c(self, c: &[u8]) -> GhashWithC

Feeds data for GHASH's C input

pub fn result(self) -> [u8; 16]

Retrieve the digest result

Trait Implementations

impl Copy for Ghash

impl Clone for Ghash

fn clone(&self) -> Ghash

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Mac for Ghash

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

Process input data.

fn reset(&mut self)

Reset the Mac state to begin processing another input stream.

fn result(&mut self) -> MacResult

Obtain the result of a Mac computation as a MacResult.

fn raw_result(&mut self, output: &mut [u8])

Obtain the result of a Mac computation as [u8]. This method should be used very carefully since incorrect use of the Mac code could result in permitting a timing attack which defeats the security provided by a Mac function.

fn output_bytes(&self) -> usize

Get the size of the Mac code, in bytes.