Struct poly1305::Poly1305

pub struct Poly1305 { /* fields omitted */ }

The Poly1305 universal hash function.

Note that Poly1305 is not a traditional MAC and is single-use only (a.k.a. "one-time authenticator").

For this reason it doesn't impl the crypto_mac::Mac trait.

Methods

impl Poly1305

pub fn new(key: &[u8; 32]) -> Poly1305

Initialize Poly1305 with the given key

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

Input data into the Poly1305 universal hash function

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

Input data into Poly1305, first padding it to Poly1305's block size ala the pad16() function described in RFC 8439 section 2.8.1: https://tools.ietf.org/html/rfc8439#section-2.8.1

This is primarily useful for implementing Salsa20 family authenticated encryption constructions.

pub fn chain(self, data: &[u8]) -> Self

Process input messages in a chained manner

pub fn result(self) -> Tag

Get the hashed output

Trait Implementations

impl Clone for Poly1305

fn clone(&self) -> Poly1305

Returns a copy of the value.

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

Performs copy-assignment from source.