Struct ring::digest::Context

[+] Show declaration

pub struct Context { /* fields omitted */ }

[−] Expand description

A context for multi-step (Init-Update-Finish) digest calculations.

Examples

use ring::digest;

let one_shot = digest::digest(&digest::SHA384, b"hello, world");

let mut ctx = digest::Context::new(&digest::SHA384);
ctx.update(b"hello");
ctx.update(b", ");
ctx.update(b"world");
let multi_part = ctx.finish();

assert_eq!(&one_shot.as_ref(), &multi_part.as_ref());

Implementations

impl Context[−]

pub fn new(algorithm: &'static Algorithm) -> Self[−]

Constructs a new context.

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

Updates the digest with all the data in data. update may be called zero or more times until finish is called. It must not be called after finish has been called.

pub fn finish(self) -> Digest[−]

Finalizes the digest calculation and returns the digest value. finish consumes the context so it cannot be (mis-)used after finish has been called.

pub fn algorithm(&self) -> &'static Algorithm[−]

The algorithm that this context is using.

Trait Implementations

impl Clone for Context[+]

[+] Show hidden undocumented items

fn clone(&self) -> Context[−]

Returns a copy of the value.

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

Performs copy-assignment from source.