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#![no_std]
#![cfg_attr(docsrs, feature(doc_cfg))]
#![forbid(unsafe_code)]
#![doc(
html_logo_url = "https://raw.githubusercontent.com/RustCrypto/meta/master/logo.svg",
html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/meta/master/logo.svg"
)]
#![warn(missing_docs, rust_2018_idioms)]
#[cfg(feature = "alloc")]
#[macro_use]
extern crate alloc;
#[cfg(feature = "std")]
extern crate std;
#[cfg(feature = "alloc")]
use alloc::boxed::Box;
#[cfg(feature = "dev")]
#[cfg_attr(docsrs, doc(cfg(feature = "dev")))]
pub mod dev;
#[cfg(feature = "core-api")]
mod core_api;
mod digest;
#[cfg(feature = "alloc")]
mod dyn_digest;
#[cfg(feature = "core-api")]
pub use crate::core_api::{
AlgorithmName, ExtendableOutputCore, FixedOutputCore, UpdateCore, UpdateCoreWrapper,
XofReaderCoreWrapper,
};
pub use crate::digest::{Digest, Output};
#[cfg(feature = "core-api")]
pub use block_buffer;
#[cfg(feature = "alloc")]
pub use dyn_digest::{DynDigest, InvalidBufferLength};
pub use generic_array::{self, typenum::consts, ArrayLength, GenericArray};
pub trait Update {
fn update(&mut self, data: &[u8]);
}
pub trait Reset {
fn reset(&mut self);
}
pub trait FixedOutput {
type OutputSize: ArrayLength<u8>;
fn finalize_into(self, out: &mut GenericArray<u8, Self::OutputSize>)
where
Self: Sized;
fn finalize_into_reset(&mut self, out: &mut GenericArray<u8, Self::OutputSize>);
#[inline]
fn finalize_fixed(self) -> GenericArray<u8, Self::OutputSize>
where
Self: Sized,
{
let mut out = Default::default();
self.finalize_into(&mut out);
out
}
#[inline]
fn finalize_fixed_reset(&mut self) -> GenericArray<u8, Self::OutputSize> {
let mut out = Default::default();
self.finalize_into_reset(&mut out);
out
}
}
pub trait XofReader {
fn read(&mut self, buffer: &mut [u8]);
#[cfg(feature = "alloc")]
#[cfg_attr(docsrs, doc(cfg(feature = "alloc")))]
fn read_boxed(&mut self, n: usize) -> Box<[u8]> {
let mut buf = vec![0u8; n].into_boxed_slice();
self.read(&mut buf);
buf
}
}
pub trait ExtendableOutput {
type Reader: XofReader;
fn finalize_xof(self) -> Self::Reader
where
Self: Sized;
fn finalize_xof_reset(&mut self) -> Self::Reader;
#[cfg(feature = "alloc")]
#[cfg_attr(docsrs, doc(cfg(feature = "alloc")))]
fn finalize_boxed(self, n: usize) -> Box<[u8]>
where
Self: Sized,
{
let mut buf = vec![0u8; n].into_boxed_slice();
self.finalize_xof().read(&mut buf);
buf
}
#[cfg(feature = "alloc")]
#[cfg_attr(docsrs, doc(cfg(feature = "alloc")))]
fn finalize_boxed_reset(&mut self, n: usize) -> Box<[u8]> {
let mut buf = vec![0u8; n].into_boxed_slice();
self.finalize_xof_reset().read(&mut buf);
buf
}
}