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#![no_std]
#![doc(
html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg",
html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg"
)]
#![forbid(unsafe_code)]
#![warn(missing_docs, rust_2018_idioms)]
pub use digest::{self, Digest};
use core::fmt;
#[cfg(feature = "oid")]
use digest::const_oid::{AssociatedOid, ObjectIdentifier};
use digest::{
block_buffer::Eager,
core_api::{
AlgorithmName, Block, BlockSizeUser, Buffer, BufferKindUser, CoreWrapper, FixedOutputCore,
OutputSizeUser, Reset, UpdateCore,
},
typenum::{Unsigned, U16, U20, U32, U40, U64},
HashMarker, Output,
};
mod c128;
mod c160;
mod c256;
mod c320;
macro_rules! impl_ripemd {
(
$name:ident, $wrapped_name:ident, $mod:ident,
$alg_width:expr, $doc_name:expr, $output_size:ty $(,)?
) => {
#[doc = "Core block-level"]
#[doc = $doc_name]
#[doc = " hasher state."]
#[derive(Clone)]
pub struct $name {
h: [u32; $mod::DIGEST_BUF_LEN],
block_len: u64,
}
impl HashMarker for $name {}
impl BlockSizeUser for $name {
type BlockSize = U64;
}
impl BufferKindUser for $name {
type BufferKind = Eager;
}
impl OutputSizeUser for $name {
type OutputSize = $output_size;
}
impl UpdateCore for $name {
#[inline]
fn update_blocks(&mut self, blocks: &[Block<Self>]) {
self.block_len += blocks.len() as u64;
for block in blocks {
$mod::compress(&mut self.h, block.as_ref());
}
}
}
impl FixedOutputCore for $name {
#[inline]
fn finalize_fixed_core(&mut self, buffer: &mut Buffer<Self>, out: &mut Output<Self>) {
let bs = Self::BlockSize::U64;
let bit_len = 8 * (buffer.get_pos() as u64 + bs * self.block_len);
let mut h = self.h;
buffer.len64_padding_le(bit_len, |block| $mod::compress(&mut h, block.as_ref()));
for (chunk, v) in out.chunks_exact_mut(4).zip(h.iter()) {
chunk.copy_from_slice(&v.to_le_bytes());
}
}
}
impl Default for $name {
#[inline]
fn default() -> Self {
Self {
h: $mod::H0,
block_len: 0,
}
}
}
impl Reset for $name {
#[inline]
fn reset(&mut self) {
*self = Default::default();
}
}
impl AlgorithmName for $name {
#[inline]
fn write_alg_name(f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str(concat!("Ripemd", $alg_width))
}
}
impl fmt::Debug for $name {
#[inline]
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str(concat!("Ripemd", $alg_width, "Core { ... }"))
}
}
#[doc = $doc_name]
#[doc = " hasher."]
pub type $wrapped_name = CoreWrapper<$name>;
};
}
impl_ripemd!(Ripemd128Core, Ripemd128, c128, "128", "RIPEMD-128", U16);
impl_ripemd!(Ripemd160Core, Ripemd160, c160, "160", "RIPEMD-160", U20);
impl_ripemd!(Ripemd256Core, Ripemd256, c256, "256", "RIPEMD-256", U32);
impl_ripemd!(Ripemd320Core, Ripemd320, c320, "320", "RIPEMD-320", U40);
#[cfg(feature = "oid")]
#[cfg_attr(docsrs, doc(cfg(feature = "oid")))]
impl AssociatedOid for Ripemd128Core {
const OID: ObjectIdentifier = ObjectIdentifier::new_unwrap("1.3.36.3.2.2");
}
#[cfg(feature = "oid")]
#[cfg_attr(docsrs, doc(cfg(feature = "oid")))]
impl AssociatedOid for Ripemd160Core {
const OID: ObjectIdentifier = ObjectIdentifier::new_unwrap("1.3.36.3.2.1");
}
#[cfg(feature = "oid")]
#[cfg_attr(docsrs, doc(cfg(feature = "oid")))]
impl AssociatedOid for Ripemd256Core {
const OID: ObjectIdentifier = ObjectIdentifier::new_unwrap("1.3.36.3.2.3");
}