binius_hash/groestl/
mod.rs

1// Copyright 2025 Irreducible Inc.
2
3mod arch;
4mod compression;
5mod digest;
6#[cfg(test)]
7mod tests;
8
9/// Internal implementation of subcomponents of the Grøstl hash function.
10///
11/// This abstracts over optimized implementations of subcomponents using different
12/// architecture-specific instructions, while sharing the code for hash function construction.
13pub trait GroestlShortInternal {
14	type State: Clone;
15
16	fn state_from_bytes(block: &[u8; 64]) -> Self::State;
17
18	fn state_to_bytes(state: &Self::State) -> [u8; 64];
19
20	fn xor_state(h: &mut Self::State, m: &Self::State);
21
22	fn p_perm(h: &mut Self::State);
23
24	fn q_perm(h: &mut Self::State);
25
26	fn compress(h: &mut Self::State, m: &[u8; 64]) {
27		let mut p = h.clone();
28		let mut q = Self::state_from_bytes(m);
29		Self::xor_state(&mut p, &q);
30		Self::p_perm(&mut p);
31		Self::q_perm(&mut q);
32		Self::xor_state(h, &p);
33		Self::xor_state(h, &q);
34	}
35}
36
37pub use arch::GroestlShortImpl;
38pub use compression::*;
39pub use digest::Groestl256;
binius_hash/groestl/mod.rs

binius_hash/groestl/
mod.rs
