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rust-bitcoin-unsafe-fast
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Export sha512::HashEngine fields/function within the crate 

The export is for the sha512/256 implementation as it can use the
existing HashEngine in sha512 and avoid code duplication.
This commit is contained in:
Calvin Kim 2022-11-28 21:53:29 +09:00
parent e16b9bdb20
commit 15b5af1117
1 changed files with 7 additions and 7 deletions
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14
hashes/src/sha512.rs
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@ -29,14 +29,14 @@ use crate::{Error, HashEngine as _, hex};
crate::internal_macros::hash_trait_impls!(512, false); crate::internal_macros::hash_trait_impls!(512, false);
const BLOCK_SIZE: usize = 128; pub(crate) const BLOCK_SIZE: usize = 128;
/// Engine to compute SHA512 hash function. /// Engine to compute SHA512 hash function.
#[derive(Clone)] #[derive(Clone)]
pub struct HashEngine { pub struct HashEngine {
h: [u64; 8], pub(crate) h: [u64; 8],
length: usize, pub(crate) length: usize,
buffer: [u8; BLOCK_SIZE], pub(crate) buffer: [u8; BLOCK_SIZE],
} }
impl Default for HashEngine { impl Default for HashEngine {
@ -141,7 +141,7 @@ impl hash::Hash for Hash {
} }
#[cfg(not(fuzzing))] #[cfg(not(fuzzing))]
fn from_engine(mut e: HashEngine) -> Hash { pub(crate) fn from_engine(mut e: HashEngine) -> Hash {
// pad buffer with a single 1-bit then all 0s, until there are exactly 16 bytes remaining // pad buffer with a single 1-bit then all 0s, until there are exactly 16 bytes remaining
let data_len = e.length as u64; let data_len = e.length as u64;
@ -162,7 +162,7 @@ fn from_engine(mut e: HashEngine) -> Hash {
} }
#[cfg(fuzzing)] #[cfg(fuzzing)]
fn from_engine(e: HashEngine) -> Hash { pub(crate) fn from_engine(e: HashEngine) -> Hash {
let mut hash = e.midstate(); let mut hash = e.midstate();
hash[0] ^= 0xff; // Make this distinct from SHA-256 hash[0] ^= 0xff; // Make this distinct from SHA-256
Hash(hash) Hash(hash)
@ -192,7 +192,7 @@ macro_rules! round(
impl HashEngine { impl HashEngine {
// Algorithm copied from libsecp256k1 // Algorithm copied from libsecp256k1
fn process_block(&mut self) { pub(crate) fn process_block(&mut self) {
debug_assert_eq!(self.buffer.len(), BLOCK_SIZE); debug_assert_eq!(self.buffer.len(), BLOCK_SIZE);
let mut w = [0u64; 16]; let mut w = [0u64; 16];