67 lines
2.1 KiB
Rust
67 lines
2.1 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of OpenEthereum.
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// OpenEthereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// OpenEthereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
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extern crate keccak_hash as hash;
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pub type H256 = [u8; 32];
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pub mod keccak_512 {
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use super::hash;
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pub use self::hash::keccak_512_unchecked as unchecked;
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pub fn write(input: &[u8], output: &mut [u8]) {
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hash::keccak_512(input, output);
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}
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pub fn inplace(input: &mut [u8]) {
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// This is safe since `keccak_*` uses an internal buffer and copies the result to the output. This
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// means that we can reuse the input buffer for both input and output.
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unsafe {
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hash::keccak_512_unchecked(
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input.as_mut_ptr(),
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input.len(),
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input.as_ptr(),
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input.len(),
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);
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}
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}
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}
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pub mod keccak_256 {
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use super::hash;
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pub use self::hash::keccak_256_unchecked as unchecked;
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#[allow(dead_code)]
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pub fn write(input: &[u8], output: &mut [u8]) {
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hash::keccak_256(input, output);
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}
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pub fn inplace(input: &mut [u8]) {
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// This is safe since `keccak_*` uses an internal buffer and copies the result to the output. This
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// means that we can reuse the input buffer for both input and output.
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unsafe {
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hash::keccak_256_unchecked(
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input.as_mut_ptr(),
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input.len(),
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input.as_ptr(),
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input.len(),
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);
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}
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}
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}
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