1 // Copyright 2023 Google LLC
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 use std::ffi::*;
16 use std::mem::MaybeUninit;
17
18 extern "C" {
SHA1(d: *const c_uchar, n: usize, md: *mut c_uchar) -> *mut c_uchar19 fn SHA1(d: *const c_uchar, n: usize, md: *mut c_uchar) -> *mut c_uchar;
20 }
21
sha1(data: &[u8]) -> [u8; 20]22 pub fn sha1(data: &[u8]) -> [u8; 20] {
23 unsafe {
24 let mut hash = MaybeUninit::<[u8; 20]>::uninit();
25 SHA1(data.as_ptr(), data.len(), hash.as_mut_ptr() as *mut _);
26 hash.assume_init()
27 }
28 }
29