ccp_utils/
hash.rs

1/*
2 * Copyright 2024 Fluence DAO
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17use sha3::digest::core_api::CoreWrapper;
18use sha3::digest::Output;
19use sha3::Keccak256Core;
20
21use ccp_shared::types::GlobalNonce;
22use ccp_shared::types::CUID;
23
24/// Computes global nonce specific for a particular CU by
25/// keccak(global_nonce + cu_id)
26pub fn compute_global_nonce_cu(
27    global_nonce: &GlobalNonce,
28    cu_id: &CUID,
29) -> Output<CoreWrapper<Keccak256Core>> {
30    use sha3::Digest;
31
32    let mut hasher = sha3::Keccak256::new();
33    hasher.update(global_nonce.as_ref());
34    hasher.update(cu_id.as_ref());
35
36    hasher.finalize()
37}
ccp_utils/hash.rs

ccp_utils/
hash.rs
