1  // Copyright (c) 2019-2025 Alpha-Delta Network Inc.
 2  // This file is part of the alphavm library.
 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  use super::*;
17  
18  impl<N: Network, Private: Visibility> Record<N, Private> {
19      /// A helper method to derive the tag from the `sk_tag` and commitment.
20      pub fn tag(sk_tag: Field<N>, commitment: Field<N>) -> Result<Field<N>> {
21          // Compute the tag as `Hash(sk_tag, commitment)`.
22          N::hash_psd2(&[sk_tag, commitment])
23      }
24  }