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<E: Environment, const NUM_WINDOWS: u8, const WINDOW_SIZE: u8> Hash for BHP<E, NUM_WINDOWS, WINDOW_SIZE> {
19      type Input = bool;
20      type Output = Field<E>;
21  
22      /// Returns the BHP hash of the given input as a field element.
23      fn hash(&self, input: &[Self::Input]) -> Result<Self::Output> {
24          Ok(self.hash_uncompressed(input)?.to_x_coordinate())
25      }
26  }