dbc/tapret/
txout.rs

1// Deterministic bitcoin commitments library.
2//
3// SPDX-License-Identifier: Apache-2.0
4//
5// Written in 2019-2024 by
6//     Dr Maxim Orlovsky <orlovsky@lnp-bp.org>
7//
8// Copyright (C) 2019-2024 LNP/BP Standards Association. All rights reserved.
9//
10// Licensed under the Apache License, Version 2.0 (the "License");
11// you may not use this file except in compliance with the License.
12// You may obtain a copy of the License at
13//
14//     http://www.apache.org/licenses/LICENSE-2.0
15//
16// Unless required by applicable law or agreed to in writing, software
17// distributed under the License is distributed on an "AS IS" BASIS,
18// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19// See the License for the specific language governing permissions and
20// limitations under the License.
21
22use bc::{ScriptPubkey, TxOut};
23use commit_verify::{mpc, ConvolveCommit, ConvolveCommitProof};
24
25use super::{TapretFirst, TapretKeyError, TapretProof};
26
27impl ConvolveCommitProof<mpc::Commitment, TxOut, TapretFirst> for TapretProof {
28    type Suppl = Self;
29
30    fn restore_original(&self, commitment: &TxOut) -> TxOut {
31        TxOut {
32            value: commitment.value,
33            script_pubkey: self.original_pubkey_script(),
34        }
35    }
36
37    fn extract_supplement(&self) -> &Self::Suppl { self }
38}
39
40impl ConvolveCommit<mpc::Commitment, TapretProof, TapretFirst> for TxOut {
41    type Commitment = TxOut;
42    type CommitError = TapretKeyError;
43
44    fn convolve_commit(
45        &self,
46        supplement: &TapretProof,
47        msg: &mpc::Commitment,
48    ) -> Result<(TxOut, TapretProof), Self::CommitError> {
49        let (output_key, _) =
50            supplement.internal_pk.convolve_commit(&supplement.path_proof, msg)?;
51
52        let script_pubkey = ScriptPubkey::p2tr_tweaked(output_key);
53
54        let commitment = TxOut {
55            value: self.value,
56            script_pubkey,
57        };
58
59        Ok((commitment, supplement.clone()))
60    }
61}
dbc/tapret/txout.rs

dbc/tapret/
txout.rs
