silent_payments_psbt/
output.rs

1//! Result type from PSBT Silent Payment output extraction.
2//!
3//! [`ExtractedSpOutput`] contains the computed P2TR script, x-only public key,
4//! output index, and scan public key for wallet mapping after the
5//! [`SpPsbtExtractor`](crate::roles::SpPsbtExtractor) computes SP outputs.
6
7use bitcoin::secp256k1::{PublicKey, XOnlyPublicKey};
8use bitcoin::ScriptBuf;
9
10/// A Silent Payment output extracted from a PSBT after ECDH share aggregation.
11///
12/// Contains everything a wallet needs to assemble the final transaction:
13/// - The computed P2TR script for the output
14/// - The x-only public key embedded in the script
15/// - The PSBT output index this corresponds to
16/// - The recipient's scan public key for wallet-side mapping
17#[derive(Debug, Clone, PartialEq, Eq)]
18pub struct ExtractedSpOutput {
19    script_pubkey: ScriptBuf,
20    x_only_pubkey: XOnlyPublicKey,
21    output_index: usize,
22    scan_pubkey: PublicKey,
23}
24
25impl ExtractedSpOutput {
26    /// Create a new extracted output with all required fields.
27    pub fn new(
28        script_pubkey: ScriptBuf,
29        x_only_pubkey: XOnlyPublicKey,
30        output_index: usize,
31        scan_pubkey: PublicKey,
32    ) -> Self {
33        Self {
34            script_pubkey,
35            x_only_pubkey,
36            output_index,
37            scan_pubkey,
38        }
39    }
40
41    /// The computed P2TR script for this output.
42    pub fn script_pubkey(&self) -> &ScriptBuf {
43        &self.script_pubkey
44    }
45
46    /// The x-only public key embedded in the P2TR output.
47    pub fn x_only_pubkey(&self) -> XOnlyPublicKey {
48        self.x_only_pubkey
49    }
50
51    /// The PSBT output index this extracted output corresponds to.
52    pub fn output_index(&self) -> usize {
53        self.output_index
54    }
55
56    /// The recipient's scan public key, for wallet-side recipient mapping.
57    pub fn scan_pubkey(&self) -> &PublicKey {
58        &self.scan_pubkey
59    }
60}
silent_payments_psbt/output.rs

silent_payments_psbt/
output.rs
