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Attach a context to our software signers

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This allows the signer to know the signing context precisely without
relying on heuristics on the psbt fields.

Due to the context being static, we still have to look at the PSBT when
producing taproot signatures to determine the set of leaf hashes that
the key can sign for.
This commit is contained in:
Alekos Filini
2022-05-12 17:28:41 +02:00
parent 906598ad92
commit 1312184ed7
3 changed files with 150 additions and 94 deletions
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8
src/wallet/mod.rs
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@@ -197,7 +197,7 @@ where
KeychainKind::External,
get_checksum(&descriptor.to_string())?.as_bytes(),
)?;
let signers = Arc::new(SignersContainer::from(keymap));
let signers = Arc::new(SignersContainer::build(keymap, &descriptor, &secp));
let (change_descriptor, change_signers) = match change_descriptor {
Some(desc) => {
let (change_descriptor, change_keymap) =
@@ -207,7 +207,11 @@ where
get_checksum(&change_descriptor.to_string())?.as_bytes(),
)?;
let change_signers = Arc::new(SignersContainer::from(change_keymap));
let change_signers = Arc::new(SignersContainer::build(
change_keymap,
&change_descriptor,
&secp,
));
// if !parsed.same_structure(descriptor.as_ref()) {
// return Err(Error::DifferentDescriptorStructure);
// }