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Add push_p2wpkh function on Witness 

In order to create the witness to spend p2wpkh output one must push the
signature and the pubkey, we should have a function for this.
This commit is contained in:
Tobin C. Harding 2023-09-20 15:03:25 +10:00
parent 8cd409d561
commit 5901d35095
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GPG Key ID: 40BF9E4C269D6607
1 changed files with 13 additions and 0 deletions
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13
bitcoin/src/blockdata/witness.rs
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@ -236,6 +236,19 @@ impl Witness {
/// Creates a new empty [`Witness`]. /// Creates a new empty [`Witness`].
pub fn new() -> Self { Witness::default() } pub fn new() -> Self { Witness::default() }
/// Creates a witness required to spend a P2WPKH output.
///
/// The witness will be made up of the DER encoded signature + sighash_type followed by the
/// serialized public key. Also useful for spending a P2SH-P2WPKH output.
///
/// It is expected that `pubkey` is related to the secret key used to create `signature`.
pub fn p2wpkh(signature: &ecdsa::Signature, pubkey: &secp256k1::PublicKey) -> Witness {
let mut witness = Witness::new();
witness.push_slice(&signature.serialize());
witness.push_slice(&pubkey.serialize());
witness
}
/// Creates a [`Witness`] object from a slice of bytes slices where each slice is a witness item. /// Creates a [`Witness`] object from a slice of bytes slices where each slice is a witness item.
pub fn from_slice<T: AsRef<[u8]>>(slice: &[T]) -> Self { pub fn from_slice<T: AsRef<[u8]>>(slice: &[T]) -> Self {
let witness_elements = slice.len(); let witness_elements = slice.len();