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Merge rust-bitcoin/rust-secp256k1#607: Add serialize function for schnorr::Signature 

8af2cf12da add .serialize() function to schnorr signature (isaac-asdf)

Pull request description:

  convert from Signature to a byte_array

ACKs for top commit:
  Kixunil:
    ACK 8af2cf12da
  tcharding:
    ACK 8af2cf12da
  apoelstra:
    ACK 8af2cf12da

Tree-SHA512: b69d58646cdba4d83a79189f18628590970f471771feef0e11e089d73bd934777e3554a448b88a3643203522fde98084fd7570a5cec400516166583a3433c000
This commit is contained in:
Andrew Poelstra 2023-05-10 14:09:02 +00:00
parent ecdec75f3c 8af2cf12da
commit 5817d3227d
No known key found for this signature in database
GPG Key ID: C588D63CE41B97C1
1 changed files with 17 additions and 0 deletions
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17
src/schnorr.rs
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@ -88,6 +88,10 @@ impl Signature {
} }
} }
/// Returns a signature as a byte array.
#[inline]
pub fn serialize(&self) -> [u8; constants::SCHNORR_SIGNATURE_SIZE] { self.0 }
/// Verifies a schnorr signature for `msg` using `pk` and the global [`SECP256K1`] context. /// Verifies a schnorr signature for `msg` using `pk` and the global [`SECP256K1`] context.
#[inline] #[inline]
#[cfg(feature = "global-context")] #[cfg(feature = "global-context")]
@ -291,6 +295,19 @@ mod tests {
assert!(secp.verify_schnorr(&sig, &msg, &pubkey).is_ok()); assert!(secp.verify_schnorr(&sig, &msg, &pubkey).is_ok());
} }
#[test]
fn test_serialize() {
let sig = Signature::from_str("6470FD1303DDA4FDA717B9837153C24A6EAB377183FC438F939E0ED2B620E9EE5077C4A8B8DCA28963D772A94F5F0DDF598E1C47C137F91933274C7C3EDADCE8").unwrap();
let sig_bytes = sig.serialize();
let bytes = [
100, 112, 253, 19, 3, 221, 164, 253, 167, 23, 185, 131, 113, 83, 194, 74, 110, 171, 55,
113, 131, 252, 67, 143, 147, 158, 14, 210, 182, 32, 233, 238, 80, 119, 196, 168, 184,
220, 162, 137, 99, 215, 114, 169, 79, 95, 13, 223, 89, 142, 28, 71, 193, 55, 249, 25,
51, 39, 76, 124, 62, 218, 220, 232,
];
assert_eq!(sig_bytes, bytes);
}
#[test] #[test]
fn test_pubkey_from_slice() { fn test_pubkey_from_slice() {
assert_eq!(XOnlyPublicKey::from_slice(&[]), Err(InvalidPublicKey)); assert_eq!(XOnlyPublicKey::from_slice(&[]), Err(InvalidPublicKey));