milksad
/
rust-secp256k1-unsafe-fast
14
0
Fork 0
Code Issues Pull Requests Activity

Merge rust-bitcoin/rust-secp256k1#618: Add a verify function to PublicKey 

d60b891126 Add a verify function to PublicKey (Tobin C. Harding)

Pull request description:

  Expose signature verification functionality for schnorr signatures on the `XOnlyPublicKey` type.

  Idea from Kixunil: https://github.com/rust-bitcoin/rust-bitcoin/pull/1744#issuecomment-1534200841

ACKs for top commit:
  apoelstra:
    ACK d60b891126

Tree-SHA512: 2ffa3de528b857c5b0a402815b71b35da913c668bea53b63801705fa6a86eb6d44766aa2395c02f67a4712b451c77caf627af9450183ae70957abf246a63c279
This commit is contained in:
Andrew Poelstra 2023-07-09 16:09:49 +00:00
parent 7c8270a850 d60b891126
commit 408c1244ef
No known key found for this signature in database
GPG Key ID: C588D63CE41B97C1
1 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/key.rs
View File

@ -12,12 +12,10 @@ use serde::ser::SerializeTuple;
use crate::ffi::types::c_uint;
use crate::ffi::{self, CPtr};
#[cfg(all(feature = "global-context", feature = "rand-std"))]
use crate::schnorr;
use crate::Error::{self, InvalidPublicKey, InvalidPublicKeySum, InvalidSecretKey};
use crate::{constants, from_hex, Scalar, Secp256k1, Signing, Verification};
use crate::{constants, from_hex, schnorr, Message, Scalar, Secp256k1, Signing, Verification};
#[cfg(feature = "global-context")]
use crate::{ecdsa, Message, SECP256K1};
use crate::{ecdsa, SECP256K1};
#[cfg(feature = "bitcoin_hashes")]
use crate::{hashes, ThirtyTwoByteHash};
@ -1316,6 +1314,16 @@ impl XOnlyPublicKey {
pub fn public_key(&self, parity: Parity) -> PublicKey {
PublicKey::from_x_only_public_key(*self, parity)
}
/// Checks that `sig` is a valid schnorr signature for `msg` using this public key.
pub fn verify<C: Verification>(
&self,
secp: &Secp256k1<C>,
msg: &Message,
sig: &schnorr::Signature,
) -> Result<(), Error> {
secp.verify_schnorr(sig, msg, self)
}
}
/// Represents the parity passed between FFI function calls.