Add slice 'serialize' method for TweakedPublicKey

dr-orlovsky · dr-orlovsky · commit d0a87bea7233 · 2021-12-12T16:24:31.000+02:00
diff --git a/src/util/schnorr.rs b/src/util/schnorr.rs
@@ -18,7 +18,7 @@
 //!
 
 pub use secp256k1::schnorrsig::{PublicKey, KeyPair};
-use secp256k1::{Secp256k1, Verification};
+use secp256k1::{Secp256k1, Verification, constants};
 use hashes::Hash;
 use util::taproot::{TapBranchHash, TapTweakHash};
 use core::fmt;
@@ -79,7 +79,6 @@ impl TapTweak for UntweakedPublicKey {
     }
 }
 
-
 impl TweakedPublicKey {
     /// Creates a new [`TweakedPublicKey`] from a [`PublicKey`]. No tweak is applied, consider
     /// calling `tap_tweak` on an [`UntweakedPublicKey`] instead of using this constructor.
@@ -97,4 +96,11 @@ impl TweakedPublicKey {
         &self.0
     }
 
+    /// Serialize the key as a byte-encoded pair of values. In compressed form
+    /// the y-coordinate is represented by only a single bit, as x determines
+    /// it up to one bit.
+    #[inline]
+    pub fn serialize(&self) -> [u8; constants::SCHNORRSIG_PUBLIC_KEY_SIZE] {
+        self.0.serialize()
+    }
 }

Original file line number	Diff line number	Diff line change
`@@ -18,7 +18,7 @@`
`18`	`18`	`//!`
`19`	`19`
`20`	`20`	`pub use secp256k1::schnorrsig::{PublicKey, KeyPair};`
`21`		`-use secp256k1::{Secp256k1, Verification};`
	`21`	`+use secp256k1::{Secp256k1, Verification, constants};`
`22`	`22`	`use hashes::Hash;`
`23`	`23`	`use util::taproot::{TapBranchHash, TapTweakHash};`
`24`	`24`	`use core::fmt;`
`@@ -79,7 +79,6 @@ impl TapTweak for UntweakedPublicKey {`
`79`	`79`	`}`
`80`	`80`	`}`
`81`	`81`
`82`		`-`
`83`	`82`	`impl TweakedPublicKey {`
`84`	`83`	/// Creates a new [`TweakedPublicKey`] from a [`PublicKey`]. No tweak is applied, consider
`85`	`84`	/// calling `tap_tweak` on an [`UntweakedPublicKey`] instead of using this constructor.
`@@ -97,4 +96,11 @@ impl TweakedPublicKey {`
`97`	`96`	`&self.0`
`98`	`97`	`}`
`99`	`98`
	`99`	`+ /// Serialize the key as a byte-encoded pair of values. In compressed form`
	`100`	`+ /// the y-coordinate is represented by only a single bit, as x determines`
	`101`	`+ /// it up to one bit.`
	`102`	`+ #[inline]`
	`103`	`+ pub fn serialize(&self) -> [u8; constants::SCHNORRSIG_PUBLIC_KEY_SIZE] {`
	`104`	`+ self.0.serialize()`
	`105`	`+ }`
`100`	`106`	`}`