feat(signer): Create method to multiply with secret key scalar

Adrian Nagy · sebastiencs · commit fee6e8353266 · 2024-09-18T14:09:29.000+02:00
diff --git a/signer/src/keypair.rs b/signer/src/keypair.rs
@@ -93,6 +93,12 @@ impl Keypair {
     pub fn to_hex(&self) -> String {
         hex::encode(self.to_bytes())
     }
+
+    /// Performs scalar multiplication with the secret key
+    pub fn secret_multiply_with_curve_point(&self, multiplicand: CurvePoint) -> CurvePoint {
+        use ark_ec::AffineCurve;
+        multiplicand.mul(self.secret.clone().into_scalar()).into_affine()
+    }
 }
 
 impl fmt::Debug for Keypair {

Original file line number	Diff line number	Diff line change
`@@ -93,6 +93,12 @@ impl Keypair {`
`93`	`93`	`pub fn to_hex(&self) -> String {`
`94`	`94`	`hex::encode(self.to_bytes())`
`95`	`95`	`}`
	`96`	`+`
	`97`	`+ /// Performs scalar multiplication with the secret key`
	`98`	`+ pub fn secret_multiply_with_curve_point(&self, multiplicand: CurvePoint) -> CurvePoint {`
	`99`	`+ use ark_ec::AffineCurve;`
	`100`	`+ multiplicand.mul(self.secret.clone().into_scalar()).into_affine()`
	`101`	`+ }`
`96`	`102`	`}`
`97`	`103`
`98`	`104`	`impl fmt::Debug for Keypair {`