add SigningParts::{ak, alpha}

CHANGELOG.md

@@ -12,6 +12,7 @@ visibility of methods and struct for the `unstable-frost` feature.
 - Added `SpendValidatingKey` serialization and deserialization from bytes
 visibility under the `unstable-frost` feature
   - `orchard::keys::SpendValidatingKey`
+- Added `SigningParts::{ak, alpha}` getters under the `unstable-frost` feature
 
 ## [0.8.0] - 2024-03-25
 

src/builder.rs

@@ -751,6 +751,18 @@ pub struct SigningParts {
     alpha: pallas::Scalar,
 }
 
+#[cfg(feature = "unstable-frost")]
+impl SigningParts {
+    /// Return the spend validating key for this action.
+    pub fn ak(&self) -> &SpendValidatingKey {
+        &self.ak
+    }
+    /// Return the randomization for this action.
+    pub fn alpha(&self) -> pallas::Scalar {
+        self.alpha
+    }
+}
+
 /// Marker for an unauthorized bundle with no signatures.
 #[derive(Clone, Debug)]
 pub struct Unauthorized {