From 098658dc8b74759416854d2de8497b406a3c0193 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=B6ren=20Meier?= <soeren@s-me.ch>
Date: Sun, 27 Aug 2023 22:28:06 +0200
Subject: [PATCH] ed: Add `SigningKey::as_bytes` (#561)

Allows to get a reference to the secret bytes without making a copy.
---
 ed25519-dalek/src/signing.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ed25519-dalek/src/signing.rs b/ed25519-dalek/src/signing.rs
index f89e537..c141e6d 100644
--- a/ed25519-dalek/src/signing.rs
+++ b/ed25519-dalek/src/signing.rs
@@ -110,6 +110,12 @@ impl SigningKey {
         self.secret_key
     }
 
+    /// Convert this [`SigningKey`] into a [`SecretKey`] reference
+    #[inline]
+    pub fn as_bytes(&self) -> &SecretKey {
+        &self.secret_key
+    }
+
     /// Construct a [`SigningKey`] from the bytes of a `VerifyingKey` and `SecretKey`.
     ///
     /// # Inputs