openpgp: Make PKESK3::for_recipient polymorphic over key parts.

1 files changed, 5 insertions, 4 deletions

diff --git a/openpgp/src/packet/pkesk.rs b/openpgp/src/packet/pkesk.rs
index 8f32d86d..0a39cd60 100644
--- a/openpgp/src/packet/pkesk.rs
+++ b/openpgp/src/packet/pkesk.rs
@@ -73,11 +73,12 @@ impl PKESK3 {
     ///
     /// The given symmetric algorithm must match the algorithm that is
     /// used to encrypt the payload.
-    pub fn for_recipient<R>(algo: SymmetricAlgorithm,
-                            session_key: &SessionKey,
-                            recipient: &Key<key::PublicParts, R>)
+    pub fn for_recipient<P, R>(algo: SymmetricAlgorithm,
+                               session_key: &SessionKey,
+                               recipient: &Key<P, R>)
         -> Result<PKESK3>
-        where R: key::KeyRole
+        where P: key::KeyParts,
+              R: key::KeyRole,
     {
         // We need to prefix the cipher specifier to the session key,
         // and a two-octet checksum.