diff --git a/src/key.rs b/src/key.rs
index 74f607a..2a2dc5b 100644
--- a/src/key.rs
+++ b/src/key.rs
@@ -39,7 +39,7 @@ pub trait PublicKeyParts {
 pub trait PrivateKey: DecryptionPrimitive + PublicKeyParts {}
 
 /// Represents the public part of an RSA key.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, Hash, PartialEq, Eq)]
 #[cfg_attr(
     feature = "serde",
     derive(Serialize, Deserialize),