diff --git a/src/context.rs b/src/context.rs
index 627e016..e617cd5 100644
--- a/src/context.rs
+++ b/src/context.rs
@@ -69,16 +69,19 @@ pub trait Signing: Context {}
 pub trait Verification: Context {}
 
 /// Represents the set of capabilities needed for signing with a user preallocated memory.
+#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct SignOnlyPreallocated<'buf> {
     phantom: PhantomData<&'buf ()>,
 }
 
 /// Represents the set of capabilities needed for verification with a user preallocated memory.
+#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct VerifyOnlyPreallocated<'buf> {
     phantom: PhantomData<&'buf ()>,
 }
 
 /// Represents the set of all capabilities with a user preallocated memory.
+#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct AllPreallocated<'buf> {
     phantom: PhantomData<&'buf ()>,
 }
@@ -112,14 +115,17 @@ mod alloc_only {
 
     /// Represents the set of capabilities needed for signing.
     #[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
+    #[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
     pub enum SignOnly {}
 
     /// Represents the set of capabilities needed for verification.
     #[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
+    #[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
     pub enum VerifyOnly {}
 
     /// Represents the set of all capabilities.
     #[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
+    #[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
     pub enum All {}
 
     impl Signing for SignOnly {}
diff --git a/src/key.rs b/src/key.rs
index ee52b81..8c0f0a0 100644
--- a/src/key.rs
+++ b/src/key.rs
@@ -511,7 +511,8 @@ impl Ord for PublicKey {
 }
 
 /// Opaque data structure that holds a keypair consisting of a secret and a public key.
-#[derive(Clone)]
+// Should secrets implement Copy: https://github.com/rust-bitcoin/rust-secp256k1/issues/363
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct KeyPair(ffi::KeyPair);
 impl_display_secret!(KeyPair);
 
diff --git a/src/lib.rs b/src/lib.rs
index 4419006..02eb0c8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -132,6 +132,8 @@
 #![deny(non_snake_case)]
 #![deny(unused_mut)]
 #![warn(missing_docs)]
+#![warn(missing_copy_implementations)]
+#![warn(missing_debug_implementations)]
 
 
 #![cfg_attr(all(not(test), not(feature = "std")), no_std)]
diff --git a/src/secret.rs b/src/secret.rs
index c174122..28bd80d 100644
--- a/src/secret.rs
+++ b/src/secret.rs
@@ -57,6 +57,7 @@ macro_rules! impl_display_secret {
 ///
 /// [`Display`]: fmt::Display
 /// [`Debug`]: fmt::Debug
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct DisplaySecret {
     secret: [u8; SECRET_KEY_SIZE]
 }