Add =default copy constructor decls for some pubkey types.

This inhibits default creation of C++11 move operators which we
do not want.

GH #849

3 files changed, 15 insertions, 1 deletions

diff --git a/src/lib/pubkey/dl_algo/dl_algo.h b/src/lib/pubkey/dl_algo/dl_algo.h
index 044aae2e6..4c0d56931 100644
--- a/src/lib/pubkey/dl_algo/dl_algo.h
+++ b/src/lib/pubkey/dl_algo/dl_algo.h
@@ -73,6 +73,8 @@ class BOTAN_DLL DL_Scheme_PublicKey : public virtual Public_Key
                           const std::vector<uint8_t>& key_bits,
                           DL_Group::Format group_format);
 
+      DL_Scheme_PublicKey& operator=(const DL_Scheme_PublicKey& other) = default;
+
    protected:
       DL_Scheme_PublicKey() {}
 
@@ -114,6 +116,8 @@ class BOTAN_DLL DL_Scheme_PrivateKey : public virtual DL_Scheme_PublicKey,
                            const secure_vector<uint8_t>& key_bits,
                            DL_Group::Format group_format);
 
+      DL_Scheme_PrivateKey& operator=(const DL_Scheme_PrivateKey& other) = default;
+
    protected:
       DL_Scheme_PrivateKey() {}
 
diff --git a/src/lib/pubkey/ecc_key/ecc_key.h b/src/lib/pubkey/ecc_key/ecc_key.h
index 60e29bffc..186182ba0 100644
--- a/src/lib/pubkey/ecc_key/ecc_key.h
+++ b/src/lib/pubkey/ecc_key/ecc_key.h
@@ -45,6 +45,8 @@ class BOTAN_DLL EC_PublicKey : public virtual Public_Key
       EC_PublicKey(const AlgorithmIdentifier& alg_id,
                    const std::vector<uint8_t>& key_bits);
 
+      EC_PublicKey& operator=(const EC_PublicKey& other) = default;
+
       /**
       * Get the public point of this key.
       * @throw Invalid_State is thrown if the
@@ -133,6 +135,8 @@ class BOTAN_DLL EC_PrivateKey : public virtual EC_PublicKey,
                     const secure_vector<uint8_t>& key_bits,
                     bool with_modular_inverse=false);
 
+      EC_PrivateKey& operator=(const EC_PrivateKey& other) = default;
+
       secure_vector<uint8_t> private_key_bits() const override;
 
       /**
diff --git a/src/lib/pubkey/pk_keys.h b/src/lib/pubkey/pk_keys.h
index 1e7bd3216..833dda69e 100644
--- a/src/lib/pubkey/pk_keys.h
+++ b/src/lib/pubkey/pk_keys.h
@@ -24,7 +24,9 @@ class RandomNumberGenerator;
 class BOTAN_DLL Public_Key
    {
    public:
-      virtual ~Public_Key() {}
+      virtual ~Public_Key() = default;
+
+      virtual Public_Key& operator=(const Public_Key& other) = default;
 
       /**
       * Get the name of the underlying public key scheme.
@@ -163,6 +165,10 @@ class BOTAN_DLL Public_Key
 class BOTAN_DLL Private_Key : public virtual Public_Key
    {
    public:
+      virtual ~Private_Key() = default;
+
+      virtual Private_Key& operator=(const Private_Key& other) = default;
+
       /**
       * @return BER encoded private key bits
       */