Remove Algo_Registry usage from public key code.

Instead the key types exposes operations like `create_encryption_op`
which will return the relevant operation if the algorithm supports it.

Changes pubkey.h interface, now RNG is passed at init time.
Blinder previous created its own RNG, now it takes it from app.

1 files changed, 8 insertions, 3 deletions

diff --git a/src/lib/pubkey/curve25519/curve25519.cpp b/src/lib/pubkey/curve25519/curve25519.cpp
index aa0646d04..b1dfc59a1 100644
--- a/src/lib/pubkey/curve25519/curve25519.cpp
+++ b/src/lib/pubkey/curve25519/curve25519.cpp
@@ -5,8 +5,8 @@
 * Botan is released under the Simplified BSD License (see license.txt)
 */
 
-#include <botan/internal/pk_utils.h>
 #include <botan/curve25519.h>
+#include <botan/internal/pk_ops_impl.h>
 #include <botan/ber_dec.h>
 #include <botan/der_enc.h>
 
@@ -134,9 +134,14 @@ class Curve25519_KA_Operation : public PK_Ops::Key_Agreement_with_KDF
       const Curve25519_PrivateKey& m_key;
    };
 
-BOTAN_REGISTER_PK_KEY_AGREE_OP("Curve25519", Curve25519_KA_Operation);
-
 }
 
+std::unique_ptr<PK_Ops::Key_Agreement>
+Curve25519_PrivateKey::create_key_agreement_op(RandomNumberGenerator& /*rng*/,
+                                               const std::string& params,
+                                               const std::string& /*provider*/) const
+   {
+   return std::unique_ptr<PK_Ops::Key_Agreement>(new Curve25519_KA_Operation(*this, params));
+   }
 
 }