diff --git a/shared_model/cryptography/blob.hpp b/shared_model/cryptography/blob.hpp
index c5496ef866..c510ebd8d2 100644
--- a/shared_model/cryptography/blob.hpp
+++ b/shared_model/cryptography/blob.hpp
@@ -82,7 +82,7 @@ namespace shared_model {
        * migration to shared model in whole project
        */
       template <typename BlobType>
-      [[deprecated]] BlobType makeOldModel() const {
+      BlobType makeOldModel() const {
         return BlobType::from_string(blob());
       }
 
diff --git a/shared_model/cryptography/ed25519_sha3_impl/CMakeLists.txt b/shared_model/cryptography/ed25519_sha3_impl/CMakeLists.txt
index 348ad9cf34..25f0705917 100644
--- a/shared_model/cryptography/ed25519_sha3_impl/CMakeLists.txt
+++ b/shared_model/cryptography/ed25519_sha3_impl/CMakeLists.txt
@@ -13,6 +13,7 @@
 # limitations under the License.
 
 add_subdirectory(internal)
+add_subdirectory(bindings)
 
 add_library(shared_ed25519_sha3
         signer.cpp
diff --git a/shared_model/cryptography/ed25519_sha3_impl/bindings/CMakeLists.txt b/shared_model/cryptography/ed25519_sha3_impl/bindings/CMakeLists.txt
new file mode 100644
index 0000000000..12923294e3
--- /dev/null
+++ b/shared_model/cryptography/ed25519_sha3_impl/bindings/CMakeLists.txt
@@ -0,0 +1,26 @@
+# Copyright 2017 Soramitsu Co., Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+find_package(SWIG REQUIRED)
+INCLUDE(${SWIG_USE_FILE})
+
+FIND_PACKAGE(PythonLibs REQUIRED)
+INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_PATH})
+SET(CMAKE_SWIG_FLAGS "")
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
+
+SET_SOURCE_FILES_PROPERTIES(crypto.i PROPERTIES CPLUSPLUS ON)
+SWIG_ADD_LIBRARY(crypto LANGUAGE python SOURCES crypto.i)
+
+SWIG_LINK_LIBRARIES(crypto ${PYTHON_LIBRARIES} shared_ed25519_sha3 hash cryptography ed25519_sha3)
diff --git a/shared_model/cryptography/ed25519_sha3_impl/bindings/crypto.i b/shared_model/cryptography/ed25519_sha3_impl/bindings/crypto.i
new file mode 100644
index 0000000000..e87835b3e1
--- /dev/null
+++ b/shared_model/cryptography/ed25519_sha3_impl/bindings/crypto.i
@@ -0,0 +1,51 @@
+/**
+ * Copyright Soramitsu Co., Ltd. 2017 All Rights Reserved.
+ * http://soramitsu.co.jp
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+%module crypto
+%include "std_string.i"
+
+%{
+#include "cryptography/ed25519_sha3_impl/crypto_provider.hpp"
+%}
+
+%include "interfaces/model_primitive.hpp"
+%include "interfaces/primitive.hpp"
+%include "cryptography/blob.hpp"
+%include "cryptography/seed.hpp"
+%include "cryptography/signed.hpp"
+%include "cryptography/public_key.hpp"
+%include "cryptography/private_key.hpp"
+%include "cryptography/keypair.hpp"
+%include "cryptography/ed25519_sha3_impl/crypto_provider.hpp"
+
+namespace shared_model {
+  namespace interface {
+    %template(imodelprim) shared_model::interface::ModelPrimitive<shared_model::crypto::Blob>;
+    %template(ikeypair) ModelPrimitive<crypto::Keypair>;
+    %template(iprim) shared_model::interface::Primitive<crypto::Keypair, iroha::keypair_t>;
+  }
+
+  namespace crypto {
+    class Blob;
+    class Keypair;
+    class Seed;
+    class Signed;
+    class PublicKey;
+    class PrivateKey;
+    class CryptoProvider;
+  }
+}
diff --git a/shared_model/cryptography/ed25519_sha3_impl/crypto_provider.cpp b/shared_model/cryptography/ed25519_sha3_impl/crypto_provider.cpp
index 4be555d17d..24386b9593 100644
--- a/shared_model/cryptography/ed25519_sha3_impl/crypto_provider.cpp
+++ b/shared_model/cryptography/ed25519_sha3_impl/crypto_provider.cpp
@@ -41,9 +41,7 @@ namespace shared_model {
     }
 
     Keypair CryptoProvider::generateKeypair() const {
-      auto keypair = iroha::create_keypair();
-      return Keypair(PublicKey(keypair.pubkey.to_string()),
-                     PrivateKey(keypair.privkey.to_string()));
+      return generateKeypair(generateSeed());
     }
 
     Keypair CryptoProvider::generateKeypair(const Seed &seed) const {
diff --git a/shared_model/cryptography/ed25519_sha3_impl/crypto_provider.hpp b/shared_model/cryptography/ed25519_sha3_impl/crypto_provider.hpp
index 632766756e..fc08d05fa5 100644
--- a/shared_model/cryptography/ed25519_sha3_impl/crypto_provider.hpp
+++ b/shared_model/cryptography/ed25519_sha3_impl/crypto_provider.hpp
@@ -47,8 +47,9 @@ namespace shared_model {
       bool verify(const Signed &signedData,
                   const Blob &orig,
                   const PublicKey &publicKey) const;
+
       /**
-       * Generates nes seed
+       * Generates new seed
        * @return Seed generated
        */
       Seed generateSeed() const;
diff --git a/shared_model/cryptography/ed25519_sha3_impl/internal/CMakeLists.txt b/shared_model/cryptography/ed25519_sha3_impl/internal/CMakeLists.txt
index d7313ea42b..a06c3167e8 100644
--- a/shared_model/cryptography/ed25519_sha3_impl/internal/CMakeLists.txt
+++ b/shared_model/cryptography/ed25519_sha3_impl/internal/CMakeLists.txt
@@ -22,7 +22,6 @@ add_library(hash
         )
 
 target_link_libraries(hash
-        ed25519_sha3
         common
         pb_model_converters
         )
diff --git a/shared_model/cryptography/ed25519_sha3_impl/internal/impl/CMakeLists.txt b/shared_model/cryptography/ed25519_sha3_impl/internal/impl/CMakeLists.txt
index 06b2bf6e12..728d917d55 100644
--- a/shared_model/cryptography/ed25519_sha3_impl/internal/impl/CMakeLists.txt
+++ b/shared_model/cryptography/ed25519_sha3_impl/internal/impl/CMakeLists.txt
@@ -11,4 +11,3 @@ add_library(ed25519_sha3
         sign.c
         verify.c
     )
-#target_include_directories(ed25519_sha3 INTERFACE ed25519)
diff --git a/shared_model/cryptography/keypair.hpp b/shared_model/cryptography/keypair.hpp
index 8ddca4acff..9ff0899db4 100644
--- a/shared_model/cryptography/keypair.hpp
+++ b/shared_model/cryptography/keypair.hpp
@@ -64,7 +64,8 @@ namespace shared_model {
             .finalize();
       }
 
-      OldModelType *makeOldModel() const override {
+      interface::Primitive<Keypair, iroha::keypair_t>::OldModelType *
+      makeOldModel() const override {
         return new iroha::keypair_t{
             .pubkey = publicKey().makeOldModel<PublicKey::OldPublicKeyType>(),
             .privkey =
diff --git a/shared_model/interfaces/primitive.hpp b/shared_model/interfaces/primitive.hpp
index f1472c92ef..a23bb8ca57 100644
--- a/shared_model/interfaces/primitive.hpp
+++ b/shared_model/interfaces/primitive.hpp
@@ -45,7 +45,7 @@ namespace shared_model {
        * model
        * @return pointer for old-style object
        */
-      [[deprecated]] virtual OldModelType *makeOldModel() const = 0;
+      virtual OldModelType *makeOldModel() const = 0;
     };
 
   }  // namespace interface