diff --git a/include/wrapping_dap_enc_key.h b/include/wrapping_dap_enc_key.h
index 6bc80252b2940fcd41812d6ed9606e2769ed9483..824f99d7a14af77fded5c39149893ff790ee849c 100644
--- a/include/wrapping_dap_enc_key.h
+++ b/include/wrapping_dap_enc_key.h
@@ -32,8 +32,4 @@ PyObject *dap_enc_gen_key_public_size_py(PyObject *self, PyObject *args);//dap_e
 PyObject *dap_enc_gen_key_public_py(PyObject *self, PyObject *args);//dap_enc_key_t *a_key, void * a_output); ->int
 
 PyObject *dap_enc_key_signature_delete_py(PyObject *self, PyObject *args);//dap_enc_key_type_t a_key_type, uint8_t *a_sig_buf);     ->void
-PyObject *dap_enc_key_delete_py(PyObject *self, PyObject *args);//dap_enc_key_t * a_key);       ->void
-
-//void init_wrapping_dap_enc_key();
-
-//dap_enc_key_t* get_dap_enc_key(PyBytesObject *object);
\ No newline at end of file
+PyObject *dap_enc_key_delete_py(PyObject *self, PyObject *args);//dap_enc_key_t * a_key);       ->void
\ No newline at end of file
diff --git a/src/wrapping_dap_enc_key.c b/src/wrapping_dap_enc_key.c
index 929a59b856e447781a2c7b9239fbf4660982570c..a07892a405e828e464441fb6aff545e73fe6814a 100644
--- a/src/wrapping_dap_enc_key.c
+++ b/src/wrapping_dap_enc_key.c
@@ -1,10 +1,33 @@
 #include "wrapping_dap_enc_key.h"
 
 PyObject* dap_enc_key_get_enc_size_py(PyObject *self, PyObject *args){
-    return PyLong_FromLong(0);
+    uint8_t key_id;
+    size_t buff_in_size;
+    if (!PyArg_ParseTuple(args, "h|i"), &key_id, &buff_in_size){
+        return NULL;
+    }
+    dap_enc_key_t *key = key_list_get_key(keys, key_id);
+    if (key == NULL)
+        return NULL;
+    size_t size_buff = dap_enc_key_get_enc_size(key, buff_in_size);
+    if (size_buff == 0)
+        return NULL;
+    return  PyLong_FromSize_t(size_buff);
 }
+
 PyObject* dap_enc_key_get_dec_size_py(PyObject *self, PyObject *args){
-    return PyLong_FromLong(0);
+    uint8_t key_id;
+    size_t buff_in_size;
+    if (!PyArg_ParseTuple(args, "h|i"), &key_id, &buff_in_size){
+        return NULL;
+    }
+    dap_enc_key_t *key = key_list_get_key(keys, key_id);
+    if (key == NULL)
+        return NULL;
+    size_t size_buff = dap_enc_key_get_dec_size(key, buff_in_size);
+    if (size_buff == 0)
+        return NULL;
+    return  PyLong_FromSize_t(size_buff);
 }
 
 // allocate memory for key struct
@@ -22,29 +45,79 @@ PyObject* dap_enc_key_new_py(PyObject *self, PyObject *args){
 }
 
 /// default gen key
-PyObject *dap_enc_key_new_generate_py(PyObject *self, PyObject *args){
+PyObject *dap_enc_key_new_generate_py(PyObject *self, PyObject *args){ ///!!!!!!! ERR
+    /*int type_key;
+    PyObject *kex_buf;
+    size_t kex_size;
+    PyObject* seed,
+    size_t seed_size;
+    size_t key_size
+    if (PyArg_ParseTuple(args, "i|O|n|O|n|n", &type_key, &kex_buf, &kex_size, &seed, &seed_size, &key_size)){
+        return NULL;
+    }
+    //dap_enc_key_new_generate - restart*/
     return PyLong_FromLong(0);
 }
 
 // update struct dap_enc_key_t after insert foreign keys
 PyObject* dap_enc_key_update_py(PyObject *self, PyObject *args){
+    uint8_t key_id;
+    if (!PyArg_ParseTuple(args, "h", &key_id)){
+        return NULL;
+    }
+    dap_enc_key_t *key = key_list_get_key(keys, key_id);
+    if (key == NULL) {
+        return NULL;
+    }
+    dap_enc_key_update(key);
     return PyLong_FromLong(0);
 }
 
 // for asymmetric gen public key
-PyObject *dap_enc_gen_pub_key_from_priv_py(PyObject *self, PyObject *args){
+PyObject *dap_enc_gen_pub_key_from_priv_py(PyObject *self, PyObject *args){ //NOTE libdap-crypto/src/libdap-crypto.c
     return PyLong_FromLong(0);
 }
 
 
 PyObject *dap_enc_gen_key_public_size_py(PyObject *self, PyObject *args){
-    return PyLong_FromLong(0);
+    uint8_t  key_id;
+    if (PyArg_ParseTuple(args, "h", &key_id)){
+        return NULL;
+    }
+    dap_enc_key_t *key = key_list_get_key(keys, key_id);
+    if (key == NULL){
+        return NULL;
+    }
+    size_t size = dap_enc_gen_key_public_size(key);
+    return PyLong_FromSize_t(size);
 }
+
 PyObject *dap_enc_gen_key_public_py(PyObject *self, PyObject *args){
-    return PyLong_FromLong(0);
+    uint8_t  key_id;
+    PyObject *obj;
+    if (PyArg_ParseTuple(args, "h|O", &key_id, &obj)){
+        return NULL;
+    }
+    dap_enc_key_t *key = key_list_get_key(keys, key_id);
+    if (key == NULL){
+        return NULL;
+    }
+    int size = dap_enc_gen_key_public(key, obj);
+    return PyLong_FromLong(size);
 }
 
 PyObject *dap_enc_key_signature_delete_py(PyObject *self, PyObject *args){
+    int type_key;
+    uint8_t *a_sig_buf;
+    uint8_t sig_buf;
+    if(!PyArg_ParseTuple(args, "i|h", &type_key, &sig_buf)){
+        return NULL;
+    }
+    if (type_key < 0 || type_key > 16){
+        return PyLong_FromLong(-1);
+    }
+    a_sig_buf = (uint8_t*)sig_buf;
+    dap_enc_key_signature_delete(type_key, a_sig_buf);
     return PyLong_FromLong(0);
 }