[+] public key TX item type, "extra" section in CryptoNote transaction

[+] signature TX item type , "Tx suffix" in CryptoNote transaction

CMakeLists.txt

@@ -38,6 +38,8 @@ set(DAP_CHAIN_HEADERS
 	dap_chain_section_tx.h
         dap_chain_section_tx_in.h
         dap_chain_section_tx_out.h
+        dap_chain_section_tx_pkey.h
+        dap_chain_section_tx_sig.h
         dap_hash.h
         dap_hash_fusion.h
         dap_hash_keccak.h

dap_chain_block_txs.c

@@ -21,3 +21,4 @@
     You should have received a copy of the GNU General Public License
     along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
 */
+#include "dap_chain_block_txs.h"

dap_chain_common.h

@@ -44,6 +44,7 @@ typedef enum dap_chain_hash_kind {
 typedef union dap_chain_sig_type{
     enum {
         SIG_TYPE_NEWHOPE = 0x0000,
+        SIG_TYPE_KEY_IMAGE = 0xf000, /// @brief key image for anonymous transaction
         SIG_TYPE_MULTI = 0xffff ///  @brief Has inside subset of different signatures and sign composed with all of them
 
     } type: 16;

dap_chain_section_tx.h

@@ -26,8 +26,10 @@
 #include "dap_chain_section.h"
 
 typedef enum dap_chain_tx_item_type{
-    TX_ITEM_TYPE_IN = 0x00,
-    TX_ITEM_TYPE_OUT = 0x10,
+    TX_ITEM_TYPE_IN = 0x00, /// @brief  Transaction inputs
+    TX_ITEM_TYPE_OUT = 0x10, /// @brief  Transaction outputs
+    TX_ITEM_TYPE_PKEY = 0x20,
+    TX_ITEM_TYPE_SIG = 0x30,
 } dap_chain_tx_item_type_t;
 
 /**

dap_chain_section_tx_pkey.h

+/*
+ * Authors:
+ * Dmitriy A. Gearasimov <kahovski@gmail.com>
+ * DeM Labs Inc.   https://demlabs.net
+ * DeM Labs Open source community https://github.com/demlabsinc
+ * Copyright  (c) 2017-2018
+ * All rights reserved.
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+    DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    DAP is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+#include <stdint.h>
+#include "dap_common.h"
+#include "dap_chain_common.h"
+#include "dap_chain_section_tx.h"
+/**
+  * @struct dap_chain_tx_pkey
+  * @brief TX item with one of the transaction's public keys
+  */
+typedef struct dap_chain_tx_pkey{
+    struct {
+        dap_chain_tx_item_type_t type:8; /// @param    type            @brief Transaction item type
+        dap_chain_sig_type_t sig_type; /// Signature type
+        uint32_t sig_size; /// Signature size
+    } header; /// Only header's hash is used for verification
+    uint32_t seq_no; /// Sequence number, out of the header so could be changed during reorganization
+    uint8_t pkey[]; /// @param sig @brief raw pkey dat
+} DAP_ALIGN_PACKED dap_chain_tx_pkey_t;

dap_chain_section_tx_sig.h

+/*
+ * Authors:
+ * Dmitriy A. Gearasimov <kahovski@gmail.com>
+ * DeM Labs Inc.   https://demlabs.net
+ * DeM Labs Open source community https://github.com/demlabsinc
+ * Copyright  (c) 2017-2018
+ * All rights reserved.
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+    DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    DAP is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+#include <stdint.h>
+#include "dap_common.h"
+#include "dap_chain_common.h"
+#include "dap_chain_section_tx.h"
+
+
+/**
+  * @struct dap_chain_tx_sig
+  * @brief Section with set of transaction signatures
+  */
+typedef struct dap_chain_tx_sig{
+    struct {
+        dap_chain_tx_item_type_t type:8; /// @param    type            @brief Transaction item type
+        dap_chain_sig_type_t sig_type; /// Signature type
+        uint32_t sig_size; /// Signature size
+    } header; /// Only header's hash is used for verification
+    uint8_t sig[]; /// @param sig @brief raw signature data
+} DAP_ALIGN_PACKED dap_chain_tx_sig_t;