add CMOX HMAC code

Core/Inc/sts_cmox_hmac_sha.h

@@ -0,0 +1,45 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * File Name          : sts_cmox_hmac_sha.h								   *
+  * @author  Yunhorn (r) Technology Limited Application Team	               *
+  * @brief   Yunhorn (r) SmarToilets (r) HMAC-SHA1 Process file.			   *
+  * Description        : Hash Message Authentication Code SHA				   *
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 Yunhorn Technology Limited.
+  * Copyright (c) 2023 Shenzhen Yunhorn Technology Co., Ltd.
+  * All rights reserved.
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.  		*
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+#ifndef __sts_cmox_hmac_sha_h
+#define __sts_cmox_hmac_sha_h
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "cmox_crypto.h"
+
+typedef struct {
+	  uint8_t hmac_tag[20];
+	  uint8_t hmac_tag_size;
+	  uint8_t ac_pass;
+} hmac_result_t;
+
+void STS_HMAC_TESTING(void);
+uint32_t sts_hmac_sha1(const uint8_t *Key, int key_length, const uint8_t *Message, int message_length, hmac_result_t *hmac_result);
+uint32_t sts_hmac_verify(void);
+
+#endif
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */

Core/Src/cmox_low_level.c

@@ -0,0 +1,51 @@
+/**
+  ******************************************************************************
+  * @file    cmox_low_level.c
+  * @author  MCD Application Team
+  * @brief   This file contains Low level functions for CMOX initialization
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 Yunhorn Technology Limited.
+  * Copyright (c) 2023 Shenzhen Yunhorn Technology Co., Ltd.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file in
+  * the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+
+#include "cmox_init.h"
+#include "cmox_low_level.h"
+#include "stm32wlxx_hal.h"
+
+/**
+  * @brief          CMOX library low level initialization
+  * @param          pArg User defined parameter that is transmitted from initialize service
+  * @retval         Initialization status: @ref CMOX_INIT_SUCCESS / @ref CMOX_INIT_FAIL
+  */
+cmox_init_retval_t cmox_ll_init(void *pArg)
+{
+  (void)pArg;
+  /* Ensure CRC is enabled for cryptographic processing */
+  __HAL_RCC_CRC_RELEASE_RESET();
+  __HAL_RCC_CRC_CLK_ENABLE();
+  return CMOX_INIT_SUCCESS;
+}
+
+/**
+  * @brief          CMOX library low level de-initialization
+  * @param          pArg User defined parameter that is transmitted from finalize service
+  * @retval         De-initialization status: @ref CMOX_INIT_SUCCESS / @ref CMOX_INIT_FAIL
+  */
+cmox_init_retval_t cmox_ll_deInit(void *pArg)
+{
+  (void)pArg;
+  /* Do not turn off CRC to avoid side effect on other SW parts using it */
+  return CMOX_INIT_SUCCESS;
+}
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

Core/Src/sts_cmox_hmac_sha.c

@@ -0,0 +1,90 @@
+/**
+  ******************************************************************************
+  * @file    sts_cmox_hmac_sha.c         									   *
+  * @author  Yunhorn (r) Technology Limited Application Team	               *
+  * @brief   Yunhorn (r) SmarToilets (r) HMAC-SHA1 Process file.			   *
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 Yunhorn Technology Limited.
+  * Copyright (c) 2023 Shenzhen Yunhorn Technology Co., Ltd.
+  * All rights reserved.
+  ******************************************************************************
+  */
+#include "main.h"
+#include "string.h"
+#include "cmox_init.h"
+#include "cmox_low_level.h"
+#include "stm32wlxx_hal.h"
+#include "sts_cmox_hmac_sha.h"
+#include "yunhorn_sts_prd_conf.h"
+#include "sys_app.h"
+
+/* Private macros ------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+
+const uint8_t mKey[] =
+{
+	0x59,0x75,0x33,0x6e,0x31,0x48,0x34,0x4f,0x31,0x52,0x35,0x4e,0x39,0x53,0x32,0x54,0x36,0x53
+};
+
+uint8_t Computed_Tag_SHA1[YUNHORN_STS_AC_CODE_SIZE]={0x0};
+extern volatile uint8_t sts_ac_code[YUNHORN_STS_AC_CODE_SIZE];
+hmac_result_t hmac_result;
+
+uint32_t sts_hmac_verify(void)
+{
+	uint8_t i=0;
+	uint8_t uid[8]="";
+	uint32_t ret=0;
+	hmac_result.ac_pass = 60;
+	hmac_result.hmac_tag_size = 0;
+	GetUniqueId(uid);
+
+	ret = sts_hmac_sha1((const uint8_t *) mKey, sizeof(mKey), (const uint8_t*)(uid+4), 4, &hmac_result);
+	for (i=0;i<sizeof(Computed_Tag_SHA1); i++) {
+			APP_LOG(TS_OFF,VLEVEL_M,"0x%02x ", hmac_result.hmac_tag[i]);
+	}
+
+	ret = memcmp(hmac_result.hmac_tag, (void *)sts_ac_code, sizeof(sts_ac_code));
+
+	if (ret !=0)
+	{
+		hmac_result.ac_pass  =0U;
+		APP_LOG(TS_OFF, VLEVEL_M, "\r\nHMAC Verify Error \r\n");
+	} else
+	{
+		ret =0;
+		hmac_result.ac_pass = 1U;
+		APP_LOG(TS_OFF, VLEVEL_M, "\r\nHMAC Verify Success\r\n");
+	}
+	return ret;
+}
+
+
+uint32_t sts_hmac_sha1(const uint8_t *key, int key_length, const uint8_t *message, int message_length, hmac_result_t *hmac_result)
+{
+	cmox_mac_retval_t retval=0;
+	size_t computed_size=0;
+	/* Initialize cryptographic library */
+	if (cmox_initialize(NULL) != CMOX_INIT_SUCCESS)
+	{
+		retval = 1;
+		return retval;
+	}
+	  /* Compute directly the authentication tag passing all the needed parameters */
+	  retval = cmox_mac_compute(CMOX_HMAC_SHA1_ALGO,     /* Use HMAC SHA256 algorithm */
+	                            message, message_length,  /* Message to authenticate */
+	                            key, key_length,          /* HMAC Key to use */
+	                            NULL, 0,                   /* Custom data */
+								Computed_Tag_SHA1,              /* Data buffer to receive generated authnetication tag */
+	                            sizeof(Computed_Tag_SHA1),      /* Expected authentication tag size */
+	                            &computed_size);           /* Generated tag size */
+
+	  memcpy(hmac_result->hmac_tag, Computed_Tag_SHA1, sizeof(Computed_Tag_SHA1));
+	  hmac_result->hmac_tag_size = computed_size;
+
+	  return retval;
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/