/**
  @page KMS_Embedded_RSA_Key KMS application

  @verbatim
  ******************************************************************************
  * @file    Applications/KMS/KMS_Embedded_RSA_Key/readme.txt 
  * @author  MCD Application Team
  * @brief   Description of the KMS_Embedded_RSA_Key application.
  ******************************************************************************
  *
  * Copyright (c) 2020 STMicroelectronics.
  * 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.
  *
  ******************************************************************************
  @endverbatim

@par Application Description 

How to use the KMS middleware to sign and verify a message with RSA key.

Application configuration:
KMS is configured with embedded key:
- one RSA 2048 bits modulus length key

Application execution:
The application signs a clear text message, then verifies the generated signature against the message.

For debug: A terminal connected with the board via VCOM is needed to see the execution log and test status.

Connection needed:
Connect ST-Link cable to the PC USB port to display data on the HyperTerminal.
A virtual COM port will then appear in the HyperTerminal.
  - Hyperterminal configuration:
    - Data Length = 8 bits
    - One Stop Bit
    - Parity: none
    - BaudRate = 115200 baud
    - Flow control: None

NUCLEO-WL55JC RevC board LED3 is also used to report test status:
  - LED3 is turned on at the end of the execution when all completed successfully
  - LED3 is blinking twice per second when an error occurred

@par Keywords

Cryptography, KMS, Authentication, RSA

@par Directory contents 

  - KMS/KMS_Embedded_RSA_Key/Inc/stm32wlxx_nucleo_conf.h       BSP configuration file
  - KMS/KMS_Embedded_RSA_Key/Inc/stm32wlxx_hal_conf.h          HAL configuration file
  - KMS/KMS_Embedded_RSA_Key/Inc/stm32wlxx_it.h                Interrupt handlers header file
  - KMS/KMS_Embedded_RSA_Key/Inc/app_kms.h                     Header for app_kms.c module
  - KMS/KMS_Embedded_RSA_Key/Inc/ca_conf.h                     Cryptographic configuration file
  - KMS/KMS_Embedded_RSA_Key/Inc/ca_low_level.h                Header for ca_low_level.c module
  - KMS/KMS_Embedded_RSA_Key/Inc/com.h                         Header for com.c module
  - KMS/KMS_Embedded_RSA_Key/Inc/kms_config.h                  KMS configuration file
  - KMS/KMS_Embedded_RSA_Key/Inc/kms_low_level.h               Header for kms_low_level.c module
  - KMS/KMS_Embedded_RSA_Key/Inc/kms_mem_pool_def.h            KMS memory pool definition file
  - KMS/KMS_Embedded_RSA_Key/Inc/kms_platf_objects_config.h    KMS embedded objects definition files
  - KMS/KMS_Embedded_RSA_Key/Inc/kms_platf_objects_interface.h KMS embedded objects interface files
  - KMS/KMS_Embedded_RSA_Key/Inc/main.h                        Header for main.c module
  - KMS/KMS_Embedded_RSA_Key/Inc/mbedtls_config.h              MBED crypto configuration file
  - KMS/KMS_Embedded_RSA_Key/Src/stm32wlxx_it.c                Interrupt handlers
  - KMS/KMS_Embedded_RSA_Key/Src/stm32wlxx_hal_msp.c           HAL MSP module
  - KMS/KMS_Embedded_RSA_Key/Src/app_kms.c                     KMS application
  - KMS/KMS_Embedded_RSA_Key/Src/ca_low_level.c                Cryptographic low level source file
  - KMS/KMS_Embedded_RSA_Key/Src/com.c                         Communication module file
  - KMS/KMS_Embedded_RSA_Key/Src/kms_low_level.c               KMS low level source file
  - KMS/KMS_Embedded_RSA_Key/Src/main.c                        Main program
  - KMS/KMS_Embedded_RSA_Key/Src/system_stm32wlxx.c            STM32WLxx system source file


@par Hardware and Software environment

  - This application runs on STM32WL55xx devices.
    
  - This application has been tested with NUCLEO-WL55JC RevC board and can be
    easily tailored to any other supported device and development board.
  - This application needs a terminal emulator.



@par How to use it ? 

In order to make the program work, you must do the following :
 - Open your preferred toolchain
 - Rebuild all files and load your image into target memory
 - Run the application

 * <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
 */