wolfSSL STM32 Example for STM32 Cube IDE

This example includes:

wolfCrypt test
wolfCrypt benchmark
wolfSSL TLS client/server test using in-memory transfers

These examples use the Cube HAL for STM32.

Requirements

STM32CubeIDE: Integrated Development Environment for STM32 https://www.st.com/en/development-tools/stm32cubeide.html

Configuration

The settings for the wolfSTM32 project are located in <wolfssl-root>/IDE/STM32Cube/wolfSSL.wolfSSL_conf.h. The section for "Hardware platform" may need to be adjusted depending on your processor and board:

To enable STM32F2 support define WOLFSSL_STM32F2.
To enable STM32F4 support define WOLFSSL_STM32F4.
To enable STM32F7 support define WOLFSSL_STM32F7.
To enable STM32L4 support define WOLFSSL_STM32L4.
To enable STM32L5 support define WOLFSSL_STM32L5.
To enable STM32H7 support define WOLFSSL_STM32H7.
To enable STM32WB support define WOLFSSL_STM32WB.

To use the STM32 Cube HAL support make sure WOLFSSL_STM32_CUBEMX is defined.

The L5 and WB55 support ECC PKA acceleration, which is enabled with WOLFSSL_STM32_PKA.

To disable hardware crypto acceleration you can define:

NO_STM32_HASH
NO_STM32_CRYPTO

To enable the latest Cube HAL support please define STM32_HAL_V2.

If you'd like to use the older Standard Peripheral library undefine WOLFSSL_STM32_CUBEMX.

If you are using FreeRTOS make sure your FreeRTOSConfig.h has its configTOTAL_HEAP_SIZE increased.

The TLS client/server benchmark example requires about 76 KB for allocated tasks (with stack) and peak heap.

STM32 Cube Pack

STM32 Cube Pack Installation

Download wolfSSL Cube Pack
Run the “STM32CubeMX” tool.
Under “Manage software installations” click “INSTALL/REMOVE” button.
From Local and choose “I-CUBE-WOLFSSL-WOLFSSL.pack”.

STM32 Cube Pack Usage

Create or open a Cube Project based on your hardware.
Under “Software Packs” choose “Select Components”.
Find and check all components for the wolfSSL.wolfSSL packs (wolfSSL / Core, wolfCrypt / Core and wolfCrypt / Test). Close
Under the “Software Packs” section click on “wolfSSL.wolfSSL” and configure the basic parameters.
For Cortex-M recommend “Math Configuration” -> “Single Precision Cortex-M Math”
Generate Code

STM32 Cube IOC Templates (for existing targets)

Using the STM32CubeMX tool, load the <wolfssl-root>/IDE/STM32Cube/Boards/*.ioc file for your target.
Adjust the HAL options based on your specific micro-controller.
Enable the security RNG/HASH/CRYPT if available.
Enable the RTC and UART if available.
Add wolfSSL via Additional Software and check/configure wolfSSL.
Generate source code.

Example `IDE/STM32Cube/wolfssl_example.c` Output

....MENU

.t. WolfCrypt Test
.b. WolfCrypt Benchmark
.l. WolfSSL TLS Bench
.e. Show Cipher List

Please select one of the above options:

Benchmarks

See STM32_Benchmarks.md.

Support

For questions please email support@wolfssl.com

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