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The X-CUBE-SBSFU Secure Boot and Secure Firmware Update solution allows the update of the STM32 microcontroller built-in program with new firmware versions, adding new features and correcting potential issues. The update process is performed in a secure way to prevent unauthorized updates and access to confidential on-device data.
In addition, Secure Boot (Root of Trust services) checks and activates STM32 security mechanisms, and checks the authenticity and integrity of user application code before every execution to ensure that invalid or malicious code cannot be run.
The Secure Firmware Update application receives the encrypted firmware image, checks its authenticity, decrypts it, and checks the integrity of the code before installing it.
X-CUBE-SBSFU is built on top of STM32Cube software technology, making the portability across different STM32 microcontrollers easy. It is provided as reference code to demonstrate the state-of-the-art usage of STM32 security protection.
The X-CUBE-SBSFU Expansion Package comes with examples running on the STM32L4 Series, STM32F4 Series, STM32F7 Series, and STM32G0 Series.
X-CUBE-SBSFU is classified ECCN 5D002.主な特徴
- Secure Boot / Root of Trust: boot path cannot be modified. User application authenticity and integrity is checked before execution.
- Secure firmware loader: downloads an encrypted firmware image via UART interface / Ymodem protocol and checks its authenticity and integrity before installing it.
- Dual image support for safe firmware programing:
- Error detection and rollback capabilities during image installation.
- Over The Air firmware download possible from user application.
- Single image support for maximized user application size:
- Error detection without rollback capability during installation.
- Firmware update only possible via the SBSFU application (local loader function).
- Asymmetric and symmetric cryptographic schemes supported:
- ECDSA asymmetric cryptography scheme for firmware verification with AES-CBC decryption.
- ECDSA asymmetric cryptography scheme for firmware verification without decryption.
- AES-GCM symmetric cryptography scheme for firmware verification and decryption.
- Cryptography with integrated firmware preparation scripts delivered as executable and source code for customization flexibility.
- Secure Engine services: protected environment managing all critical data (such as firmware decryption key), and operations (such as cryptography operations).
- STM32 security mechanisms: combination demonstrating the state-of-the-art use of STM32 protections.
ソフトウェア入手
| 製品型番 | General Description | Software Version | Supplier | GitHub link | ダウンロード |
|---|---|---|---|---|---|
| X-CUBE-SBSFU | Secure boot & secure firmware update software expansion for STM32Cube | 2.1.0 | ST | - |
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ビデオ
The STM32Cube.AI is an extension pack of the widely used STM32CubeMX configuration and code generation tool enabling AI on STM32 Arm® Cortex®-M-based microcontrollers.
The X-CUBE-VS4A Expansion Package consists of a set of libraries and application examples for STM32F7 Series microcontrollers acting as Alexa-enabled devices. It runs on the 32F769IDISCOVERY board, which provides a native Ethernet interface.
開発ツール･ハードウェア
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写真 Part number 製造元 Description 
STM32CubeProg ST STM32CubeProgrammer software for programming STM32 products 製品型番STM32CubeProgrammer software for programming STM32 products
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評価ツール
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写真 Part number 製造元 Description 
32F413HDISCOVERY ST Discovery kit with STM32F413ZH MCU 
32F769IDISCOVERY ST Discovery kit with STM32F769NI MCU 
32L496GDISCOVERY ST Discovery kit with STM32L496AG MCU 
B-L475E-IOT01A ST STM32L4 Discovery kit IoT node, low-power wireless, BLE, NFC, SubGHz, Wi-Fi 
NUCLEO-G071RB ST STM32 Nucleo-64 development board with STM32G071RB MCU, supports Arduino and ST morpho connectivity 
NUCLEO-L432KC ST STM32 Nucleo-32 development board with STM32L432KC MCU, supports Arduino connectivity 
NUCLEO-L476RG ST STM32 Nucleo-64 development board with STM32L476RG MCU, supports Arduino and ST morpho connectivity 製品型番Discovery kit with STM32F413ZH MCU
Discovery kit with STM32F769NI MCU
Discovery kit with STM32L496AG MCU
STM32L4 Discovery kit IoT node, low-power wireless, BLE, NFC, SubGHz, Wi-Fi
STM32 Nucleo-64 development board with STM32G071RB MCU, supports Arduino and ST morpho connectivity
STM32 Nucleo-32 development board with STM32L432KC MCU, supports Arduino connectivity
STM32 Nucleo-64 development board with STM32L476RG MCU, supports Arduino and ST morpho connectivity
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