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We are adding wolfBoot support for the new STM32C0. This is a low cost MCU similar to the STM32G0 based on a Cortex-M0 (48MHz). It is a very low cost general purpose 32-bit MCU with up to 32KB flash and 12KB RAM.
Our wolfBoot secure bootloader is the only solution available for this platform thanks to our small code size. Most STM32 parts are supported with wolfBoot out of the box. See our video series with ST for a tutorial on using wolfBoot.
See the STM32C0 announcement from ST.
Features:
- Written in C for bare-metal use
- Small footprint to run on small embedded devices
- Memory safety (no malloc/free)
- Support for on-board or external SPI flash
- Simple partitioning and header scheme
- Abstracted HAL design for CPU speed and flash
- Bootloader handles swapping and loading of partitions
- Key tools for key generation/import and signing
- Encrypted updates
- Delta updates (only differences)
Signature algorithms supported:
- ECC (SECP256R1,SECP384R1)
- RSA (2048/3072/4096)
- ED25519
- ED448
Firmware image integrity using hash digest:
- SHA2-256
- SHA2-384
- SHA3-384
Flexible partition scheme determined at build-time:
- Bootloader (10-30KB)
- Application
- Update
- Swap (1 sector)
- And custom partition ID’s
Reliable Firmware update mechanism:
- Independent from the update transport mechanism
- Fallback to a previous version when the update fails
- Resume interrupted swap operations during update, in case of power failure
Support for STM hardware crypto acceleration:
- STM32 HASH/AES/PKA
- ST33TP* TPM 2.0 using wolfTPM
If you are interested in trying our wolfBoot on the STM32C0, curious about post-quantum signature support in wolfBoot or have questions about any of the above, please contact us at facts@wolfSSL.com or call us at +1 425 245 8247.
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