wolfBoot Changelog

Below you will find the wolfBoot ChangeLog documenting the changes that took place with each release of wolfBoot since the project’s beginning in 2018.

wolfBoot 1.6

(08/25/2020)

  • Support for encryption of external partitions
  • Support for MPU on ARM Cortex-M platforms
  • Support for using an RSA signature that includes ASN.1 encoded header
  • Support for bootloader updates from external flash: SPI functions can run from RAM
  • Added TPM RSA verify support
  • Added option to use software SHA in combination with TPM
  • Fix logic in emergency updates
  • Fix loop logic in bootloader update
  • Fix manifest header boundary checks (prevents parser overflows)
  • Improve sanity checks for aligned fields in manifest header
  • Add unit tests against manifest header parser
  • Fix Ed25519 signing tool
  • Fix RSA keygen tool
  • wolfTPM integration: improvements and bugfixes
  • Fix configuration and documentation for STM32WB
  • Fix alignment of trailers in NVM_WRITEONCE mode
  • Fix uint16_t index overflow on platforms with very small flash pages
  • Fix for building C key tools on windows (Cygwin/MinGW/Visual Studio)
  • Fix in LPC driver: correct page alignment in flash write
  • Hardware support
  • New HAL: Cypress psoc6
  • Support for psoc6 Hardware crypto accelerator
  • SPI driver: Nordic nRF52

wolfBoot 1.5

(04/28/2020)

  • RSA 4096 bit digital signature verification
  • SHA3
  • Portable C key management tools
  • Improved integration with Microsoft Windows
    • Visual Studio solution for key management tools
  • Support to compile with IAR
    • Fixed incompatible code
    • added IAR example project
  • New architecture: ARMv8 (64-bit)
    • ARM Cortex-A boot code compatible with TrustZone
    • Linux staging and device tree support
  • External flash abstraction
    • remote update partition accessed via UART
  • Hardware support
    • New HAL: raspberry-pi
    • New HAL: Xilinx Zynq+
    • New HAL: NXP LPC54xx

wolfBoot 1.4

(01/06/2020)

  • TPM2.0 support
  • Integration with wolfTPM
  • Extended STM32 SPI driver to support dual TPM/FLASH communication
  • Tested on STM32 with Infineon 9670
  • RSA 2048 bit digital signature verification
  • Hardware support
  • New HAL: STM32H7

wolfBoot 1.3

(11/13/2019)

  • New configuration mechanism based on make config, helps creating and storing target-specific configurations
  • Configuration examples provided for a number of existing platforms
  • fix bug in self-update mechanism when SPI flash is in use
  • Introduced support for hardware-assisted signature verification, using public-key hardware accelerators
    • Added support for STM32 PKA (e.g. STM32WB55)
    • Added support for Kinetis/Freescale PKHA (e.g. Kinetis K82F)

wolfBoot 1.2

(08/01/2019)

  • Added support for multiple architectures
  • key generation and signing tools rewritten in python for portability
  • Added compile-time option to move flash-writing functions to RAM
  • Introduced the possibility for the bootloader to update itself
  • Fixed compile issues on macOS and WSL
  • Hardware support:
    • Added RV32 RISC-V architecture
    • Added hardware-assisted dual-bank support on STM32F76x/77x
    • new HAL: RV32 FE310 (SiFive HiFive-1)
    • new HAL: STM32L0
    • new HAL: STM32G0
    • new HAL: STM32F7
    • new HAL: STM32WB

wolfBoot 1.1

(03/27/2019)

  • Added support for ECC-256 DSA
  • Added support for external (e.g. SPI) flash for Update/swap
  • Anti-rollback protection via version number
  • Hardware support
  • Added compile options for Cortex-M0
  • new HAL: Atmel SamR21
  • new HAL: TI cc26x2
  • new HAL: NXP/Freescale Kinetis SDK
  • Improved sign/update tools compatibility (windows)

wolfBoot 1.0.0

(12/04/2018)

This is the initial release of wolfBoot. Please see the README for more details.