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review.trustedfirmware.org / mirror / mcuboot / 07a9a0364d0ef63df1579a7c333a3deb30a181d1
commit07a9a0364d0ef63df1579a7c333a3deb30a181d1[log] [tgz]
authorFabio Utzig <utzig@apache.org>Thu Dec 19 10:12:53 2019 -0300
committerFabio Utzig <utzig@utzig.org>Fri Dec 20 14:57:06 2019 -0300
tree1f965432f7cfdbe36f27d39bdfcd1831e9861ea6
parenta36082664ecc6b62ceea10aa617c546491c3093d [diff]
bootutil: avoid save of enc keys in secondary slot

When using swap withouth scratch, if a revert operation is detected there
is a fixup that needs to be done to avoid losing metadata. This fixup
copied metadata from the primary slot to the secondary slot temporarily.

Previously it was also copying the encrypted image keys but this is not
required since a fixup is only run when starting a new swap where the
keys were loaded directly from the images. This also avoids that a
secondary slot in external flash would leak keys (according to our
threat model).

Signed-off-by: Fabio Utzig <utzig@apache.org>
1 file changed
tree: 1f965432f7cfdbe36f27d39bdfcd1831e9861ea6
  1. boot/
  2. ci/
  3. docs/
  4. ext/
  5. ptest/
  6. samples/
  7. scripts/
  8. sim/
  9. testplan/
  10. zephyr/
  11. .gitignore
  12. .gitmodules
  13. .travis.yml
  14. enc-aes128kw.b64
  15. enc-ec256-priv.pem
  16. enc-ec256-pub.pem
  17. enc-rsa2048-priv.pem
  18. enc-rsa2048-pub.pem
  19. LICENSE
  20. NOTICE
  21. project.yml
  22. README.md
  23. repository.yml
  24. root-ec-p256-pkcs8.pem
  25. root-ec-p256.pem
  26. root-ed25519.pem
  27. root-rsa-2048.pem
  28. root-rsa-3072.pem
  29. version.yml
README.md

mcuboot

Coverity Scan Build Status Build/Test

This is mcuboot version 1.4.0

MCUboot is a secure bootloader for 32-bit MCUs. The goal of MCUboot is to define a common infrastructure for the bootloader, system flash layout on microcontroller systems, and to provide a secure bootloader that enables simple software upgrades.

MCUboot is operating system and hardware independent and relies on hardware porting layers from the operating. Currently, mcuboot works with both the Apache Mynewt and Zephyr operating systems, but more ports are planned in the future. RIOT is currently supported as a boot target with a complete port planned.

Using MCUboot

Instructions for different operating systems can be found here:

Roadmap

The issues being planned and worked on are tracked using GitHub issues. To participate please visit:

MCUBoot GitHub Issues

Issues were previously tracked on MCUboot JIRA , but it is now deprecated.

Browsing

Information and documentation on the bootloader are stored within the source.

It was previously also documented on confluence: MCUBoot Confluence however, it is now deprecated and not currently maintained

For more information in the source, here are some pointers:

  • boot/bootutil: The core of the bootloader itself.
  • boot/boot_serial: Support for serial upgrade within the bootloader itself.
  • boot/zephyr: Port of the bootloader to Zephyr
  • boot/mynewt: Mynewt bootloader app
  • imgtool: A tool to securely sign firmware images for booting by mcuboot.
  • sim: A bootloader simulator for testing and regression

Joining

Developers welcome!