SPI flash BP3-0 bits are not set
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Nobody has claimed this yet.
enhancement / improvement
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Description
Once the bootblock is more stabilized, the BP3-0 bits should be set to avoid overwriting it and prevent the root of trust from being subverted by a software attack on the flash chip.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No file, test, or entry point is named in the issue. Start by locating the SPI flash protection setup and the bootblock initialization path; done means the BP3-0 bits are set after bootblock stabilization so the bootblock cannot be overwritten by software.
Written by the indexing model from the issue text.
Assessment
- Domain
- embedded-iot, security
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100