lowRISC / lowRISC/opentitan

[CHERIoT] Verify the monotonicity of capabilities. That is, that the capability modification instruction cannot increase the capabilities power.

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Dominant language
SystemVerilog
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Description

This issue has no description.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the CHERIoT capability modification instruction and its existing verification coverage. Determine how capability power is represented, then verify that the instruction cannot increase it. Done means the monotonicity property is checked and the verification passes.

Written by the indexing model from the issue text.

Assessment

Domain
embedded-iot, security, testing-qa
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
30/100

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