Comments (1)
Capturing the results of our discussion yesterday:
Highest priority among the tests to be added for TVLA are:
- AES general and byte-based
- Stepping
- Filtering, not just starting from histograms
Furthermore, we should add tests that compare the actual numerical values (e.g., by comparing the t-test trace against expected data).
Test data should always be accompanied by a shell script containing the commands used to capture/generate the data. The primary purpose of that script is to make test data reproducible. This is required because some test data will have to be updated as we change the behavior of the capture and/or analysis code. If manual interaction with hardware peripherals is required to produce test data, the script does not have to be executable from start to beginning; rather, it should contain comments so that an engineer knows when and how to manually interact with hardware between running commands.
For some tests, it could be beneficial to generate minimal, artificial traces to be able to quickly pinpoint bugs. For example, one problem with real traces is that you cannot always know at which exact clock cycle leakage is expected.
Finally, we should work with compressed test data to save LFS space and bandwidth. Note that np.savez()
creates uncompressed .npz
archives; use np.savez_compressed()
to create zipfile.ZIP_DEFLATED
.npz
archives.
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Related Issues (20)
- [scope] Fix WaveRunner sampling rate configuration
- Fix path imports
- [uJSON] Delay between commands
- [uJSON] Single uJSON binary
- [ci] Extend CW305 CI tests
- Port CECA script to new Trace DB
- [capture] CW databases broken HOT 4
- [capture] Re-add range / saturation checks for Husky HOT 2
- [capture] Auto-compute number of segments for Husky
- [tvla] aes-specific plotting function broken
- [capture] AES masking off feature is not working properly
- [ci] SHA3 captures seem to be broken/flaky in CI HOT 2
- [tvla] Loading `ttest_step_file` for replotting figures is broken
- [ci] Add more TVLA tests HOT 1
- [db] Trace DB performance improvement
- [scope] CW-Husky USB blocked after power-up HOT 2
- Streamline TODO comments
- Use earlgrey_es_sival opentitan branch
- Print plot crashes when printing single trace
- Generating English Breakfast Binaries for CW305 HOT 1
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