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opensecura / 3p / lowrisc / opentitan / cf6875f7a6e6ac114d0001679ce3c74e082b62cf
commitcf6875f7a6e6ac114d0001679ce3c74e082b62cf[log] [tgz]
authorUdi Jonnalagadda <udij@google.com>Thu Apr 29 13:12:06 2021 -0700
committerudinator <udij@google.com>Thu Apr 29 23:27:50 2021 -0700
treed11eee80341259846739e54fbf0a76aec2d48ac9
parentcd27b338eb7952e38862b391d775526528db215f [diff]
[dv/kmac] enable fast_entropy

this PR enables randomly setting fast_entropy in all KMAC tests.

some notes:

- all KMAC entropy settings only apply to the masked configuration
- fast entropy only changes the timing of tthe keccak rounds itself,
  and doesn't impact the rest of the timing model.
  fast entropy allows KMAC to not have to re-generate full entropy for
  every round of keccak, reducing the cycle count of each keccak round
  from 7 to 3 cycles.
  the major exception is when we are processing the secret keys, in
  which we continue to generate entropy on each round for security
  reasons.

Signed-off-by: Udi Jonnalagadda <udij@google.com>
3 files changed
tree: d11eee80341259846739e54fbf0a76aec2d48ac9
  1. .github/
  2. ci/
  3. doc/
  4. hw/
  5. site/
  6. sw/
  7. test/
  8. util/
  9. .clang-format
  10. .dockerignore
  11. .flake8
  12. .gitignore
  13. .style.yapf
  14. .svlint.toml
  15. .svls.toml
  16. _index.md
  17. apt-requirements.txt
  18. azure-pipelines.yml
  19. check_tool_requirements.core
  20. CLA
  21. COMMITTERS
  22. CONTRIBUTING.md
  23. LICENSE
  24. meson.build
  25. meson_init.sh
  26. meson_options.txt
  27. python-requirements.txt
  28. README.md
  29. tool_requirements.py
  30. toolchain.txt
  31. topgen-generator.core
  32. topgen-reg-only.core
  33. topgen.core
  34. yum-requirements.txt
README.md

OpenTitan

OpenTitan logo

About the project

OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.

About this repository

This repository contains hardware, software and utilities written as part of the OpenTitan project. It is structured as monolithic repository, or “monorepo”, where all components live in one repository. It exists to enable collaboration across partners participating in the OpenTitan project.

Documentation

The project contains comprehensive documentation of all IPs and tools. You can access it online at docs.opentitan.org.

How to contribute

Have a look at CONTRIBUTING for guidelines on how to contribute code to this repository.

Licensing

Unless otherwise noted, everything in this repository is covered by the Apache License, Version 2.0 (see LICENSE for full text).