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opensecura / 3p / lowrisc / opentitan / c001558b51e45f8211b3f917404935eb12954c04
commitc001558b51e45f8211b3f917404935eb12954c04[log] [tgz]
authorPirmin Vogel <vogelpi@lowrisc.org>Wed Feb 19 13:47:03 2020 +0100
committerPirmin Vogel <vogelpi@lowrisc.org>Fri Feb 21 14:23:53 2020 +0100
treeab2b18811626d7c75db28ab54ca5c0832f679caf
parent2ccf0a42f83ae31e0b55c2639db26235585d2e8d [diff]
[aes] Disable padding in crypto (OpenSSL/BoringSSL) interface

By default, padding is enabled in the used EVP functions of
OpenSSL/BoringSSL. Both the sizes of the NIST test data sets we are using
so far and the sizes of our tests are multiples of the block size. No
padding is actually required. However, to make the padding checks in the
EVP decryption functions succeed, workarounds are required.

This commit disables the padding and padding checks in the EVP functions
and removes the corresponding workarounds for the padding checks.

Signed-off-by: Pirmin Vogel <vogelpi@lowrisc.org>
4 files changed
tree: ab2b18811626d7c75db28ab54ca5c0832f679caf
  1. .github/
  2. ci/
  3. doc/
  4. hw/
  5. site/
  6. sw/
  7. test/
  8. util/
  9. .clang-format
  10. .gitignore
  11. .style.yapf
  12. _index.md
  13. apt-requirements.txt
  14. azure-pipelines.yml
  15. CLA
  16. COMMITTERS
  17. CONTRIBUTING.md
  18. LICENSE
  19. meson.build
  20. meson_init.sh
  21. meson_options.txt
  22. python-requirements.txt
  23. README.md
  24. toolchain.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 either access it online or build it locally by following the steps below.

  1. Ensure that you have the required Python modules installed (to be executed in the repository root):
$ sudo apt install curl python3 python3-pip
$ pip3 install --user -r python-requirements.txt
  1. Execute the build script:
$ ./util/build_docs.py --preview

This compiles the documentation into ./build/docs and starts a local server, which allows you to access the documentation at http://127.0.0.1:1313.

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).