Switch HRSS inversion algorithm.

This algorithm is much simplier and more obvious than the one from the
HRSS paper. Unfortunately it's not immediately any faster (roughly a
no-op on most platforms, +5% on ARM) but it does allow a bunch of
constant-time rotation code to be deleted.

Since it's simplier, however, it's easier to speed-up a little with
future changes.

Change-Id: Ic0e92c77c44ea9aeb6fe35940af9767084fe5f58
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/39084
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
3 files changed
tree: 61f95376e521444e93951d3e2eee5ad00b2347a0
  1. .github/
  2. crypto/
  3. decrepit/
  4. fuzz/
  5. include/
  6. ssl/
  7. third_party/
  8. tool/
  9. util/
  10. .clang-format
  11. .gitignore
  12. API-CONVENTIONS.md
  13. BREAKING-CHANGES.md
  14. BUILDING.md
  15. CMakeLists.txt
  16. codereview.settings
  17. CONTRIBUTING.md
  18. FUZZING.md
  19. go.mod
  20. INCORPORATING.md
  21. LICENSE
  22. PORTING.md
  23. README.md
  24. sources.cmake
  25. STYLE.md
README.md

BoringSSL

BoringSSL is a fork of OpenSSL that is designed to meet Google's needs.

Although BoringSSL is an open source project, it is not intended for general use, as OpenSSL is. We don't recommend that third parties depend upon it. Doing so is likely to be frustrating because there are no guarantees of API or ABI stability.

Programs ship their own copies of BoringSSL when they use it and we update everything as needed when deciding to make API changes. This allows us to mostly avoid compromises in the name of compatibility. It works for us, but it may not work for you.

BoringSSL arose because Google used OpenSSL for many years in various ways and, over time, built up a large number of patches that were maintained while tracking upstream OpenSSL. As Google's product portfolio became more complex, more copies of OpenSSL sprung up and the effort involved in maintaining all these patches in multiple places was growing steadily.

Currently BoringSSL is the SSL library in Chrome/Chromium, Android (but it's not part of the NDK) and a number of other apps/programs.

Project links:

There are other files in this directory which might be helpful: