Remove proxy certificate support.

Nothing uses this, and the code is somewhat decrepit. Instead of
fixing it and continuing to maintain it as attack surface, we
send this off to the farm where it can run and play all day with
the other unused X.509 extensions.

Update-note: This removes the proxy certificate extension from
the recognized certificate extensions. Previously by default
a certificate with a critical proxy certificate extension would
have been rejected with "proxy certificate not allowed", but
will now be rejected with an unrecognized critical extension
error.

Fixed: 568
Change-Id: I5f838d69c59517254b4fa83f6e2abe6057fa66c7
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/57265
Commit-Queue: Bob Beck <bbe@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Auto-Submit: Bob Beck <bbe@google.com>
9 files changed
tree: 4d3901f4b826ea18479e00638ba2ee31b23b5af2
  1. .github/
  2. cmake/
  3. crypto/
  4. decrepit/
  5. fuzz/
  6. include/
  7. rust/
  8. ssl/
  9. third_party/
  10. tool/
  11. util/
  12. .clang-format
  13. .gitignore
  14. API-CONVENTIONS.md
  15. BREAKING-CHANGES.md
  16. BUILDING.md
  17. CMakeLists.txt
  18. codereview.settings
  19. CONTRIBUTING.md
  20. FUZZING.md
  21. go.mod
  22. go.sum
  23. INCORPORATING.md
  24. LICENSE
  25. PORTING.md
  26. README.md
  27. SANDBOXING.md
  28. sources.cmake
  29. 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: