Raw Public Keys: Configure cert types accepted from the server

To indicate support for Raw Public Keys (RFC 7250), the client may list
cert type(s) accepted from the server (the options are RawPublicKey or
X.509) in the ClientHello, and the server may list a client cert type
accepted from the client in the ServerHello.

This CL adds API functions to configure the cert types that the caller
wishes to accept from the peer (whether the caller is client or server),
and implements the client's sending of the accepted types in
server_certificate_type in the ClientHello. (The client_certificate_type
extension in the ServerHello, which is also derived from the accepted
types on the server side, is implemented later.)

Bug: 467663225
Change-Id: I6042fa9a03eb395d85f9c92fd766e2836a6a6964
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/89827
Commit-Queue: Lily Chen <chlily@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
16 files changed
tree: 2af6662ba3bf2422da87cad8031b7a24622da3df
  1. .bcr/
  2. .github/
  3. bench/
  4. cmake/
  5. crypto/
  6. decrepit/
  7. docs/
  8. fuzz/
  9. gen/
  10. include/
  11. infra/
  12. pki/
  13. rust/
  14. ssl/
  15. third_party/
  16. tool/
  17. util/
  18. .bazelignore
  19. .bazelrc
  20. .bazelversion
  21. .clang-format
  22. .clang-format-ignore
  23. .gitignore
  24. API-CONVENTIONS.md
  25. AUTHORS
  26. BREAKING-CHANGES.md
  27. BUILD.bazel
  28. build.json
  29. BUILDING.md
  30. CMakeLists.txt
  31. codereview.settings
  32. CONTRIBUTING.md
  33. FUZZING.md
  34. go.mod
  35. go.sum
  36. INCORPORATING.md
  37. LICENSE
  38. MODULE.bazel
  39. MODULE.bazel.lock
  40. PORTING.md
  41. PRESUBMIT.py
  42. PrivacyInfo.xcprivacy
  43. README.md
  44. SANDBOXING.md
  45. SECURITY.md
  46. 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:

To file a security issue, use the Chromium process and mention in the report this is for BoringSSL. You can ignore the parts of the process that are specific to Chromium/Chrome.

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