Set the minumum TLS version to (D)TLS 1.2 by default

Update-Note: By default, BoringSSL will now disable (D)TLS 1.0 and 1.1,
aligning with RFC 8996 and the behavior of modern browsers. Callers
which leave the minimum version at the default will now change to a
higher minimum version.

Callers which use SSL_CTX_set_proto_version and SSL_set_proto_version
are not affected. If this breaks something and the application needed
the legacy versions after all, call one of those functions with
TLS1_VERSION (or DTLS1_VERSION for DTLS) to restore the old behavior.

Bug: 599
Change-Id: Ic6e2d7a2ac7c190e81bd715b736c20e942f580b5
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/68487
Auto-Submit: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Bob Beck <bbe@google.com>
Reviewed-by: Bob Beck <bbe@google.com>
3 files changed
tree: 36015864bdb27af10e2363d1c5c7b3705ee7f16a
  1. .github/
  2. cmake/
  3. crypto/
  4. decrepit/
  5. fuzz/
  6. gen/
  7. include/
  8. pki/
  9. rust/
  10. ssl/
  11. third_party/
  12. tool/
  13. util/
  14. .bazelignore
  15. .bazelrc
  16. .clang-format
  17. .gitignore
  18. API-CONVENTIONS.md
  19. BREAKING-CHANGES.md
  20. BUILD.bazel
  21. build.json
  22. BUILDING.md
  23. CMakeLists.txt
  24. codereview.settings
  25. CONTRIBUTING.md
  26. FUZZING.md
  27. go.mod
  28. go.sum
  29. INCORPORATING.md
  30. LICENSE
  31. MODULE.bazel
  32. MODULE.bazel.lock
  33. PORTING.md
  34. PrivacyInfo.xcprivacy
  35. README.md
  36. SANDBOXING.md
  37. 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: