Defer early keys to QUIC clients to after certificate reverification.

On a client using SSL_CTX_set_reverify_on_resume, we currently release
the early data keys before reverification rather than afterwards. This
means the QUIC implementation needs to watch for SSL_do_handshake's
return value before using the keys we've released. It is better to be
robust, so defer releasing the keys in the first place.

To avoid oddities around TCP and QUIC differences, tweak the 0-RTT cert
reverification to not send an alert on error. Sending such an alert
under early data is somewhat questionable given the server may not be
able to read it anyway.

Bug: 303
Change-Id: I42c16f9f046322d0b03cb0b425e11471f2fbe52a
Reviewed-by: Nick Harper <>
Reviewed-by: Steven Valdez <>
Commit-Queue: David Benjamin <>
5 files changed
tree: ffccc007b6d0ad10a4092d0c27bb19644d554dc2
  1. .clang-format
  2. .github/
  3. .gitignore
  7. CMakeLists.txt
  15. codereview.settings
  16. crypto/
  17. decrepit/
  18. fuzz/
  19. go.mod
  20. include/
  21. sources.cmake
  22. ssl/
  23. third_party/
  24. tool/
  25. util/


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: