Keep EVP_CIPHER/EVP_MD lookup and do_all functions in sync

Node seems uncommonly sensitive to this, so let's write these functions
in a way that stays in sync and test this. See also

This does incur a cost across all BoringSSL consumers that use these
functions: as a result of Node indiscriminately exposing every cipher,
we end up pulling more and more ciphers into these getters. But that
ship sailed long ago, so, instead, document that EVP_get_cipherby*
should not be used by size-conscious callers.

EVP_get_digestby* probably should have the same warning, but I've left
it alone for now because we don't quite have the same proliferation of
digests as ciphers. (Though there are things in there, like MD4, that
ought to be better disconnected.)

Change-Id: I61ca406c146279bd05a52bed6c57200d1619c5da
Reviewed-by: Adam Langley <>
Commit-Queue: Adam Langley <>
5 files changed
tree: a41a5be6d68a84d0e235eb962dc8615ffb67799a
  1. .clang-format
  2. .github/
  3. .gitignore
  7. CMakeLists.txt
  16. codereview.settings
  17. crypto/
  18. decrepit/
  19. fuzz/
  20. go.mod
  21. go.sum
  22. include/
  23. sources.cmake
  24. ssl/
  25. third_party/
  26. tool/
  27. 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: