Add ML-KEM.

This change implements FIPS 203.

This marks the first use of C++ in libcrypto. If you can't compile C++
in this context, please reach out to boringssl@ and filter out the .cc
files for now.

This also makes marshaling a private key an internal function and,
instead, exposes the seed from the generation process and a function to
calculate a private key from a seed. Seeds are significantly smaller
than NIST's format for private keys and don't require validation.

On an M1 Pro:

Did 22320 Kyber generate + decap operations in 1001900us (22277.7 ops/sec)
Did 39000 Kyber parse + encap operations in 1005523us (38785.8 ops/sec)
Did 22608 ML-KEM-768 generate + decap operations in 1010509us (22372.9 ops/sec)
Did 44000 ML-KEM-768 parse + encap operations in 1013729us (43404.1 ops/sec)
Did 15410 ML-KEM-1024 generate + decap operations in 1011500us (15234.8 ops/sec)
Did 29000 ML-KEM-1024 parse + encap operations in 1003919us (28886.8 ops/sec)

Change-Id: Ib563bd4d45228237b55cedbe7d7fdf0f0221a3cc
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/69928
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
20 files changed
tree: 8796feeb3eabf5a82d2b5eec7896c9b6bd1ac3bd
  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: