| commit | 28987cf081a338f3cfaec9ed31f66acf966ea401 | [log] [tgz] |
|---|---|---|
| author | David Benjamin <davidben@google.com> | Thu Apr 09 16:21:19 2020 -0400 |
| committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | Fri Apr 10 15:37:52 2020 +0000 |
| tree | fe1634f479c72cd62b3a6af79690c19e85ee5304 | |
| parent | f9e0cda2d81858d10ceeadb0d21f4026f8602cf7 [diff] |
Add a hash_to_scalar variation of P-521's hash_to_field. DLEQ proofs for PMBTokens need a random oracle over scalars as well as field elements. (Interestingly, draft-irtf-cfrg-voprf-03 section 5.1 does not specify as strong of requirements, but then their reference implementation does rejection sampling, so it's unclear.) Reusing the hash_to_field operation so hash calls use the domain separation tag consistently with other hash-to-curve operations seems prudent, so implement a companion function until the actual construction solidifies. Change-Id: I92d807bfddcca26db690cce0a3da551143c25ff3 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/40646 Reviewed-by: Steven Valdez <svaldez@google.com> Commit-Queue: Steven Valdez <svaldez@google.com>
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: