|author||David Benjamin <email@example.com>||Mon Jan 21 07:40:33 2019 +0000|
|committer||Adam Langley <firstname.lastname@example.org>||Tue Jan 22 23:27:34 2019 +0000|
Fix signed left-shifts in curve25519.c. Due to a language flaw in C, left-shifts on signed integers are undefined for negative numbers. This makes them all but useless. Cast to the unsigned type, left-shift, and cast back (casts are defined to wrap) to silence UBSan. Change-Id: I8fbe739aee1c99cf553462b675863e6d68c2b302 Reviewed-on: https://boringssl-review.googlesource.com/c/34446 Reviewed-by: Adam Langley <email@example.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.
There are other files in this directory which might be helpful: