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Adam Langley 54a8d7c14f Use Barrett reduction in CBC processing rather than tricks. 
Division isn't constant-time on Intel chips so the code was adding a
large multiple of md_size to try and force the operation to always take
the maximum amount of time.

I'm less convinced, these days, that compilers aren't going to get smart
enough to optimise that away so use Barrett reduction instead.

Change-Id: Ib8c514192682a2fcb4b1fb7e7c6dd1301d9888d0
Reviewed-on: https://boringssl-review.googlesource.com/6906
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <alangley@gmail.com>
2016-01-27 22:05:01 +00:00
crypto Use Barrett reduction in CBC processing rather than tricks. 2016-01-27 22:05:01 +00:00
decrepit Tweaks for node.js 2016-01-26 23:23:42 +00:00
fuzz Update the fuzz tests for the server. 2015-12-22 16:35:07 -08:00
include/openssl Add functions for accessing read_sequence and write_sequence. 2016-01-27 22:03:57 +00:00
ssl Add functions for accessing read_sequence and write_sequence. 2016-01-27 22:03:57 +00:00
tool Make it possible to tell what curve was used on the server. 2015-12-22 23:12:25 +00:00
util Have doc.go parse struct comments. 2016-01-26 23:23:23 +00:00
.clang-format
.gitignore Fix documentation generation on Windows. 2015-08-19 00:45:42 +00:00
BUILDING.md Make the instructions for downloading the ARM compiler easier to copy and paste. 2015-10-30 20:47:08 +00:00
CMakeLists.txt Enable stronger format string checking |-Wformat=2|. 2016-01-21 21:00:31 +00:00
codereview.settings
FUZZING.md Update and fix fuzzing instructions. 2015-11-10 23:37:36 +00:00
LICENSE Note that some files carry in Intel license. 2015-07-28 00:55:32 +00:00
PORTING.md Update PORTING.md for the new renego API. 2015-10-26 19:27:56 +00:00
README.md Add four, basic fuzz tests. 2015-11-10 19:14:01 +00:00
STYLE.md Update link to Google style guide. 2015-11-03 02:02:12 +00:00

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.

There are other files in this directory which might be helpful:

  • PORTING.md: how to port OpenSSL-using code to BoringSSL.
  • BUILDING.md: how to build BoringSSL
  • STYLE.md: rules and guidelines for coding style.
  • include/openssl: public headers with API documentation in comments. Also available online.
  • FUZZING.md: information about fuzzing BoringSSL.