Andreas Auernhammer cd11541cdf curve25519: improve cswap
Simplify the constant swap function.

On amd64: Replace the CMOVQEQ scheme with SSE2 code similar to the non-amd64 code.
On non-amd64: Avoid unnecessary loop iterations.

The result is less and slightly faster code.

name 			old time/op 	new time/op 	delta
ScalarBaseMult-4   	653µs ± 0%   	636µs ± 0%   	~     (p=0.100 n=3+3)

name 			old time/op 	new time/op 	delta
ConstantSwap-4  	10.4ns ± 1%   	6.2ns ± 0%  	-39.86%  (p=0.029 n=4+4)

On an i7-65000U

Change-Id: Ia5eea92e0b3eabb6c291d25229aa582b51278552
Reviewed-on: https://go-review.googlesource.com/39693
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-04-13 00:59:54 +00:00
2017-04-12 07:03:28 +00:00
2014-12-09 23:26:36 +00:00
2017-04-07 17:36:45 +00:00
2017-04-07 17:36:45 +00:00
2016-12-06 19:59:59 +00:00
2014-12-09 23:26:36 +00:00
2017-04-07 17:36:45 +00:00
2017-04-13 00:59:54 +00:00
2016-04-25 23:11:06 +00:00
2014-12-09 23:26:36 +00:00
2014-12-09 23:26:36 +00:00
2017-02-09 19:00:49 +00:00
2017-01-04 23:09:04 +00:00
2017-01-18 18:54:26 +00:00
2014-12-09 23:26:36 +00:00
2017-02-09 23:39:01 +00:00
2014-12-09 23:26:36 +00:00
2016-10-21 19:51:19 +00:00
2014-12-09 23:26:36 +00:00
2014-12-09 23:26:36 +00:00
2014-12-09 23:26:36 +00:00
2014-12-08 10:41:13 +11:00
2015-03-18 17:04:25 +00:00
2015-02-18 23:42:20 +00:00
2012-03-17 15:19:30 +11:00
2012-01-25 15:31:12 -05:00

This repository holds supplementary Go cryptography libraries.

To submit changes to this repository, see http://golang.org/doc/contribute.html.
S
Description
Mirror of ys-ll/crypto (GitHub), kept for paraterm builds
https://golang.org/x/crypto
Readme BSD-3-Clause
8.1 MiB
Languages
Go 88.6%
Assembly 11.1%
C 0.3%