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5 Commits
Author SHA1 Message Date
Adam Langley 7efbae5d10 x/crypto/blake2b: SSE4.1 is bit 19, not 15. 
I missed this in the initial review but this will cause blake2b to
SIGILL on, at least, some Atom chips.

Fixes golang/go#18113.

Change-Id: I0c16319df71f3ce4a38411ad4c4e9d3871fd9533
Reviewed-on: https://go-review.googlesource.com/33830
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2016-12-01 19:22:57 +00:00
Austin Clements 8291fff38a blake2b: test all three hashing implementations 
This adds use* flags for all arches so a common test can observe what
implementations are supported and test all supported implementations.

Change-Id: I0497b91294ed99309074ac4614ac996e006630c5
Reviewed-on: https://go-review.googlesource.com/31714
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Andreas Auernhammer <aead@mail.de>
 2016-10-24 19:19:48 +00:00
Austin Clements e67f5eca87 blake2b: use proper Go frame sizes 
Similar to the previous commit, blake2b's assembly routines claim they
have a zero byte frame and manually subtract a frame from the SP,
which can fail to grow the stack when necessary, leading to memory
corruption.

Fix this by using the correct stack frame sizes so the generated stack
growth prologue is correct, and aligning the SP up instead of down.

Change-Id: Ic426338c45c94a2c01d549860c2295a0ee9200be
Reviewed-on: https://go-review.googlesource.com/31585
Reviewed-by: Adam Langley <agl@golang.org>
Reviewed-by: Andreas Auernhammer <aead@mail.de>
 2016-10-21 19:51:14 +00:00
Andreas Auernhammer c367d6eeb7 blake2s,blake2b: fix typo in package doc 
Change-Id: I6c33e69dc3e45d86843861973952d6f11c0fae88
Reviewed-on: https://go-review.googlesource.com/31397
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2016-10-19 07:14:13 +00:00
Andreas Auernhammer 9e9c7d4ed3 blake2b: new package 
Add the hash function BLAKE2b defined in RFC 7693.

On amd64/AVX2
name 		time/op
Write128-4 	164ns ± 1%
Write1K-4 	1.19µs ± 2%
Sum128-4 	187ns ± 1%
Sum1K-4 	1.21µs ± 1%

name 		speed
Write128-4 	800MB/s ± 1%
Write1K-4 	856MB/s ± 2%
Sum128-4 	682MB/s ± 1%
Sum1K-4     	842MB/s ± 1%

On amd64/SSE4
name 		time/op
Write128-4 	192ns ± 1%
Write1K-4 	1.37µs ± 0%
Sum128-4 	215ns ± 1%
Sum1K-4 	1.39µs ± 1%

name 		speed
Write128-4 	665MB/s ± 1%
Write1K-4 	746MB/s ± 0%
Sum128-4 	592MB/s ± 1%
Sum1K-4 	735MB/s ± 1%

Change-Id: I0b41ae136980b0e8a970be330e8cc5f02b9e6818
Reviewed-on: https://go-review.googlesource.com/30918
Reviewed-by: Adam Langley <agl@golang.org>
 2016-10-18 17:05:21 +00:00