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be400aefbc4c83e9aab51e82b8d4b12760653b47
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5 Commits
Author SHA1 Message Date
Tamir Duberstein be400aefbc all: build tags: appengine,!gccgo => purego,gc 
appengine is obsolete and superseded by purego, and gc is a more
precise tag for files that use gc-syntax assembly.

Change-Id: I716f59de772ebeee4adf4d2a432edf300122cef0
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/269920
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
 2020-12-03 16:30:18 +00:00
Michael Munday 5d647ca157 sha3: fix SHA-3 on s390x when using KIMD instruction 
An illegal instruction would occur due to a bug in the way input
slices were rounded down in size to a multiple of the rate for a
given hash type. This would only occur when the Write function
was called with more than ~3KiB of data and the length of the data
was not a multiple of the rate.

Fixes golang/go#36459.

Change-Id: I621ef8d75602bcd59bb44491e17f721050001e6d
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/213857
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2020-01-08 21:55:11 +00:00
Tobias Klauser 71b5226ff7 sha3: add a space before +build in build tag comments 
Add a space before build tag comments so it corresponds to the format
documented at https://golang.org/pkg/go/build/.

Change-Id: Ic29df4660a0968f58f721ec61943c0b277d4aaad
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/193777
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2019-09-07 12:14:10 +00:00
Michael Munday e37aea1ec3 sha3: use x/sys/cpu for s390x feature detection 
Use the recently added CPU feature detection API rather than custom
assembly.

While we are here also make vet happy by renaming params in the asm
file to chain to match the go function declaration.

Change-Id: Ide0171793c9fa5ef6671b394e97a27f2c6e44a9f
Reviewed-on: https://go-review.googlesource.com/c/164381
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2019-02-28 16:14:30 +00:00
Michael Munday dccd99e89d sha3: add optimized implementation for s390x 
Message-security-assist extension 6 adds support for the SHA-3 and
SHAKE algorithms. This CL allows the sha3 package to use these new
features.

name                 old speed     new speed      delta
PermutationFunction  328MB/s ± 0%   385MB/s ± 0%    +17.28%  (p=0.000 n=9+10)
Sha3_512_MTU         108MB/s ± 0%  2011MB/s ± 0%  +1768.56%  (p=0.000 n=10+10)
Sha3_384_MTU         149MB/s ± 0%  2437MB/s ± 0%  +1534.22%  (p=0.000 n=10+10)
Sha3_256_MTU         185MB/s ± 0%  2739MB/s ± 0%  +1379.93%  (p=0.000 n=10+10)
Sha3_224_MTU         195MB/s ± 0%  2782MB/s ± 0%  +1326.05%  (p=0.000 n=10+10)
Shake128_MTU         225MB/s ± 0%  4436MB/s ± 0%  +1873.18%  (p=0.000 n=9+9)
Shake256_MTU         209MB/s ± 0%  4521MB/s ± 0%  +2059.86%  (p=0.000 n=8+10)
Shake256_16x         188MB/s ± 0%  1366MB/s ± 0%   +624.70%  (p=0.000 n=9+10)
Shake256_1MiB        212MB/s ± 0%  5861MB/s ± 0%  +2666.67%  (p=0.000 n=10+10)
Sha3_512_1MiB        116MB/s ± 0%  4328MB/s ± 0%  +3628.33%  (p=0.000 n=10+10)

Change-Id: I8ebc503ca2b9eda2ebb361dffdbfe79dd97e1975
Reviewed-on: https://go-review.googlesource.com/59391
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2018-04-26 18:01:11 +00:00