Commit Graph
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appengine is obsolete and superseded by purego, and gc is a more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 4b2356b1ed poly1305: modify s390x assembly to implement MAC interface
The vector (vx) implementation has been updated to read in the
state and update it - as opposed to being a single shot function.
This has allowed the new MAC interface can be implemented.

For performance reasons s390x uses a larger buffer than the generic
implementation. There is a relatively high fixed cost to read the
state, calculate the key coefficients and serialize the state, so
it makes sense to buffer more blocks before calling it.

For now I've had to remove the faster VMSL implementation. It is
too complex for me to update in time for Go 1.15. At some point
I'd like to revisit it but for now it looks like using the MAC
interface is more of a win than using VMSL.

The benchmarks show considerable improvements when using the MAC
interface. The Sum benchmarks show slowdown due to a combination
of the removal of the VMSL implementation and also the added
overhead from splitting the summation function into multiple parts.

poly1305:

name              old speed      new speed      delta
64                1.33GB/s ± 0%  0.80GB/s ± 1%   -39.51%  (p=0.000 n=16+20)
1K                4.04GB/s ± 0%  2.97GB/s ± 0%   -26.46%  (p=0.000 n=19+19)
2M                5.32GB/s ± 1%  3.63GB/s ± 0%   -31.76%  (p=0.000 n=20+19)
64Unaligned       1.33GB/s ± 0%  0.80GB/s ± 0%   -39.80%  (p=0.000 n=19+18)
1KUnaligned       4.09GB/s ± 1%  2.94GB/s ± 0%   -28.23%  (p=0.000 n=19+18)
2MUnaligned       5.33GB/s ± 1%  3.52GB/s ± 0%   -34.04%  (p=0.000 n=20+19)
Write64           1.03GB/s ± 1%  1.49GB/s ± 1%   +44.34%  (p=0.000 n=20+20)
Write1K           1.21GB/s ± 0%  3.24GB/s ± 0%  +169.02%  (p=0.000 n=20+17)
Write2M           1.24GB/s ± 1%  3.63GB/s ± 0%  +192.36%  (p=0.000 n=20+19)
Write64Unaligned  1.04GB/s ± 1%  1.50GB/s ± 0%   +44.16%  (p=0.000 n=19+14)
Write1KUnaligned  1.21GB/s ± 0%  3.20GB/s ± 0%  +164.55%  (p=0.000 n=20+16)
Write2MUnaligned  1.24GB/s ± 1%  3.51GB/s ± 0%  +183.96%  (p=0.000 n=20+19)

chacha20poly1305 (this vs. using generic MAC interface - post CL 206977):

name         old speed      new speed      delta
Open-64       147MB/s ± 2%   156MB/s ± 1%   +6.15%  (p=0.000 n=20+19)
Seal-64       151MB/s ± 0%   164MB/s ± 1%   +8.86%  (p=0.000 n=19+16)
Open-64-X     104MB/s ± 2%   111MB/s ± 1%   +6.24%  (p=0.000 n=20+20)
Seal-64-X     109MB/s ± 2%   111MB/s ± 1%   +2.11%  (p=0.000 n=20+19)
Open-1350     555MB/s ± 0%   751MB/s ± 1%  +35.19%  (p=0.000 n=20+20)
Seal-1350     557MB/s ± 0%   759MB/s ± 0%  +36.23%  (p=0.000 n=20+20)
Open-1350-X   517MB/s ± 1%   683MB/s ± 1%  +31.97%  (p=0.000 n=20+20)
Seal-1350-X   511MB/s ± 0%   683MB/s ± 0%  +33.77%  (p=0.000 n=18+19)
Open-8192     672MB/s ± 0%  1013MB/s ± 0%  +50.65%  (p=0.000 n=19+19)
Seal-8192     674MB/s ± 0%  1018MB/s ± 0%  +50.98%  (p=0.000 n=18+20)
Open-8192-X   663MB/s ± 0%   979MB/s ± 0%  +47.57%  (p=0.000 n=20+20)
Seal-8192-X   658MB/s ± 0%   985MB/s ± 0%  +49.62%  (p=0.000 n=18+20)

name         old allocs/op  new allocs/op  delta
Open-64          0.00           0.00          ~     (all equal)
Seal-64          0.00           0.00          ~     (all equal)
Open-64-X        0.00           0.00          ~     (all equal)
Seal-64-X        0.00           0.00          ~     (all equal)
Open-1350        0.00           0.00          ~     (all equal)
Seal-1350        0.00           0.00          ~     (all equal)
Open-1350-X      0.00           0.00          ~     (all equal)
Seal-1350-X      0.00           0.00          ~     (all equal)
Open-8192        0.00           0.00          ~     (all equal)
Seal-8192        0.00           0.00          ~     (all equal)
Open-8192-X      0.00           0.00          ~     (all equal)
Seal-8192-X      0.00           0.00          ~     (all equal)

chacha20poly1305 (this vs. using asm Sum interface - pre CL 206977):

name         old speed      new speed      delta
Open-64       144MB/s ± 0%   156MB/s ± 1%    +8.16%  (p=0.000 n=20+19)
Seal-64       150MB/s ± 0%   164MB/s ± 1%    +9.35%  (p=0.000 n=20+16)
Open-64-X     104MB/s ± 1%   111MB/s ± 1%    +6.15%  (p=0.000 n=19+20)
Seal-64-X     109MB/s ± 1%   111MB/s ± 1%    +1.43%  (p=0.000 n=19+19)
Open-1350     702MB/s ± 1%   751MB/s ± 1%    +6.98%  (p=0.000 n=20+20)
Seal-1350     715MB/s ± 0%   759MB/s ± 0%    +6.09%  (p=0.000 n=19+20)
Open-1350-X   642MB/s ± 0%   683MB/s ± 1%    +6.37%  (p=0.000 n=19+20)
Seal-1350-X   639MB/s ± 0%   683MB/s ± 0%    +6.98%  (p=0.000 n=20+19)
Open-8192     994MB/s ± 0%  1013MB/s ± 0%    +1.85%  (p=0.000 n=20+19)
Seal-8192    1.00GB/s ± 0%  1.02GB/s ± 0%    +1.90%  (p=0.000 n=20+20)
Open-8192-X   965MB/s ± 0%   979MB/s ± 0%    +1.43%  (p=0.000 n=19+20)
Seal-8192-X   962MB/s ± 0%   985MB/s ± 0%    +2.39%  (p=0.000 n=20+20)

name         old allocs/op  new allocs/op  delta
Open-64          1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Seal-64          1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Open-64-X        1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Seal-64-X        1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Open-1350        1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Seal-1350        1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Open-1350-X      1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Seal-1350-X      1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Open-8192        1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Seal-8192        1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Open-8192-X      1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)
Seal-8192-X      1.00 ± 0%      0.00       -100.00%  (p=0.000 n=20+20)

Updates golang/go#25219.

Change-Id: Ib491e3a47b6b3ec8bbbe1f41f7bf42ad82f5c249
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/219057
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2020-04-29 18:30:12 +00:00
Filippo Valsorda 2aa609cf4a chacha20,poly1305,chacha20poly1305: set consistent build tags
appengine was only necessary for the legacy system based on Go 1.9, drop
that. Add purego tags instead. Remove redundant architecture tags.

Change-Id: Ib1f65a4837511e63e08c1aa43163a79cfe868e0c
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/215498
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2020-02-21 23:15:18 +00:00
Michael Munday 0091315ad7 poly1305: use x/sys/cpu for s390x feature detection
Use the recently added CPU feature detection API rather than custom
assembly. This will need to be updated to use 'internal/cpu' when
the package is revendored into std.

Change-Id: Ia99c51c7409fe4fabcd88fdf5ff19772c1ca2257
Reviewed-on: https://go-review.googlesource.com/c/164382
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-02-28 16:14:51 +00:00
bill_ofarrell 4eb8c2c8d8 poly1305: add optimized s390x SIMD implementation with VMSL
SIMD implementation based the on the algorithm outlined in:
NEON crypto, Daniel J. Bernstein and Peter Schwabe
https://cryptojedi.org/papers/neoncrypto-20120320.pdf
and as modified for VMSL as described in
Accelerating Poly1305 Cryptographic Message Authentication on the z14
O'Farrell, Gadriwala, et al, CASCON 2017, p48-55
https://ibm.ent.box.com/s/jf9gedj0e9d2vjctfyh186shaztavnht

name		old		new		delta
64		485MB/s		1315 MB/s	+171.58%
1K		607MB/s		4352 MB/s	+616.97%
64Unaligned	485MB/s		1373 MB/s       +183.09%
1KUnaligned	606MB/s		4286 MB/s	+607.26%
2M		607MB/s		5529 MB/s	+810.87%

Change-Id: I31ccc25ced09180d99ea5c9233f0dcdc8666fc98
Reviewed-on: https://go-review.googlesource.com/110297
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Munday <mike.munday@ibm.com>
2018-05-14 22:55:51 +00:00