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10 Commits
Author SHA1 Message Date
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
Andreas Auernhammer 537c9dfe43 poly1305: simplify reference implementation 
Reduce code complexity by replacing the floating-point implementation
with a 32-bit implementation.

Moreover this improves the performance on 386:

name 		old time/op 	new time/op 	delta
64-2 		972ns ± 2% 	350ns ± 1% 	-64.04% (p=0.029 n=4+4)
1K-2 		10.9µs ± 3% 	4.2µs ± 1% 	-61.11% (p=0.029 n=4+4)
64Unaligned-2	969ns ± 2% 	354ns ± 2% 	-63.44% (p=0.029 n=4+4)
1KUnaligned-2 	10.8µs ± 3% 	4.2µs ± 1% 	-61.15% (p=0.029 n=4+4)

name 		old speed 	new speed 	delta
64-2 		65.8MB/s ± 2% 	182.9MB/s ± 1% 	+177.93% (p=0.029 n=4+4)
1K-2 		94.3MB/s ± 3% 	242.3MB/s ± 1% 	+157.08% (p=0.029 n=4+4)
64Unaligned-2 	66.0MB/s ± 2% 	180.4MB/s ± 2% 	+173.32% (p=0.029 n=4+4)
1KUnaligned-2  	94.4MB/s ± 3%  	243.0MB/s ± 1% 	+157.36% (p=0.029 n=4+4)

There are already optimized versions for amd64 and arm,
and a optimized version for s390x seems to be planned.
	See: https://go-review.googlesource.com/#/c/32812/

Change-Id: I7a5ac62ae33727b0e6060cb966de73a468317e30
Reviewed-on: https://go-review.googlesource.com/35294
Reviewed-by: Michael Munday <munday@ca.ibm.com>
Reviewed-by: Adam Langley <agl@golang.org>
 2017-02-08 20:50:45 +00:00
Adam Langley 3ded668c53 poly1305: enable assembly for ARM in Go 1.6. 
5f31782cfb added build constraints to
disable assembly for Go 1.6 but didn't add the needed tags to the ARM
files. Also, it's not clear that was needed as the error given in
golang/go#17424 only complains about the chacha20poly1305 package.

This change reenables the assembly for Go 1.6 in the poly1305 package.
Tested with 1.6.3 and 1.5.4.

Fixes golang/go#17512.

Change-Id: I81b41f8810437ea327b415542402cd8ff5c8a390
Reviewed-on: https://go-review.googlesource.com/31492
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2016-10-20 16:32:05 +00:00
Adam Langley cdcb58c6ca poly1305: fix NaCl build. 
The ARM assembly doesn't work for NaCl on ARM because it doesn't meet
the required rules. This change disables it on ARM and also fixes the
issue that the build constraints in sum_arm.s would be ignored because
they came after the #include.

Change-Id: I6cb3815ec62ac4686a6e72f405af104293586bb6
Reviewed-on: https://go-review.googlesource.com/31264
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2016-10-17 20:27:05 +00:00
Brad Fitzpatrick 5f31782cfb poly1305, chacha20poly1305: fix build for Go 1.6 
Fixes golang/go#17424

Change-Id: I49d6e475c173da6a31542931d555ab87cc45a1c6
Reviewed-on: https://go-review.googlesource.com/30971
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
 2016-10-12 22:20:46 +00:00
Jungho Ahn 4d48e5fa3d x/crypto/poly1305: add ARM assembly 
This change adds ARMv6 assembly implementation. The referenced assembly code was
  the public domain source by Andrew Moon in https://github.com/floodyberry/poly1305-opt/blob/master/app/extensions/poly1305/poly1305_armv6-32.inc.
  The author has confirmed that it's ok to put it under the Go license.

  Benchmark results on Raspberry Pi (ARMv6-compatible processor rev 7),
   o Without ARMv6 assembly
     Benchmark1K      5000      287177 ns/op     3.57 MB/s
     Benchmark64     50000       38880 ns/op     1.65 MB/s

   o With ARMv6 assembly
     Benchmark1K    100000       15964 ns/op    64.14 MB/s
     Benchmark64   1000000        1472 ns/op    43.46 MB/s

Change-Id: Iea5b0b831ac097cc6d477a8fccbf0ddb4819724c
Reviewed-on: https://go-review.googlesource.com/9765
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
 2015-05-14 21:10:51 +00:00
Marga Manterola c57d4a7191 poly1305, curve25519: add build constraints for appengine 
Updates: golang/go#9845

Change-Id: I78ce460d2a188ee13dd3f80015919a14eba03d07
Reviewed-on: https://go-review.googlesource.com/8100
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2015-03-27 05:11:19 +00:00
Ian Lance Taylor 6779fad1d0 go.crypto: add and adjust +build lines for 386 and gccgo 
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6827061
 2012-11-07 22:50:39 -08:00
Adam Langley 9c0a3ae199 go.crypto/poly1305: enable AMD64 assembly 
This change alters the assembly to use FSUBD instructions such that
6l will actually emit the correct FSUBRD instructions and enables
the assembly code.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6514044
 2012-09-14 17:00:38 -04:00
Adam Langley 6814ed3bb5 go.crypto/poly1305: add package. 
(Reference implementation by dchest. amd64 disabled pending 6l fix.)

R=golang-dev, dchest
CC=golang-dev
https://golang.org/cl/6494105
 2012-09-08 14:24:19 -04:00