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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2021-06-16 20:27:22 +0300 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2021-07-02 23:39:34 +0300 |
| commit | 69fdcb5433236c4fc5d24c1dcc269424a088086c (patch) | |
| tree | 894a566337719e58d409e03c6aa10149050b9ac0 /mpi/Makefile.am | |
| parent | 3f4a59299134c6804c5d29fb3f275ea0e04ac8ac (diff) | |
| download | libgcrypt-69fdcb5433236c4fc5d24c1dcc269424a088086c.tar.gz | |
ec: add zSeries/s390x accelerated scalar multiplication
* cipher/asm-inline-s390x.h (PCC_FUNCTION_*): New.
(pcc_query, pcc_scalar_multiply): New.
* mpi/Makefile.am: Add 'ec-hw-s390x.c'.
* mpi/ec-hw-s390x.c: New.
* mpi/ec-internal.h (_gcry_s390x_ec_hw_mul_point)
(mpi_ec_hw_mul_point): New.
* mpi/ec.c (_gcry_mpi_ec_mul_point): Call 'mpi_ec_hw_mul_point'.
* src/g10lib.h (HWF_S390X_MSA_9): New.
* src/hwf-s390x.c (s390x_features): Add MSA9.
* src/hwfeatures.c (hwflist): Add 's390x-msa-9'.
--
Patch adds ECC scalar multiplication acceleration using
s390x's PCC instruction. Following curves are supported:
- Ed25519
- Ed448
- X25519
- X448
- NIST curves P-256, P-384 and P-521
Benchmark on z15 (5.2Ghz):
Before:
Ed25519 | nanosecs/iter cycles/iter
mult | 389791 2026916
keygen | 572017 2974487
sign | 636603 3310336
verify | 1189097 6183305
=
X25519 | nanosecs/iter cycles/iter
mult | 296805 1543385
=
Ed448 | nanosecs/iter cycles/iter
mult | 1693373 8805541
keygen | 2382473 12388858
sign | 2609562 13569725
verify | 5177606 26923552
=
X448 | nanosecs/iter cycles/iter
mult | 1136178 5908127
=
NIST-P256 | nanosecs/iter cycles/iter
mult | 792620 4121625
keygen | 4627835 24064740
sign | 1528268 7946991
verify | 1678205 8726664
=
NIST-P384 | nanosecs/iter cycles/iter
mult | 1766418 9185373
keygen | 10158485 52824123
sign | 3341172 17374095
verify | 3694750 19212700
=
NIST-P521 | nanosecs/iter cycles/iter
mult | 3172566 16497346
keygen | 18184747 94560683
sign | 6039956 31407771
verify | 6480882 33700588
After:
Ed25519 | nanosecs/iter cycles/iter speed-up
mult | 25913 134746 15x
keygen | 44447 231124 12x
sign | 106928 556028 6x
verify | 164681 856341 7x
=
X25519 | nanosecs/iter cycles/iter speed-up
mult | 17761 92358 16x
=
Ed448 | nanosecs/iter cycles/iter speed-up
mult | 50808 264199 33x
keygen | 68644 356951 34x
sign | 317446 1650720 8x
verify | 457115 2376997 11x
=
X448 | nanosecs/iter cycles/iter speed-up
mult | 35637 185313 31x
=
NIST-P256 | nanosecs/iter cycles/iter speed-up
mult | 30678 159528 25x
keygen | 323722 1683356 14x
sign | 114176 593713 13x
verify | 169901 883487 9x
=
NIST-P384 | nanosecs/iter cycles/iter speed-up
mult | 59966 311822 29x
keygen | 607778 3160445 16x
sign | 209832 1091128 16x
verify | 329506 1713431 11x
=
NIST-P521 | nanosecs/iter cycles/iter speed-up
mult | 98230 510797 32x
keygen | 1131686 5884765 16x
sign | 397777 2068442 15x
verify | 623076 3239998 10x
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'mpi/Makefile.am')
| -rw-r--r-- | mpi/Makefile.am | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mpi/Makefile.am b/mpi/Makefile.am index adb8e6f5..3604f840 100644 --- a/mpi/Makefile.am +++ b/mpi/Makefile.am @@ -175,5 +175,6 @@ libmpi_la_SOURCES = longlong.h \ mpih-mul.c \ mpih-const-time.c \ mpiutil.c \ - ec.c ec-internal.h ec-ed25519.c ec-nist.c ec-inline.h + ec.c ec-internal.h ec-ed25519.c ec-nist.c ec-inline.h \ + ec-hw-s390x.c EXTRA_libmpi_la_SOURCES = asm-common-aarch64.h |