From 31ed9a21315c571db443c68e4f618ecb51c631f9 Mon Sep 17 00:00:00 2001 From: Andy Polyakov Date: Tue, 3 Dec 2013 22:05:17 +0100 Subject: [PATCH] crypto/bn/rsaz*: fix licensing note. rsaz_exp.c: harmonize line terminating; asm/rsaz-*.pl: minor optimizations. --- crypto/bn/asm/rsaz-avx2.pl | 215 ++++++------ crypto/bn/asm/rsaz-x86_64.pl | 120 ++++--- crypto/bn/rsaz_exp.c | 624 ++++++++++++++++++----------------- 3 files changed, 500 insertions(+), 459 deletions(-) diff --git a/crypto/bn/asm/rsaz-avx2.pl b/crypto/bn/asm/rsaz-avx2.pl index 09c45b0ec2..3eb95569fb 100755 --- a/crypto/bn/asm/rsaz-avx2.pl +++ b/crypto/bn/asm/rsaz-avx2.pl @@ -1,54 +1,66 @@ #!/usr/bin/env perl -#****************************************************************************** -#* Copyright(c) 2012, Intel Corp. -#* Developers and authors: -#* Shay Gueron (1, 2), and Vlad Krasnov (1) -#* (1) Intel Corporation, Israel Development Center, Haifa, Israel -#* (2) University of Haifa, Israel -#****************************************************************************** -#* LICENSE: -#* This submission to OpenSSL is to be made available under the OpenSSL -#* license, and only to the OpenSSL project, in order to allow integration -#* into the publicly distributed code. -#* The use of this code, or portions of this code, or concepts embedded in -#* this code, or modification of this code and/or algorithm(s) in it, or the -#* use of this code for any other purpose than stated above, requires special -#* licensing. -#****************************************************************************** -#* DISCLAIMER: -#* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AND THE COPYRIGHT OWNERS -#* ``AS IS''. ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED -#* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -#* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS OR THE COPYRIGHT -#* OWNERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, -#* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -#* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -#* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -#* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -#* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -#* POSSIBILITY OF SUCH DAMAGE. -#****************************************************************************** -#* Reference: -#* [1] S. Gueron, V. Krasnov: "Software Implementation of Modular -#* Exponentiation, Using Advanced Vector Instructions Architectures", -#* F. Ozbudak and F. Rodriguez-Henriquez (Eds.): WAIFI 2012, LNCS 7369, -#* pp. 119?135, 2012. Springer-Verlag Berlin Heidelberg 2012 -#* [2] S. Gueron: "Efficient Software Implementations of Modular -#* Exponentiation", Journal of Cryptographic Engineering 2:31-43 (2012). -#* [3] S. Gueron, V. Krasnov: "Speeding up Big-numbers Squaring",IEEE -#* Proceedings of 9th International Conference on Information Technology: -#* New Generations (ITNG 2012), pp.821-823 (2012) -#* [4] S. Gueron, V. Krasnov: "[PATCH] Efficient and side channel analysis -#* resistant 1024-bit modular exponentiation, for optimizing RSA2048 -#* on AVX2 capable x86_64 platforms", -#* http://rt.openssl.org/Ticket/Display.html?id=2850&user=guest&pass=guest -#****************************************************************************** - -# +10% improvement by +############################################################################## +# # +# Copyright (c) 2012, Intel Corporation # +# # +# All rights reserved. # +# # +# Redistribution and use in source and binary forms, with or without # +# modification, are permitted provided that the following conditions are # +# met: # +# # +# * Redistributions of source code must retain the above copyright # +# notice, this list of conditions and the following disclaimer. # +# # +# * Redistributions in binary form must reproduce the above copyright # +# notice, this list of conditions and the following disclaimer in the # +# documentation and/or other materials provided with the # +# distribution. # +# # +# * Neither the name of the Intel Corporation nor the names of its # +# contributors may be used to endorse or promote products derived from # +# this software without specific prior written permission. # +# # +# # +# THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY # +# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR # +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, # +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, # +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR # +# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF # +# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING # +# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS # +# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # +# # +############################################################################## +# Developers and authors: # +# Shay Gueron (1, 2), and Vlad Krasnov (1) # +# (1) Intel Corporation, Israel Development Center, Haifa, Israel # +# (2) University of Haifa, Israel # +############################################################################## +# Reference: # +# [1] S. Gueron, V. Krasnov: "Software Implementation of Modular # +# Exponentiation, Using Advanced Vector Instructions Architectures", # +# F. Ozbudak and F. Rodriguez-Henriquez (Eds.): WAIFI 2012, LNCS 7369, # +# pp. 119?135, 2012. Springer-Verlag Berlin Heidelberg 2012 # +# [2] S. Gueron: "Efficient Software Implementations of Modular # +# Exponentiation", Journal of Cryptographic Engineering 2:31-43 (2012). # +# [3] S. Gueron, V. Krasnov: "Speeding up Big-numbers Squaring",IEEE # +# Proceedings of 9th International Conference on Information Technology: # +# New Generations (ITNG 2012), pp.821-823 (2012) # +# [4] S. Gueron, V. Krasnov: "[PATCH] Efficient and side channel analysis # +# resistant 1024-bit modular exponentiation, for optimizing RSA2048 # +# on AVX2 capable x86_64 platforms", # +# http://rt.openssl.org/Ticket/Display.html?id=2850&user=guest&pass=guest# +############################################################################## +# +# +13% improvement over original submission by # # rsa2048 sign/sec OpenSSL 1.0.1 scalar(*) this -# 2.3GHz Haswell 621 732/+18% 1112/+79% +# 2.3GHz Haswell 621 765/+23% 1113/+79% # # (*) if system doesn't support AVX2, for reference purposes; @@ -143,24 +155,24 @@ rsaz_1024_sqr_avx2: # 702 cycles, 14% faster than rsaz_1024_mul_avx2 push %r13 push %r14 push %r15 + vzeroupper ___ $code.=<<___ if ($win64); lea -0xa8(%rsp),%rsp - movaps %xmm6,-0xd8(%rax) - movaps %xmm7,-0xc8(%rax) - movaps %xmm8,-0xb8(%rax) - movaps %xmm9,-0xa8(%rax) - movaps %xmm10,-0x98(%rax) - movaps %xmm11,-0x88(%rax) - movaps %xmm12,-0x78(%rax) - movaps %xmm13,-0x68(%rax) - movaps %xmm14,-0x58(%rax) - movaps %xmm15,-0x48(%rax) + vmovaps %xmm6,-0xd8(%rax) + vmovaps %xmm7,-0xc8(%rax) + vmovaps %xmm8,-0xb8(%rax) + vmovaps %xmm9,-0xa8(%rax) + vmovaps %xmm10,-0x98(%rax) + vmovaps %xmm11,-0x88(%rax) + vmovaps %xmm12,-0x78(%rax) + vmovaps %xmm13,-0x68(%rax) + vmovaps %xmm14,-0x58(%rax) + vmovaps %xmm15,-0x48(%rax) .Lsqr_1024_body: ___ $code.=<<___; mov %rax,%rbp - vzeroall mov %rdx, $np # reassigned argument sub \$$FrameSize, %rsp mov $np, $tmp @@ -171,6 +183,7 @@ $code.=<<___; and \$4095, $tmp # see if $np crosses page add \$32*10, $tmp shr \$12, $tmp + vpxor $ACC9,$ACC9,$ACC9 jz .Lsqr_1024_no_n_copy # unaligned 256-bit load that crosses page boundary can @@ -198,7 +211,7 @@ $code.=<<___; vmovdqu $ACC6, 32*6-128($np) vmovdqu $ACC7, 32*7-128($np) vmovdqu $ACC8, 32*8-128($np) - vmovdqu $ACC9, 32*9-128($np) # $ACC9 is zero after vzeroall + vmovdqu $ACC9, 32*9-128($np) # $ACC9 is zero .Lsqr_1024_no_n_copy: and \$-1024, %rsp @@ -876,17 +889,18 @@ rsaz_1024_mul_avx2: push %r15 ___ $code.=<<___ if ($win64); + vzeroupper lea -0xa8(%rsp),%rsp - movaps %xmm6,-0xd8(%rax) - movaps %xmm7,-0xc8(%rax) - movaps %xmm8,-0xb8(%rax) - movaps %xmm9,-0xa8(%rax) - movaps %xmm10,-0x98(%rax) - movaps %xmm11,-0x88(%rax) - movaps %xmm12,-0x78(%rax) - movaps %xmm13,-0x68(%rax) - movaps %xmm14,-0x58(%rax) - movaps %xmm15,-0x48(%rax) + vmovaps %xmm6,-0xd8(%rax) + vmovaps %xmm7,-0xc8(%rax) + vmovaps %xmm8,-0xb8(%rax) + vmovaps %xmm9,-0xa8(%rax) + vmovaps %xmm10,-0x98(%rax) + vmovaps %xmm11,-0x88(%rax) + vmovaps %xmm12,-0x78(%rax) + vmovaps %xmm13,-0x68(%rax) + vmovaps %xmm14,-0x58(%rax) + vmovaps %xmm15,-0x48(%rax) .Lmul_1024_body: ___ $code.=<<___; @@ -900,6 +914,7 @@ $code.=<<___; # cross page boundary, swap it with $bp [meaning that caller # is advised to lay down $ap and $bp next to each other, so # that only one can cross page boundary]. + .byte 0x67,0x67 mov $ap, $tmp and \$4095, $tmp add \$32*10, $tmp @@ -915,6 +930,7 @@ $code.=<<___; and \$4095, $tmp # see if $np crosses page add \$32*10, $tmp + .byte 0x67,0x67 shr \$12, $tmp jz .Lmul_1024_no_n_copy @@ -960,6 +976,7 @@ $code.=<<___; vpbroadcastq ($bp), $Bi vmovdqu $ACC0, (%rsp) # clear top of stack xor $r0, $r0 + .byte 0x67 xor $r1, $r1 xor $r2, $r2 xor $r3, $r3 @@ -1564,22 +1581,22 @@ rsaz_1024_gather5_avx2: ___ $code.=<<___ if ($win64); lea -0x88(%rsp),%rax + vzeroupper .LSEH_begin_rsaz_1024_gather5: # I can't trust assembler to use specific encoding:-( .byte 0x48,0x8d,0x60,0xe0 #lea -0x20(%rax),%rsp - .byte 0x0f,0x29,0x70,0xe0 #movaps %xmm6,-0x20(%rax) - .byte 0x0f,0x29,0x78,0xf0 #movaps %xmm7,-0x10(%rax) - .byte 0x44,0x0f,0x29,0x00 #movaps %xmm8,0(%rax) - .byte 0x44,0x0f,0x29,0x48,0x10 #movaps %xmm9,0x10(%rax) - .byte 0x44,0x0f,0x29,0x50,0x20 #movaps %xmm10,0x20(%rax) - .byte 0x44,0x0f,0x29,0x58,0x30 #movaps %xmm11,0x30(%rax) - .byte 0x44,0x0f,0x29,0x60,0x40 #movaps %xmm12,0x40(%rax) - .byte 0x44,0x0f,0x29,0x68,0x50 #movaps %xmm13,0x50(%rax) - .byte 0x44,0x0f,0x29,0x70,0x60 #movaps %xmm14,0x60(%rax) - .byte 0x44,0x0f,0x29,0x78,0x70 #movaps %xmm15,0x70(%rax) + .byte 0xc5,0xf8,0x29,0x70,0xe0 #vmovaps %xmm6,-0x20(%rax) + .byte 0xc5,0xf8,0x29,0x78,0xf0 #vmovaps %xmm7,-0x10(%rax) + .byte 0xc5,0x78,0x29,0x40,0x00 #vmovaps %xmm8,0(%rax) + .byte 0xc5,0x78,0x29,0x48,0x10 #vmovaps %xmm9,0x10(%rax) + .byte 0xc5,0x78,0x29,0x50,0x20 #vmovaps %xmm10,0x20(%rax) + .byte 0xc5,0x78,0x29,0x58,0x30 #vmovaps %xmm11,0x30(%rax) + .byte 0xc5,0x78,0x29,0x60,0x40 #vmovaps %xmm12,0x40(%rax) + .byte 0xc5,0x78,0x29,0x68,0x50 #vmovaps %xmm13,0x50(%rax) + .byte 0xc5,0x78,0x29,0x70,0x60 #vmovaps %xmm14,0x60(%rax) + .byte 0xc5,0x78,0x29,0x78,0x70 #vmovaps %xmm15,0x70(%rax) ___ $code.=<<___; - vzeroupper lea .Lgather_table(%rip),%r11 mov $power,%eax and \$3,$power @@ -1596,25 +1613,25 @@ $code.=<<___; vpbroadcastb 2(%r11,%rax), %xmm14 vpbroadcastb 1(%r11,%rax), %xmm15 - lea ($inp,$power),$inp + lea 64($inp,$power),$inp mov \$64,%r11 # size optimization mov \$9,%eax jmp .Loop_gather_1024 .align 32 .Loop_gather_1024: - vpand ($inp), %xmm8,%xmm0 - vpand ($inp,%r11), %xmm9,%xmm1 - vpand ($inp,%r11,2), %xmm10,%xmm2 - vpand 64($inp,%r11,2), %xmm11,%xmm3 + vpand -64($inp), %xmm8,%xmm0 + vpand ($inp), %xmm9,%xmm1 + vpand 64($inp), %xmm10,%xmm2 + vpand ($inp,%r11,2), %xmm11,%xmm3 vpor %xmm0,%xmm1,%xmm1 - vpand ($inp,%r11,4), %xmm12,%xmm4 + vpand 64($inp,%r11,2), %xmm12,%xmm4 vpor %xmm2,%xmm3,%xmm3 - vpand 64($inp,%r11,4), %xmm13,%xmm5 + vpand ($inp,%r11,4), %xmm13,%xmm5 vpor %xmm1,%xmm3,%xmm3 - vpand -128($inp,%r11,8), %xmm14,%xmm6 + vpand 64($inp,%r11,4), %xmm14,%xmm6 vpor %xmm4,%xmm5,%xmm5 - vpand -64($inp,%r11,8), %xmm15,%xmm2 + vpand -128($inp,%r11,8), %xmm15,%xmm2 lea ($inp,%r11,8),$inp vpor %xmm3,%xmm5,%xmm5 vpor %xmm2,%xmm6,%xmm6 @@ -1798,16 +1815,16 @@ rsaz_se_handler: .rva .Lmul_1024_body,.Lmul_1024_epilogue .LSEH_info_rsaz_1024_gather5: .byte 0x01,0x33,0x16,0x00 - .byte 0x33,0xf8,0x09,0x00 #movaps 0x90(rsp),xmm15 - .byte 0x2e,0xe8,0x08,0x00 #movaps 0x80(rsp),xmm14 - .byte 0x29,0xd8,0x07,0x00 #movaps 0x70(rsp),xmm13 - .byte 0x24,0xc8,0x06,0x00 #movaps 0x60(rsp),xmm12 - .byte 0x1f,0xb8,0x05,0x00 #movaps 0x50(rsp),xmm11 - .byte 0x1a,0xa8,0x04,0x00 #movaps 0x40(rsp),xmm10 - .byte 0x15,0x98,0x03,0x00 #movaps 0x30(rsp),xmm9 - .byte 0x10,0x88,0x02,0x00 #movaps 0x20(rsp),xmm8 - .byte 0x0c,0x78,0x01,0x00 #movaps 0x10(rsp),xmm7 - .byte 0x08,0x68,0x00,0x00 #movaps 0x00(rsp),xmm6 + .byte 0x36,0xf8,0x09,0x00 #vmovaps 0x90(rsp),xmm15 + .byte 0x31,0xe8,0x08,0x00 #vmovaps 0x80(rsp),xmm14 + .byte 0x2c,0xd8,0x07,0x00 #vmovaps 0x70(rsp),xmm13 + .byte 0x27,0xc8,0x06,0x00 #vmovaps 0x60(rsp),xmm12 + .byte 0x22,0xb8,0x05,0x00 #vmovaps 0x50(rsp),xmm11 + .byte 0x1d,0xa8,0x04,0x00 #vmovaps 0x40(rsp),xmm10 + .byte 0x18,0x98,0x03,0x00 #vmovaps 0x30(rsp),xmm9 + .byte 0x13,0x88,0x02,0x00 #vmovaps 0x20(rsp),xmm8 + .byte 0x0e,0x78,0x01,0x00 #vmovaps 0x10(rsp),xmm7 + .byte 0x09,0x68,0x00,0x00 #vmovaps 0x00(rsp),xmm6 .byte 0x04,0x01,0x15,0x00 #sub rsp,0xa8 ___ } diff --git a/crypto/bn/asm/rsaz-x86_64.pl b/crypto/bn/asm/rsaz-x86_64.pl index cef1d0cc77..b55421b7db 100755 --- a/crypto/bn/asm/rsaz-x86_64.pl +++ b/crypto/bn/asm/rsaz-x86_64.pl @@ -1,48 +1,60 @@ #!/usr/bin/env perl -#******************************************************************************# -#* Copyright(c) 2012, Intel Corp. *# -#* Developers and authors: *# -#* Shay Gueron (1, 2), and Vlad Krasnov (1) *# -#* (1) Intel Architecture Group, Microprocessor and Chipset Development, *# -#* Israel Development Center, Haifa, Israel *# -#* (2) University of Haifa *# -#******************************************************************************# -#* This submission to OpenSSL is to be made available under the OpenSSL *# -#* license, and only to the OpenSSL project, in order to allow integration *# -#* into the publicly distributed code. ? *# -#* The use of this code, or portions of this code, or concepts embedded in *# -#* this code, or modification of this code and/or algorithm(s) in it, or the *# -#* use of this code for any other purpose than stated above, requires special *# -#* licensing. *# -#******************************************************************************# -#******************************************************************************# -#* DISCLAIMER: *# -#* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AND THE COPYRIGHT OWNERS *# -#* ``AS IS''. ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *# -#* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR *# -#* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS OR THE COPYRIGHT*# -#* OWNERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, *# -#* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF *# -#* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *# -#* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN *# -#* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) *# -#* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE *# -#* POSSIBILITY OF SUCH DAMAGE. *# -#******************************************************************************# -#* Reference: *# -#* [1] S. Gueron, "Efficient Software Implementations of Modular *# -#* Exponentiation", http://eprint.iacr.org/2011/239 *# -#* [2] S. Gueron, V. Krasnov. "Speeding up Big-Numbers Squaring". *# -#* IEEE Proceedings of 9th International Conference on Information *# -#* Technology: New Generations (ITNG 2012), 821-823 (2012). *# -#* [3] S. Gueron, Efficient Software Implementations of Modular Exponentiation*# -#* Journal of Cryptographic Engineering 2:31-43 (2012). *# -#* [4] S. Gueron, V. Krasnov: "[PATCH] Efficient and side channel analysis *# -#* resistant 512-bit and 1024-bit modular exponentiation for optimizing *# -#* RSA1024 and RSA2048 on x86_64 platforms", *# -#* http://rt.openssl.org/Ticket/Display.html?id=2582&user=guest&pass=guest*# -################################################################################ +############################################################################## +# # +# Copyright (c) 2012, Intel Corporation # +# # +# All rights reserved. # +# # +# Redistribution and use in source and binary forms, with or without # +# modification, are permitted provided that the following conditions are # +# met: # +# # +# * Redistributions of source code must retain the above copyright # +# notice, this list of conditions and the following disclaimer. # +# # +# * Redistributions in binary form must reproduce the above copyright # +# notice, this list of conditions and the following disclaimer in the # +# documentation and/or other materials provided with the # +# distribution. # +# # +# * Neither the name of the Intel Corporation nor the names of its # +# contributors may be used to endorse or promote products derived from # +# this software without specific prior written permission. # +# # +# # +# THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY # +# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR # +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, # +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, # +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR # +# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF # +# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING # +# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS # +# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # +# # +############################################################################## +# Developers and authors: # +# Shay Gueron (1, 2), and Vlad Krasnov (1) # +# (1) Intel Architecture Group, Microprocessor and Chipset Development, # +# Israel Development Center, Haifa, Israel # +# (2) University of Haifa # +############################################################################## +# Reference: # +# [1] S. Gueron, "Efficient Software Implementations of Modular # +# Exponentiation", http://eprint.iacr.org/2011/239 # +# [2] S. Gueron, V. Krasnov. "Speeding up Big-Numbers Squaring". # +# IEEE Proceedings of 9th International Conference on Information # +# Technology: New Generations (ITNG 2012), 821-823 (2012). # +# [3] S. Gueron, Efficient Software Implementations of Modular Exponentiation# +# Journal of Cryptographic Engineering 2:31-43 (2012). # +# [4] S. Gueron, V. Krasnov: "[PATCH] Efficient and side channel analysis # +# resistant 512-bit and 1024-bit modular exponentiation for optimizing # +# RSA1024 and RSA2048 on x86_64 platforms", # +# http://rt.openssl.org/Ticket/Display.html?id=2582&user=guest&pass=guest# +############################################################################## # While original submission covers 512- and 1024-bit exponentiation, # this module is limited to 512-bit version only (and as such @@ -1812,33 +1824,33 @@ $code.=<<___; .align 32 __rsaz_512_mulx: mulx ($ap), %rbx, %r8 # initial %rdx preloaded by caller - xor $zero, $zero # cf=0,of=0 + mov \$-6, %rcx mulx 8($ap), %rax, %r9 movq %rbx, 8(%rsp) mulx 16($ap), %rbx, %r10 - adcx %rax, %r8 + adc %rax, %r8 mulx 24($ap), %rax, %r11 - adcx %rbx, %r9 + adc %rbx, %r9 - .byte 0xc4,0x62,0xe3,0xf6,0xa6,0x20,0x00,0x00,0x00 # mulx 32($ap), %rbx, %r12 - adcx %rax, %r10 + mulx 32($ap), %rbx, %r12 + adc %rax, %r10 mulx 40($ap), %rax, %r13 - adcx %rbx, %r11 + adc %rbx, %r11 mulx 48($ap), %rbx, %r14 - adcx %rax, %r12 + adc %rax, %r12 mulx 56($ap), %rax, %r15 mov 8($bp), %rdx - adcx %rbx, %r13 - adcx %rax, %r14 - adcx $zero, %r15 # cf=0 + adc %rbx, %r13 + adc %rax, %r14 + adc \$0, %r15 - mov \$-6, %rcx + xor $zero, $zero # cf=0,of=0 jmp .Loop_mulx .align 32 diff --git a/crypto/bn/rsaz_exp.c b/crypto/bn/rsaz_exp.c index 57591b8db3..2cdb02a4f0 100644 --- a/crypto/bn/rsaz_exp.c +++ b/crypto/bn/rsaz_exp.c @@ -1,306 +1,318 @@ -/****************************************************************************** -* Copyright(c) 2012, Intel Corp. -* Developers and authors: -* Shay Gueron (1, 2), and Vlad Krasnov (1) -* (1) Intel Corporation, Israel Development Center, Haifa, Israel -* (2) University of Haifa, Israel -****************************************************************************** -* LICENSE: -* This submission to OpenSSL is to be made available under the OpenSSL -* license, and only to the OpenSSL project, in order to allow integration -* into the publicly distributed code. -* The use of this code, or portions of this code, or concepts embedded in -* this code, or modification of this code and/or algorithm(s) in it, or the -* use of this code for any other purpose than stated above, requires special -* licensing. -****************************************************************************** -* DISCLAIMER: -* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AND THE COPYRIGHT OWNERS -* ``AS IS''. ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED -* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS OR THE COPYRIGHT -* OWNERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, -* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -* POSSIBILITY OF SUCH DAMAGE. -******************************************************************************/ - -#include "rsaz_exp.h" - -/* - * See crypto/bn/asm/rsaz-avx2.pl for further details. - */ -void rsaz_1024_norm2red_avx2(void *red,const void *norm); -void rsaz_1024_mul_avx2(void *ret,const void *a,const void *b,const void *n,unsigned long k); -void rsaz_1024_sqr_avx2(void *ret,const void *a,const void *n,unsigned long k,int cnt); -void rsaz_1024_scatter5_avx2(void *tbl,const void *val,int i); -void rsaz_1024_gather5_avx2(void *val,const void *tbl,int i); -void rsaz_1024_red2norm_avx2(void *norm,const void *red); - -#if defined(__GNUC__) -# define ALIGN64 __attribute__((aligned(64))) -#elif defined(_MSC_VER) -# define ALIGN64 __declspec(align(64)) -#elif defined(__SUNPRO_C) -# define ALIGN64 -# pragma align 64(one,two80) -#else -# define ALIGN64 /* not fatal, might hurt performance a little */ -#endif - -ALIGN64 static const unsigned long one[40] = - {1,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; -ALIGN64 static const unsigned long two80[40] = - {0,0,1<<22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; - -void RSAZ_1024_mod_exp_avx2(BN_ULONG result_norm[16], - const BN_ULONG base_norm[16], const BN_ULONG exponent[16], - const BN_ULONG m_norm[16], const BN_ULONG RR[16], BN_ULONG k0) -{ - unsigned char storage[320*3+32*9*16+64]; /* 5.5KB */ - unsigned char *p_str = storage + (64-((size_t)storage%64)); - unsigned char *a_inv, *m, *result, - *table_s = p_str+320*3, - *R2 = table_s; /* borrow */ - int index; - int wvalue; - - if ((((size_t)p_str&4095)+320)>>12) { - result = p_str; - a_inv = p_str + 320; - m = p_str + 320*2; /* should not cross page */ - } else { - m = p_str; /* should not cross page */ - result = p_str + 320; - a_inv = p_str + 320*2; - } - - rsaz_1024_norm2red_avx2(m, m_norm); - rsaz_1024_norm2red_avx2(a_inv, base_norm); - rsaz_1024_norm2red_avx2(R2, RR); - - rsaz_1024_mul_avx2(R2, R2, R2, m, k0); - rsaz_1024_mul_avx2(R2, R2, two80, m, k0); - - /* table[0] = 1 */ - rsaz_1024_mul_avx2(result, R2, one, m, k0); - /* table[1] = a_inv^1 */ - rsaz_1024_mul_avx2(a_inv, a_inv, R2, m, k0); - - rsaz_1024_scatter5_avx2(table_s,result,0); - rsaz_1024_scatter5_avx2(table_s,a_inv,1); - - /* table[2] = a_inv^2 */ - rsaz_1024_sqr_avx2(result, a_inv, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,2); -#if 0 - /* this is almost 2x smaller and less than 1% slower */ - for (index=3; index<32; index++) { - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - rsaz_1024_scatter5_avx2(table_s,result,index); - } -#else - /* table[4] = a_inv^4 */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,4); - /* table[8] = a_inv^8 */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,8); - /* table[16] = a_inv^16 */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,16); - /* table[17] = a_inv^17 */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - rsaz_1024_scatter5_avx2(table_s,result,17); - - /* table[3] */ - rsaz_1024_gather5_avx2(result,table_s,2); - rsaz_1024_mul_avx2(result,result,a_inv,m,k0); - rsaz_1024_scatter5_avx2(table_s,result,3); - /* table[6] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,6); - /* table[12] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,12); - /* table[24] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,24); - /* table[25] */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - rsaz_1024_scatter5_avx2(table_s,result,25); - - /* table[5] */ - rsaz_1024_gather5_avx2(result,table_s,4); - rsaz_1024_mul_avx2(result,result,a_inv,m,k0); - rsaz_1024_scatter5_avx2(table_s,result,5); - /* table[10] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,10); - /* table[20] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,20); - /* table[21] */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - rsaz_1024_scatter5_avx2(table_s,result,21); - - /* table[7] */ - rsaz_1024_gather5_avx2(result,table_s,6); - rsaz_1024_mul_avx2(result,result,a_inv,m,k0); - rsaz_1024_scatter5_avx2(table_s,result,7); - /* table[14] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,14); - /* table[28] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,28); - /* table[29] */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - rsaz_1024_scatter5_avx2(table_s,result,29); - - /* table[9] */ - rsaz_1024_gather5_avx2(result,table_s,8); - rsaz_1024_mul_avx2(result,result,a_inv,m,k0); - rsaz_1024_scatter5_avx2(table_s,result,9); - /* table[18] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,18); - /* table[19] */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - rsaz_1024_scatter5_avx2(table_s,result,19); - - /* table[11] */ - rsaz_1024_gather5_avx2(result,table_s,10); - rsaz_1024_mul_avx2(result,result,a_inv,m,k0); - rsaz_1024_scatter5_avx2(table_s,result,11); - /* table[22] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,22); - /* table[23] */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - rsaz_1024_scatter5_avx2(table_s,result,23); - - /* table[13] */ - rsaz_1024_gather5_avx2(result,table_s,12); - rsaz_1024_mul_avx2(result,result,a_inv,m,k0); - rsaz_1024_scatter5_avx2(table_s,result,13); - /* table[26] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,26); - /* table[27] */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - rsaz_1024_scatter5_avx2(table_s,result,27); - - /* table[15] */ - rsaz_1024_gather5_avx2(result,table_s,14); - rsaz_1024_mul_avx2(result,result,a_inv,m,k0); - rsaz_1024_scatter5_avx2(table_s,result,15); - /* table[30] */ - rsaz_1024_sqr_avx2(result, result, m, k0, 1); - rsaz_1024_scatter5_avx2(table_s,result,30); - /* table[31] */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - rsaz_1024_scatter5_avx2(table_s,result,31); -#endif - - /* load first window */ - p_str = (unsigned char*)exponent; - wvalue = p_str[127] >> 3; - rsaz_1024_gather5_avx2(result,table_s,wvalue); - - index = 1014; - - while(index > -1) { /* loop for the remaining 127 windows */ - - rsaz_1024_sqr_avx2(result, result, m, k0, 5); - - wvalue = *((unsigned short*)&p_str[index/8]); - wvalue = (wvalue>> (index%8)) & 31; - index-=5; - - rsaz_1024_gather5_avx2(a_inv,table_s,wvalue); /* borrow a_inv */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - } - - /* square four times */ - rsaz_1024_sqr_avx2(result, result, m, k0, 4); - - wvalue = p_str[0] & 15; - - rsaz_1024_gather5_avx2(a_inv,table_s,wvalue); /* borrow a_inv */ - rsaz_1024_mul_avx2(result, result, a_inv, m, k0); - - /* from Montgomery */ - rsaz_1024_mul_avx2(result, result, one, m, k0); - - rsaz_1024_red2norm_avx2(result_norm, result); - - OPENSSL_cleanse(storage,sizeof(storage)); -} - -/* - * See crypto/bn/rsaz-x86_64.pl for further details. - */ -void rsaz_512_mul(void *ret,const void *a,const void *b,const void *n,unsigned long k); -void rsaz_512_mul_scatter4(void *ret,const void *a,const void *n,unsigned long k,const void *tbl,unsigned int power); -void rsaz_512_mul_gather4(void *ret,const void *a,const void *tbl,const void *n,unsigned long k,unsigned int power); -void rsaz_512_mul_by_one(void *ret,const void *a,const void *n,unsigned long k); -void rsaz_512_sqr(void *ret,const void *a,const void *n,unsigned long k,int cnt); -void rsaz_512_scatter4(void *tbl, const unsigned long *val, int power); -void rsaz_512_gather4(unsigned long *val, const void *tbl, int power); - -void RSAZ_512_mod_exp(BN_ULONG result[8], - const BN_ULONG base[8], const BN_ULONG exponent[8], - const BN_ULONG m[8], BN_ULONG k0, const BN_ULONG RR[8]) -{ - unsigned char storage[16*8*8+64*2+64]; /* 1.2KB */ - unsigned char *table = storage + (64-((size_t)storage%64)); - unsigned long *a_inv = (unsigned long *)(table+16*8*8), - *temp = (unsigned long *)(table+16*8*8+8*8); - unsigned char *p_str = (unsigned char*)exponent; - int index; - unsigned int wvalue; - - /* table[0] = 1_inv */ - temp[0] = 0-m[0]; temp[1] = ~m[1]; - temp[2] = ~m[2]; temp[3] = ~m[3]; - temp[4] = ~m[4]; temp[5] = ~m[5]; - temp[6] = ~m[6]; temp[7] = ~m[7]; - rsaz_512_scatter4(table, temp, 0); - - /* table [1] = a_inv^1 */ - rsaz_512_mul(a_inv, base, RR, m, k0); - rsaz_512_scatter4(table, a_inv, 1); - - /* table [2] = a_inv^2 */ - rsaz_512_sqr(temp, a_inv, m, k0, 1); - rsaz_512_scatter4(table, temp, 2); - - for (index=3; index<16; index++) - rsaz_512_mul_scatter4(temp, a_inv, m, k0, table, index); - - /* load first window */ - wvalue = p_str[63]; - - rsaz_512_gather4(temp, table, wvalue>>4); - rsaz_512_sqr(temp, temp, m, k0, 4); - rsaz_512_mul_gather4(temp, temp, table, m, k0, wvalue&0xf); - - for (index=62; index>=0; index--) { - wvalue = p_str[index]; - - rsaz_512_sqr(temp, temp, m, k0, 4); - rsaz_512_mul_gather4(temp, temp, table, m, k0, wvalue>>4); - - rsaz_512_sqr(temp, temp, m, k0, 4); - rsaz_512_mul_gather4(temp, temp, table, m, k0, wvalue&0x0f); - } - - /* from Montgomery */ - rsaz_512_mul_by_one(result, temp, m, k0); - - OPENSSL_cleanse(storage,sizeof(storage)); -} +/***************************************************************************** +* * +* Copyright (c) 2012, Intel Corporation * +* * +* All rights reserved. * +* * +* Redistribution and use in source and binary forms, with or without * +* modification, are permitted provided that the following conditions are * +* met: * +* * +* * Redistributions of source code must retain the above copyright * +* notice, this list of conditions and the following disclaimer. * +* * +* * Redistributions in binary form must reproduce the above copyright * +* notice, this list of conditions and the following disclaimer in the * +* documentation and/or other materials provided with the * +* distribution. * +* * +* * Neither the name of the Intel Corporation nor the names of its * +* contributors may be used to endorse or promote products derived from * +* this software without specific prior written permission. * +* * +* * +* THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY * +* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * +* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * +* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR * +* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * +* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * +* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * +* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * +* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * +* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * +* * +****************************************************************************** +* Developers and authors: * +* Shay Gueron (1, 2), and Vlad Krasnov (1) * +* (1) Intel Corporation, Israel Development Center, Haifa, Israel * +* (2) University of Haifa, Israel * +*****************************************************************************/ + +#include "rsaz_exp.h" + +/* + * See crypto/bn/asm/rsaz-avx2.pl for further details. + */ +void rsaz_1024_norm2red_avx2(void *red,const void *norm); +void rsaz_1024_mul_avx2(void *ret,const void *a,const void *b,const void *n,unsigned long k); +void rsaz_1024_sqr_avx2(void *ret,const void *a,const void *n,unsigned long k,int cnt); +void rsaz_1024_scatter5_avx2(void *tbl,const void *val,int i); +void rsaz_1024_gather5_avx2(void *val,const void *tbl,int i); +void rsaz_1024_red2norm_avx2(void *norm,const void *red); + +#if defined(__GNUC__) +# define ALIGN64 __attribute__((aligned(64))) +#elif defined(_MSC_VER) +# define ALIGN64 __declspec(align(64)) +#elif defined(__SUNPRO_C) +# define ALIGN64 +# pragma align 64(one,two80) +#else +# define ALIGN64 /* not fatal, might hurt performance a little */ +#endif + +ALIGN64 static const unsigned long one[40] = + {1,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; +ALIGN64 static const unsigned long two80[40] = + {0,0,1<<22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; + +void RSAZ_1024_mod_exp_avx2(BN_ULONG result_norm[16], + const BN_ULONG base_norm[16], const BN_ULONG exponent[16], + const BN_ULONG m_norm[16], const BN_ULONG RR[16], BN_ULONG k0) +{ + unsigned char storage[320*3+32*9*16+64]; /* 5.5KB */ + unsigned char *p_str = storage + (64-((size_t)storage%64)); + unsigned char *a_inv, *m, *result, + *table_s = p_str+320*3, + *R2 = table_s; /* borrow */ + int index; + int wvalue; + + if ((((size_t)p_str&4095)+320)>>12) { + result = p_str; + a_inv = p_str + 320; + m = p_str + 320*2; /* should not cross page */ + } else { + m = p_str; /* should not cross page */ + result = p_str + 320; + a_inv = p_str + 320*2; + } + + rsaz_1024_norm2red_avx2(m, m_norm); + rsaz_1024_norm2red_avx2(a_inv, base_norm); + rsaz_1024_norm2red_avx2(R2, RR); + + rsaz_1024_mul_avx2(R2, R2, R2, m, k0); + rsaz_1024_mul_avx2(R2, R2, two80, m, k0); + + /* table[0] = 1 */ + rsaz_1024_mul_avx2(result, R2, one, m, k0); + /* table[1] = a_inv^1 */ + rsaz_1024_mul_avx2(a_inv, a_inv, R2, m, k0); + + rsaz_1024_scatter5_avx2(table_s,result,0); + rsaz_1024_scatter5_avx2(table_s,a_inv,1); + + /* table[2] = a_inv^2 */ + rsaz_1024_sqr_avx2(result, a_inv, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,2); +#if 0 + /* this is almost 2x smaller and less than 1% slower */ + for (index=3; index<32; index++) { + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + rsaz_1024_scatter5_avx2(table_s,result,index); + } +#else + /* table[4] = a_inv^4 */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,4); + /* table[8] = a_inv^8 */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,8); + /* table[16] = a_inv^16 */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,16); + /* table[17] = a_inv^17 */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + rsaz_1024_scatter5_avx2(table_s,result,17); + + /* table[3] */ + rsaz_1024_gather5_avx2(result,table_s,2); + rsaz_1024_mul_avx2(result,result,a_inv,m,k0); + rsaz_1024_scatter5_avx2(table_s,result,3); + /* table[6] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,6); + /* table[12] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,12); + /* table[24] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,24); + /* table[25] */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + rsaz_1024_scatter5_avx2(table_s,result,25); + + /* table[5] */ + rsaz_1024_gather5_avx2(result,table_s,4); + rsaz_1024_mul_avx2(result,result,a_inv,m,k0); + rsaz_1024_scatter5_avx2(table_s,result,5); + /* table[10] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,10); + /* table[20] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,20); + /* table[21] */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + rsaz_1024_scatter5_avx2(table_s,result,21); + + /* table[7] */ + rsaz_1024_gather5_avx2(result,table_s,6); + rsaz_1024_mul_avx2(result,result,a_inv,m,k0); + rsaz_1024_scatter5_avx2(table_s,result,7); + /* table[14] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,14); + /* table[28] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,28); + /* table[29] */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + rsaz_1024_scatter5_avx2(table_s,result,29); + + /* table[9] */ + rsaz_1024_gather5_avx2(result,table_s,8); + rsaz_1024_mul_avx2(result,result,a_inv,m,k0); + rsaz_1024_scatter5_avx2(table_s,result,9); + /* table[18] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,18); + /* table[19] */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + rsaz_1024_scatter5_avx2(table_s,result,19); + + /* table[11] */ + rsaz_1024_gather5_avx2(result,table_s,10); + rsaz_1024_mul_avx2(result,result,a_inv,m,k0); + rsaz_1024_scatter5_avx2(table_s,result,11); + /* table[22] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,22); + /* table[23] */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + rsaz_1024_scatter5_avx2(table_s,result,23); + + /* table[13] */ + rsaz_1024_gather5_avx2(result,table_s,12); + rsaz_1024_mul_avx2(result,result,a_inv,m,k0); + rsaz_1024_scatter5_avx2(table_s,result,13); + /* table[26] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,26); + /* table[27] */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + rsaz_1024_scatter5_avx2(table_s,result,27); + + /* table[15] */ + rsaz_1024_gather5_avx2(result,table_s,14); + rsaz_1024_mul_avx2(result,result,a_inv,m,k0); + rsaz_1024_scatter5_avx2(table_s,result,15); + /* table[30] */ + rsaz_1024_sqr_avx2(result, result, m, k0, 1); + rsaz_1024_scatter5_avx2(table_s,result,30); + /* table[31] */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + rsaz_1024_scatter5_avx2(table_s,result,31); +#endif + + /* load first window */ + p_str = (unsigned char*)exponent; + wvalue = p_str[127] >> 3; + rsaz_1024_gather5_avx2(result,table_s,wvalue); + + index = 1014; + + while(index > -1) { /* loop for the remaining 127 windows */ + + rsaz_1024_sqr_avx2(result, result, m, k0, 5); + + wvalue = *((unsigned short*)&p_str[index/8]); + wvalue = (wvalue>> (index%8)) & 31; + index-=5; + + rsaz_1024_gather5_avx2(a_inv,table_s,wvalue); /* borrow a_inv */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + } + + /* square four times */ + rsaz_1024_sqr_avx2(result, result, m, k0, 4); + + wvalue = p_str[0] & 15; + + rsaz_1024_gather5_avx2(a_inv,table_s,wvalue); /* borrow a_inv */ + rsaz_1024_mul_avx2(result, result, a_inv, m, k0); + + /* from Montgomery */ + rsaz_1024_mul_avx2(result, result, one, m, k0); + + rsaz_1024_red2norm_avx2(result_norm, result); + + OPENSSL_cleanse(storage,sizeof(storage)); +} + +/* + * See crypto/bn/rsaz-x86_64.pl for further details. + */ +void rsaz_512_mul(void *ret,const void *a,const void *b,const void *n,unsigned long k); +void rsaz_512_mul_scatter4(void *ret,const void *a,const void *n,unsigned long k,const void *tbl,unsigned int power); +void rsaz_512_mul_gather4(void *ret,const void *a,const void *tbl,const void *n,unsigned long k,unsigned int power); +void rsaz_512_mul_by_one(void *ret,const void *a,const void *n,unsigned long k); +void rsaz_512_sqr(void *ret,const void *a,const void *n,unsigned long k,int cnt); +void rsaz_512_scatter4(void *tbl, const unsigned long *val, int power); +void rsaz_512_gather4(unsigned long *val, const void *tbl, int power); + +void RSAZ_512_mod_exp(BN_ULONG result[8], + const BN_ULONG base[8], const BN_ULONG exponent[8], + const BN_ULONG m[8], BN_ULONG k0, const BN_ULONG RR[8]) +{ + unsigned char storage[16*8*8+64*2+64]; /* 1.2KB */ + unsigned char *table = storage + (64-((size_t)storage%64)); + unsigned long *a_inv = (unsigned long *)(table+16*8*8), + *temp = (unsigned long *)(table+16*8*8+8*8); + unsigned char *p_str = (unsigned char*)exponent; + int index; + unsigned int wvalue; + + /* table[0] = 1_inv */ + temp[0] = 0-m[0]; temp[1] = ~m[1]; + temp[2] = ~m[2]; temp[3] = ~m[3]; + temp[4] = ~m[4]; temp[5] = ~m[5]; + temp[6] = ~m[6]; temp[7] = ~m[7]; + rsaz_512_scatter4(table, temp, 0); + + /* table [1] = a_inv^1 */ + rsaz_512_mul(a_inv, base, RR, m, k0); + rsaz_512_scatter4(table, a_inv, 1); + + /* table [2] = a_inv^2 */ + rsaz_512_sqr(temp, a_inv, m, k0, 1); + rsaz_512_scatter4(table, temp, 2); + + for (index=3; index<16; index++) + rsaz_512_mul_scatter4(temp, a_inv, m, k0, table, index); + + /* load first window */ + wvalue = p_str[63]; + + rsaz_512_gather4(temp, table, wvalue>>4); + rsaz_512_sqr(temp, temp, m, k0, 4); + rsaz_512_mul_gather4(temp, temp, table, m, k0, wvalue&0xf); + + for (index=62; index>=0; index--) { + wvalue = p_str[index]; + + rsaz_512_sqr(temp, temp, m, k0, 4); + rsaz_512_mul_gather4(temp, temp, table, m, k0, wvalue>>4); + + rsaz_512_sqr(temp, temp, m, k0, 4); + rsaz_512_mul_gather4(temp, temp, table, m, k0, wvalue&0x0f); + } + + /* from Montgomery */ + rsaz_512_mul_by_one(result, temp, m, k0); + + OPENSSL_cleanse(storage,sizeof(storage)); +} -- 2.34.1