-/******************************************************************************\r
-* Copyright(c) 2012, Intel Corp. \r
-* Developers and authors: \r
-* Shay Gueron (1, 2), and Vlad Krasnov (1) \r
-* (1) Intel Corporation, Israel Development Center, Haifa, Israel \r
-* (2) University of Haifa, Israel \r
-******************************************************************************\r
-* LICENSE: \r
-* This submission to OpenSSL is to be made available under the OpenSSL \r
-* license, and only to the OpenSSL project, in order to allow integration \r
-* into the publicly distributed code. \r
-* The use of this code, or portions of this code, or concepts embedded in\r
-* this code, or modification of this code and/or algorithm(s) in it, or the\r
-* use of this code for any other purpose than stated above, requires special\r
-* licensing. \r
-******************************************************************************\r
-* DISCLAIMER: \r
-* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AND THE COPYRIGHT OWNERS \r
-* ``AS IS''. ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED \r
-* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR \r
-* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS OR THE COPYRIGHT\r
-* OWNERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, \r
-* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF \r
-* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS \r
-* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN \r
-* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) \r
-* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE \r
-* POSSIBILITY OF SUCH DAMAGE. \r
-******************************************************************************/\r
-\r
-#include "rsaz_exp.h"\r
-\r
-/*\r
- * See crypto/bn/asm/rsaz-avx2.pl for further details.\r
- */\r
-void rsaz_1024_norm2red_avx2(void *red,const void *norm);\r
-void rsaz_1024_mul_avx2(void *ret,const void *a,const void *b,const void *n,unsigned long k);\r
-void rsaz_1024_sqr_avx2(void *ret,const void *a,const void *n,unsigned long k,int cnt);\r
-void rsaz_1024_scatter5_avx2(void *tbl,const void *val,int i);\r
-void rsaz_1024_gather5_avx2(void *val,const void *tbl,int i);\r
-void rsaz_1024_red2norm_avx2(void *norm,const void *red);\r
-\r
-#if defined(__GNUC__)\r
-# define ALIGN64 __attribute__((aligned(64)))\r
-#elif defined(_MSC_VER)\r
-# define ALIGN64 __declspec(align(64))\r
-#elif defined(__SUNPRO_C)\r
-# define ALIGN64\r
-# pragma align 64(one,two80)\r
-#else\r
-# define ALIGN64 /* not fatal, might hurt performance a little */\r
-#endif\r
-\r
-ALIGN64 static const unsigned long one[40] =\r
- {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};\r
-ALIGN64 static const unsigned long two80[40] =\r
- {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};\r
-\r
-void RSAZ_1024_mod_exp_avx2(BN_ULONG result_norm[16],\r
- const BN_ULONG base_norm[16], const BN_ULONG exponent[16],\r
- const BN_ULONG m_norm[16], const BN_ULONG RR[16], BN_ULONG k0)\r
-{\r
- unsigned char storage[320*3+32*9*16+64]; /* 5.5KB */\r
- unsigned char *p_str = storage + (64-((size_t)storage%64));\r
- unsigned char *a_inv, *m, *result,\r
- *table_s = p_str+320*3,\r
- *R2 = table_s; /* borrow */\r
- int index;\r
- int wvalue;\r
-\r
- if ((((size_t)p_str&4095)+320)>>12) {\r
- result = p_str;\r
- a_inv = p_str + 320;\r
- m = p_str + 320*2; /* should not cross page */\r
- } else {\r
- m = p_str; /* should not cross page */\r
- result = p_str + 320;\r
- a_inv = p_str + 320*2;\r
- }\r
-\r
- rsaz_1024_norm2red_avx2(m, m_norm);\r
- rsaz_1024_norm2red_avx2(a_inv, base_norm);\r
- rsaz_1024_norm2red_avx2(R2, RR);\r
-\r
- rsaz_1024_mul_avx2(R2, R2, R2, m, k0);\r
- rsaz_1024_mul_avx2(R2, R2, two80, m, k0);\r
-\r
- /* table[0] = 1 */\r
- rsaz_1024_mul_avx2(result, R2, one, m, k0);\r
- /* table[1] = a_inv^1 */\r
- rsaz_1024_mul_avx2(a_inv, a_inv, R2, m, k0);\r
-\r
- rsaz_1024_scatter5_avx2(table_s,result,0);\r
- rsaz_1024_scatter5_avx2(table_s,a_inv,1);\r
-\r
- /* table[2] = a_inv^2 */\r
- rsaz_1024_sqr_avx2(result, a_inv, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,2);\r
-#if 0\r
- /* this is almost 2x smaller and less than 1% slower */\r
- for (index=3; index<32; index++) {\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,index);\r
- }\r
-#else\r
- /* table[4] = a_inv^4 */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,4);\r
- /* table[8] = a_inv^8 */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,8);\r
- /* table[16] = a_inv^16 */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,16);\r
- /* table[17] = a_inv^17 */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,17);\r
-\r
- /* table[3] */\r
- rsaz_1024_gather5_avx2(result,table_s,2);\r
- rsaz_1024_mul_avx2(result,result,a_inv,m,k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,3);\r
- /* table[6] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,6);\r
- /* table[12] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,12);\r
- /* table[24] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,24);\r
- /* table[25] */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,25);\r
-\r
- /* table[5] */\r
- rsaz_1024_gather5_avx2(result,table_s,4);\r
- rsaz_1024_mul_avx2(result,result,a_inv,m,k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,5);\r
- /* table[10] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,10);\r
- /* table[20] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,20);\r
- /* table[21] */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,21);\r
-\r
- /* table[7] */\r
- rsaz_1024_gather5_avx2(result,table_s,6);\r
- rsaz_1024_mul_avx2(result,result,a_inv,m,k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,7);\r
- /* table[14] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,14);\r
- /* table[28] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,28);\r
- /* table[29] */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,29);\r
-\r
- /* table[9] */\r
- rsaz_1024_gather5_avx2(result,table_s,8);\r
- rsaz_1024_mul_avx2(result,result,a_inv,m,k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,9);\r
- /* table[18] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,18);\r
- /* table[19] */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,19);\r
-\r
- /* table[11] */\r
- rsaz_1024_gather5_avx2(result,table_s,10);\r
- rsaz_1024_mul_avx2(result,result,a_inv,m,k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,11);\r
- /* table[22] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,22);\r
- /* table[23] */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,23);\r
-\r
- /* table[13] */\r
- rsaz_1024_gather5_avx2(result,table_s,12);\r
- rsaz_1024_mul_avx2(result,result,a_inv,m,k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,13);\r
- /* table[26] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,26);\r
- /* table[27] */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,27);\r
-\r
- /* table[15] */\r
- rsaz_1024_gather5_avx2(result,table_s,14);\r
- rsaz_1024_mul_avx2(result,result,a_inv,m,k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,15);\r
- /* table[30] */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 1);\r
- rsaz_1024_scatter5_avx2(table_s,result,30);\r
- /* table[31] */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- rsaz_1024_scatter5_avx2(table_s,result,31);\r
-#endif\r
-\r
- /* load first window */\r
- p_str = (unsigned char*)exponent;\r
- wvalue = p_str[127] >> 3;\r
- rsaz_1024_gather5_avx2(result,table_s,wvalue);\r
-\r
- index = 1014;\r
-\r
- while(index > -1) { /* loop for the remaining 127 windows */\r
-\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 5);\r
-\r
- wvalue = *((unsigned short*)&p_str[index/8]);\r
- wvalue = (wvalue>> (index%8)) & 31;\r
- index-=5;\r
-\r
- rsaz_1024_gather5_avx2(a_inv,table_s,wvalue); /* borrow a_inv */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
- }\r
-\r
- /* square four times */\r
- rsaz_1024_sqr_avx2(result, result, m, k0, 4);\r
-\r
- wvalue = p_str[0] & 15;\r
-\r
- rsaz_1024_gather5_avx2(a_inv,table_s,wvalue); /* borrow a_inv */\r
- rsaz_1024_mul_avx2(result, result, a_inv, m, k0);\r
-\r
- /* from Montgomery */\r
- rsaz_1024_mul_avx2(result, result, one, m, k0);\r
-\r
- rsaz_1024_red2norm_avx2(result_norm, result);\r
-\r
- OPENSSL_cleanse(storage,sizeof(storage));\r
-}\r
-\r
-/*\r
- * See crypto/bn/rsaz-x86_64.pl for further details.\r
- */\r
-void rsaz_512_mul(void *ret,const void *a,const void *b,const void *n,unsigned long k);\r
-void rsaz_512_mul_scatter4(void *ret,const void *a,const void *n,unsigned long k,const void *tbl,unsigned int power);\r
-void rsaz_512_mul_gather4(void *ret,const void *a,const void *tbl,const void *n,unsigned long k,unsigned int power);\r
-void rsaz_512_mul_by_one(void *ret,const void *a,const void *n,unsigned long k);\r
-void rsaz_512_sqr(void *ret,const void *a,const void *n,unsigned long k,int cnt);\r
-void rsaz_512_scatter4(void *tbl, const unsigned long *val, int power);\r
-void rsaz_512_gather4(unsigned long *val, const void *tbl, int power);\r
-\r
-void RSAZ_512_mod_exp(BN_ULONG result[8],\r
- const BN_ULONG base[8], const BN_ULONG exponent[8],\r
- const BN_ULONG m[8], BN_ULONG k0, const BN_ULONG RR[8])\r
-{\r
- unsigned char storage[16*8*8+64*2+64]; /* 1.2KB */\r
- unsigned char *table = storage + (64-((size_t)storage%64));\r
- unsigned long *a_inv = (unsigned long *)(table+16*8*8),\r
- *temp = (unsigned long *)(table+16*8*8+8*8);\r
- unsigned char *p_str = (unsigned char*)exponent;\r
- int index;\r
- unsigned int wvalue;\r
-\r
- /* table[0] = 1_inv */\r
- temp[0] = 0-m[0]; temp[1] = ~m[1];\r
- temp[2] = ~m[2]; temp[3] = ~m[3];\r
- temp[4] = ~m[4]; temp[5] = ~m[5];\r
- temp[6] = ~m[6]; temp[7] = ~m[7];\r
- rsaz_512_scatter4(table, temp, 0);\r
-\r
- /* table [1] = a_inv^1 */\r
- rsaz_512_mul(a_inv, base, RR, m, k0);\r
- rsaz_512_scatter4(table, a_inv, 1);\r
-\r
- /* table [2] = a_inv^2 */\r
- rsaz_512_sqr(temp, a_inv, m, k0, 1);\r
- rsaz_512_scatter4(table, temp, 2);\r
-\r
- for (index=3; index<16; index++)\r
- rsaz_512_mul_scatter4(temp, a_inv, m, k0, table, index);\r
-\r
- /* load first window */\r
- wvalue = p_str[63];\r
-\r
- rsaz_512_gather4(temp, table, wvalue>>4);\r
- rsaz_512_sqr(temp, temp, m, k0, 4);\r
- rsaz_512_mul_gather4(temp, temp, table, m, k0, wvalue&0xf);\r
-\r
- for (index=62; index>=0; index--) {\r
- wvalue = p_str[index];\r
-\r
- rsaz_512_sqr(temp, temp, m, k0, 4);\r
- rsaz_512_mul_gather4(temp, temp, table, m, k0, wvalue>>4);\r
-\r
- rsaz_512_sqr(temp, temp, m, k0, 4);\r
- rsaz_512_mul_gather4(temp, temp, table, m, k0, wvalue&0x0f);\r
- }\r
-\r
- /* from Montgomery */\r
- rsaz_512_mul_by_one(result, temp, m, k0);\r
-\r
- OPENSSL_cleanse(storage,sizeof(storage));\r
-}\r
+/*
+ * Copyright 2013-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*****************************************************************************
+* *
+* 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 <openssl/opensslconf.h>
+#include "rsaz_exp.h"
+
+#ifndef RSAZ_ENABLED
+NON_EMPTY_TRANSLATION_UNIT
+#else
+
+/*
+ * 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, BN_ULONG k);
+void rsaz_1024_sqr_avx2(void *ret, const void *a, const void *n, BN_ULONG 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
+/* not fatal, might hurt performance a little */
+# define ALIGN64
+#endif
+
+ALIGN64 static const BN_ULONG 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 BN_ULONG 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;
+ unsigned char *table_s = p_str + 320 * 3;
+ unsigned char *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,
+ BN_ULONG k);
+void rsaz_512_mul_scatter4(void *ret, const void *a, const void *n,
+ BN_ULONG k, const void *tbl, unsigned int power);
+void rsaz_512_mul_gather4(void *ret, const void *a, const void *tbl,
+ const void *n, BN_ULONG k, unsigned int power);
+void rsaz_512_mul_by_one(void *ret, const void *a, const void *n, BN_ULONG k);
+void rsaz_512_sqr(void *ret, const void *a, const void *n, BN_ULONG k,
+ int cnt);
+void rsaz_512_scatter4(void *tbl, const BN_ULONG *val, int power);
+void rsaz_512_gather4(BN_ULONG *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));
+ BN_ULONG *a_inv = (BN_ULONG *)(table + 16 * 8 * 8);
+ BN_ULONG *temp = (BN_ULONG *)(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));
+}
+
+#endif
projects / openssl.git / blobdiff