306 lines
11 KiB
C
306 lines
11 KiB
C
/******************************************************************************
|
|
* 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));
|
|
}
|