diff options
Diffstat (limited to 'openssl/crypto/bn/bn_asm.c')
-rw-r--r-- | openssl/crypto/bn/bn_asm.c | 1030 |
1 files changed, 0 insertions, 1030 deletions
diff --git a/openssl/crypto/bn/bn_asm.c b/openssl/crypto/bn/bn_asm.c deleted file mode 100644 index c43c91cc..00000000 --- a/openssl/crypto/bn/bn_asm.c +++ /dev/null @@ -1,1030 +0,0 @@ -/* crypto/bn/bn_asm.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 THE AUTHOR 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. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#ifndef BN_DEBUG -# undef NDEBUG /* avoid conflicting definitions */ -# define NDEBUG -#endif - -#include <stdio.h> -#include <assert.h> -#include "cryptlib.h" -#include "bn_lcl.h" - -#if defined(BN_LLONG) || defined(BN_UMULT_HIGH) - -BN_ULONG bn_mul_add_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w) - { - BN_ULONG c1=0; - - assert(num >= 0); - if (num <= 0) return(c1); - -#ifndef OPENSSL_SMALL_FOOTPRINT - while (num&~3) - { - mul_add(rp[0],ap[0],w,c1); - mul_add(rp[1],ap[1],w,c1); - mul_add(rp[2],ap[2],w,c1); - mul_add(rp[3],ap[3],w,c1); - ap+=4; rp+=4; num-=4; - } -#endif - while (num) - { - mul_add(rp[0],ap[0],w,c1); - ap++; rp++; num--; - } - - return(c1); - } - -BN_ULONG bn_mul_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w) - { - BN_ULONG c1=0; - - assert(num >= 0); - if (num <= 0) return(c1); - -#ifndef OPENSSL_SMALL_FOOTPRINT - while (num&~3) - { - mul(rp[0],ap[0],w,c1); - mul(rp[1],ap[1],w,c1); - mul(rp[2],ap[2],w,c1); - mul(rp[3],ap[3],w,c1); - ap+=4; rp+=4; num-=4; - } -#endif - while (num) - { - mul(rp[0],ap[0],w,c1); - ap++; rp++; num--; - } - return(c1); - } - -void bn_sqr_words(BN_ULONG *r, const BN_ULONG *a, int n) - { - assert(n >= 0); - if (n <= 0) return; - -#ifndef OPENSSL_SMALL_FOOTPRINT - while (n&~3) - { - sqr(r[0],r[1],a[0]); - sqr(r[2],r[3],a[1]); - sqr(r[4],r[5],a[2]); - sqr(r[6],r[7],a[3]); - a+=4; r+=8; n-=4; - } -#endif - while (n) - { - sqr(r[0],r[1],a[0]); - a++; r+=2; n--; - } - } - -#else /* !(defined(BN_LLONG) || defined(BN_UMULT_HIGH)) */ - -BN_ULONG bn_mul_add_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w) - { - BN_ULONG c=0; - BN_ULONG bl,bh; - - assert(num >= 0); - if (num <= 0) return((BN_ULONG)0); - - bl=LBITS(w); - bh=HBITS(w); - -#ifndef OPENSSL_SMALL_FOOTPRINT - while (num&~3) - { - mul_add(rp[0],ap[0],bl,bh,c); - mul_add(rp[1],ap[1],bl,bh,c); - mul_add(rp[2],ap[2],bl,bh,c); - mul_add(rp[3],ap[3],bl,bh,c); - ap+=4; rp+=4; num-=4; - } -#endif - while (num) - { - mul_add(rp[0],ap[0],bl,bh,c); - ap++; rp++; num--; - } - return(c); - } - -BN_ULONG bn_mul_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w) - { - BN_ULONG carry=0; - BN_ULONG bl,bh; - - assert(num >= 0); - if (num <= 0) return((BN_ULONG)0); - - bl=LBITS(w); - bh=HBITS(w); - -#ifndef OPENSSL_SMALL_FOOTPRINT - while (num&~3) - { - mul(rp[0],ap[0],bl,bh,carry); - mul(rp[1],ap[1],bl,bh,carry); - mul(rp[2],ap[2],bl,bh,carry); - mul(rp[3],ap[3],bl,bh,carry); - ap+=4; rp+=4; num-=4; - } -#endif - while (num) - { - mul(rp[0],ap[0],bl,bh,carry); - ap++; rp++; num--; - } - return(carry); - } - -void bn_sqr_words(BN_ULONG *r, const BN_ULONG *a, int n) - { - assert(n >= 0); - if (n <= 0) return; - -#ifndef OPENSSL_SMALL_FOOTPRINT - while (n&~3) - { - sqr64(r[0],r[1],a[0]); - sqr64(r[2],r[3],a[1]); - sqr64(r[4],r[5],a[2]); - sqr64(r[6],r[7],a[3]); - a+=4; r+=8; n-=4; - } -#endif - while (n) - { - sqr64(r[0],r[1],a[0]); - a++; r+=2; n--; - } - } - -#endif /* !(defined(BN_LLONG) || defined(BN_UMULT_HIGH)) */ - -#if defined(BN_LLONG) && defined(BN_DIV2W) - -BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d) - { - return((BN_ULONG)(((((BN_ULLONG)h)<<BN_BITS2)|l)/(BN_ULLONG)d)); - } - -#else - -/* Divide h,l by d and return the result. */ -/* I need to test this some more :-( */ -BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d) - { - BN_ULONG dh,dl,q,ret=0,th,tl,t; - int i,count=2; - - if (d == 0) return(BN_MASK2); - - i=BN_num_bits_word(d); - assert((i == BN_BITS2) || (h <= (BN_ULONG)1<<i)); - - i=BN_BITS2-i; - if (h >= d) h-=d; - - if (i) - { - d<<=i; - h=(h<<i)|(l>>(BN_BITS2-i)); - l<<=i; - } - dh=(d&BN_MASK2h)>>BN_BITS4; - dl=(d&BN_MASK2l); - for (;;) - { - if ((h>>BN_BITS4) == dh) - q=BN_MASK2l; - else - q=h/dh; - - th=q*dh; - tl=dl*q; - for (;;) - { - t=h-th; - if ((t&BN_MASK2h) || - ((tl) <= ( - (t<<BN_BITS4)| - ((l&BN_MASK2h)>>BN_BITS4)))) - break; - q--; - th-=dh; - tl-=dl; - } - t=(tl>>BN_BITS4); - tl=(tl<<BN_BITS4)&BN_MASK2h; - th+=t; - - if (l < tl) th++; - l-=tl; - if (h < th) - { - h+=d; - q--; - } - h-=th; - - if (--count == 0) break; - - ret=q<<BN_BITS4; - h=((h<<BN_BITS4)|(l>>BN_BITS4))&BN_MASK2; - l=(l&BN_MASK2l)<<BN_BITS4; - } - ret|=q; - return(ret); - } -#endif /* !defined(BN_LLONG) && defined(BN_DIV2W) */ - -#ifdef BN_LLONG -BN_ULONG bn_add_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b, int n) - { - BN_ULLONG ll=0; - - assert(n >= 0); - if (n <= 0) return((BN_ULONG)0); - -#ifndef OPENSSL_SMALL_FOOTPRINT - while (n&~3) - { - ll+=(BN_ULLONG)a[0]+b[0]; - r[0]=(BN_ULONG)ll&BN_MASK2; - ll>>=BN_BITS2; - ll+=(BN_ULLONG)a[1]+b[1]; - r[1]=(BN_ULONG)ll&BN_MASK2; - ll>>=BN_BITS2; - ll+=(BN_ULLONG)a[2]+b[2]; - r[2]=(BN_ULONG)ll&BN_MASK2; - ll>>=BN_BITS2; - ll+=(BN_ULLONG)a[3]+b[3]; - r[3]=(BN_ULONG)ll&BN_MASK2; - ll>>=BN_BITS2; - a+=4; b+=4; r+=4; n-=4; - } -#endif - while (n) - { - ll+=(BN_ULLONG)a[0]+b[0]; - r[0]=(BN_ULONG)ll&BN_MASK2; - ll>>=BN_BITS2; - a++; b++; r++; n--; - } - return((BN_ULONG)ll); - } -#else /* !BN_LLONG */ -BN_ULONG bn_add_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b, int n) - { - BN_ULONG c,l,t; - - assert(n >= 0); - if (n <= 0) return((BN_ULONG)0); - - c=0; -#ifndef OPENSSL_SMALL_FOOTPRINT - while (n&~3) - { - t=a[0]; - t=(t+c)&BN_MASK2; - c=(t < c); - l=(t+b[0])&BN_MASK2; - c+=(l < t); - r[0]=l; - t=a[1]; - t=(t+c)&BN_MASK2; - c=(t < c); - l=(t+b[1])&BN_MASK2; - c+=(l < t); - r[1]=l; - t=a[2]; - t=(t+c)&BN_MASK2; - c=(t < c); - l=(t+b[2])&BN_MASK2; - c+=(l < t); - r[2]=l; - t=a[3]; - t=(t+c)&BN_MASK2; - c=(t < c); - l=(t+b[3])&BN_MASK2; - c+=(l < t); - r[3]=l; - a+=4; b+=4; r+=4; n-=4; - } -#endif - while(n) - { - t=a[0]; - t=(t+c)&BN_MASK2; - c=(t < c); - l=(t+b[0])&BN_MASK2; - c+=(l < t); - r[0]=l; - a++; b++; r++; n--; - } - return((BN_ULONG)c); - } -#endif /* !BN_LLONG */ - -BN_ULONG bn_sub_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b, int n) - { - BN_ULONG t1,t2; - int c=0; - - assert(n >= 0); - if (n <= 0) return((BN_ULONG)0); - -#ifndef OPENSSL_SMALL_FOOTPRINT - while (n&~3) - { - t1=a[0]; t2=b[0]; - r[0]=(t1-t2-c)&BN_MASK2; - if (t1 != t2) c=(t1 < t2); - t1=a[1]; t2=b[1]; - r[1]=(t1-t2-c)&BN_MASK2; - if (t1 != t2) c=(t1 < t2); - t1=a[2]; t2=b[2]; - r[2]=(t1-t2-c)&BN_MASK2; - if (t1 != t2) c=(t1 < t2); - t1=a[3]; t2=b[3]; - r[3]=(t1-t2-c)&BN_MASK2; - if (t1 != t2) c=(t1 < t2); - a+=4; b+=4; r+=4; n-=4; - } -#endif - while (n) - { - t1=a[0]; t2=b[0]; - r[0]=(t1-t2-c)&BN_MASK2; - if (t1 != t2) c=(t1 < t2); - a++; b++; r++; n--; - } - return(c); - } - -#if defined(BN_MUL_COMBA) && !defined(OPENSSL_SMALL_FOOTPRINT) - -#undef bn_mul_comba8 -#undef bn_mul_comba4 -#undef bn_sqr_comba8 -#undef bn_sqr_comba4 - -/* mul_add_c(a,b,c0,c1,c2) -- c+=a*b for three word number c=(c2,c1,c0) */ -/* mul_add_c2(a,b,c0,c1,c2) -- c+=2*a*b for three word number c=(c2,c1,c0) */ -/* sqr_add_c(a,i,c0,c1,c2) -- c+=a[i]^2 for three word number c=(c2,c1,c0) */ -/* sqr_add_c2(a,i,c0,c1,c2) -- c+=2*a[i]*a[j] for three word number c=(c2,c1,c0) */ - -#ifdef BN_LLONG -#define mul_add_c(a,b,c0,c1,c2) \ - t=(BN_ULLONG)a*b; \ - t1=(BN_ULONG)Lw(t); \ - t2=(BN_ULONG)Hw(t); \ - c0=(c0+t1)&BN_MASK2; if ((c0) < t1) t2++; \ - c1=(c1+t2)&BN_MASK2; if ((c1) < t2) c2++; - -#define mul_add_c2(a,b,c0,c1,c2) \ - t=(BN_ULLONG)a*b; \ - tt=(t+t)&BN_MASK; \ - if (tt < t) c2++; \ - t1=(BN_ULONG)Lw(tt); \ - t2=(BN_ULONG)Hw(tt); \ - c0=(c0+t1)&BN_MASK2; \ - if ((c0 < t1) && (((++t2)&BN_MASK2) == 0)) c2++; \ - c1=(c1+t2)&BN_MASK2; if ((c1) < t2) c2++; - -#define sqr_add_c(a,i,c0,c1,c2) \ - t=(BN_ULLONG)a[i]*a[i]; \ - t1=(BN_ULONG)Lw(t); \ - t2=(BN_ULONG)Hw(t); \ - c0=(c0+t1)&BN_MASK2; if ((c0) < t1) t2++; \ - c1=(c1+t2)&BN_MASK2; if ((c1) < t2) c2++; - -#define sqr_add_c2(a,i,j,c0,c1,c2) \ - mul_add_c2((a)[i],(a)[j],c0,c1,c2) - -#elif defined(BN_UMULT_LOHI) - -#define mul_add_c(a,b,c0,c1,c2) { \ - BN_ULONG ta=(a),tb=(b); \ - BN_UMULT_LOHI(t1,t2,ta,tb); \ - c0 += t1; t2 += (c0<t1)?1:0; \ - c1 += t2; c2 += (c1<t2)?1:0; \ - } - -#define mul_add_c2(a,b,c0,c1,c2) { \ - BN_ULONG ta=(a),tb=(b),t0; \ - BN_UMULT_LOHI(t0,t1,ta,tb); \ - t2 = t1+t1; c2 += (t2<t1)?1:0; \ - t1 = t0+t0; t2 += (t1<t0)?1:0; \ - c0 += t1; t2 += (c0<t1)?1:0; \ - c1 += t2; c2 += (c1<t2)?1:0; \ - } - -#define sqr_add_c(a,i,c0,c1,c2) { \ - BN_ULONG ta=(a)[i]; \ - BN_UMULT_LOHI(t1,t2,ta,ta); \ - c0 += t1; t2 += (c0<t1)?1:0; \ - c1 += t2; c2 += (c1<t2)?1:0; \ - } - -#define sqr_add_c2(a,i,j,c0,c1,c2) \ - mul_add_c2((a)[i],(a)[j],c0,c1,c2) - -#elif defined(BN_UMULT_HIGH) - -#define mul_add_c(a,b,c0,c1,c2) { \ - BN_ULONG ta=(a),tb=(b); \ - t1 = ta * tb; \ - t2 = BN_UMULT_HIGH(ta,tb); \ - c0 += t1; t2 += (c0<t1)?1:0; \ - c1 += t2; c2 += (c1<t2)?1:0; \ - } - -#define mul_add_c2(a,b,c0,c1,c2) { \ - BN_ULONG ta=(a),tb=(b),t0; \ - t1 = BN_UMULT_HIGH(ta,tb); \ - t0 = ta * tb; \ - t2 = t1+t1; c2 += (t2<t1)?1:0; \ - t1 = t0+t0; t2 += (t1<t0)?1:0; \ - c0 += t1; t2 += (c0<t1)?1:0; \ - c1 += t2; c2 += (c1<t2)?1:0; \ - } - -#define sqr_add_c(a,i,c0,c1,c2) { \ - BN_ULONG ta=(a)[i]; \ - t1 = ta * ta; \ - t2 = BN_UMULT_HIGH(ta,ta); \ - c0 += t1; t2 += (c0<t1)?1:0; \ - c1 += t2; c2 += (c1<t2)?1:0; \ - } - -#define sqr_add_c2(a,i,j,c0,c1,c2) \ - mul_add_c2((a)[i],(a)[j],c0,c1,c2) - -#else /* !BN_LLONG */ -#define mul_add_c(a,b,c0,c1,c2) \ - t1=LBITS(a); t2=HBITS(a); \ - bl=LBITS(b); bh=HBITS(b); \ - mul64(t1,t2,bl,bh); \ - c0=(c0+t1)&BN_MASK2; if ((c0) < t1) t2++; \ - c1=(c1+t2)&BN_MASK2; if ((c1) < t2) c2++; - -#define mul_add_c2(a,b,c0,c1,c2) \ - t1=LBITS(a); t2=HBITS(a); \ - bl=LBITS(b); bh=HBITS(b); \ - mul64(t1,t2,bl,bh); \ - if (t2 & BN_TBIT) c2++; \ - t2=(t2+t2)&BN_MASK2; \ - if (t1 & BN_TBIT) t2++; \ - t1=(t1+t1)&BN_MASK2; \ - c0=(c0+t1)&BN_MASK2; \ - if ((c0 < t1) && (((++t2)&BN_MASK2) == 0)) c2++; \ - c1=(c1+t2)&BN_MASK2; if ((c1) < t2) c2++; - -#define sqr_add_c(a,i,c0,c1,c2) \ - sqr64(t1,t2,(a)[i]); \ - c0=(c0+t1)&BN_MASK2; if ((c0) < t1) t2++; \ - c1=(c1+t2)&BN_MASK2; if ((c1) < t2) c2++; - -#define sqr_add_c2(a,i,j,c0,c1,c2) \ - mul_add_c2((a)[i],(a)[j],c0,c1,c2) -#endif /* !BN_LLONG */ - -void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) - { -#ifdef BN_LLONG - BN_ULLONG t; -#else - BN_ULONG bl,bh; -#endif - BN_ULONG t1,t2; - BN_ULONG c1,c2,c3; - - c1=0; - c2=0; - c3=0; - mul_add_c(a[0],b[0],c1,c2,c3); - r[0]=c1; - c1=0; - mul_add_c(a[0],b[1],c2,c3,c1); - mul_add_c(a[1],b[0],c2,c3,c1); - r[1]=c2; - c2=0; - mul_add_c(a[2],b[0],c3,c1,c2); - mul_add_c(a[1],b[1],c3,c1,c2); - mul_add_c(a[0],b[2],c3,c1,c2); - r[2]=c3; - c3=0; - mul_add_c(a[0],b[3],c1,c2,c3); - mul_add_c(a[1],b[2],c1,c2,c3); - mul_add_c(a[2],b[1],c1,c2,c3); - mul_add_c(a[3],b[0],c1,c2,c3); - r[3]=c1; - c1=0; - mul_add_c(a[4],b[0],c2,c3,c1); - mul_add_c(a[3],b[1],c2,c3,c1); - mul_add_c(a[2],b[2],c2,c3,c1); - mul_add_c(a[1],b[3],c2,c3,c1); - mul_add_c(a[0],b[4],c2,c3,c1); - r[4]=c2; - c2=0; - mul_add_c(a[0],b[5],c3,c1,c2); - mul_add_c(a[1],b[4],c3,c1,c2); - mul_add_c(a[2],b[3],c3,c1,c2); - mul_add_c(a[3],b[2],c3,c1,c2); - mul_add_c(a[4],b[1],c3,c1,c2); - mul_add_c(a[5],b[0],c3,c1,c2); - r[5]=c3; - c3=0; - mul_add_c(a[6],b[0],c1,c2,c3); - mul_add_c(a[5],b[1],c1,c2,c3); - mul_add_c(a[4],b[2],c1,c2,c3); - mul_add_c(a[3],b[3],c1,c2,c3); - mul_add_c(a[2],b[4],c1,c2,c3); - mul_add_c(a[1],b[5],c1,c2,c3); - mul_add_c(a[0],b[6],c1,c2,c3); - r[6]=c1; - c1=0; - mul_add_c(a[0],b[7],c2,c3,c1); - mul_add_c(a[1],b[6],c2,c3,c1); - mul_add_c(a[2],b[5],c2,c3,c1); - mul_add_c(a[3],b[4],c2,c3,c1); - mul_add_c(a[4],b[3],c2,c3,c1); - mul_add_c(a[5],b[2],c2,c3,c1); - mul_add_c(a[6],b[1],c2,c3,c1); - mul_add_c(a[7],b[0],c2,c3,c1); - r[7]=c2; - c2=0; - mul_add_c(a[7],b[1],c3,c1,c2); - mul_add_c(a[6],b[2],c3,c1,c2); - mul_add_c(a[5],b[3],c3,c1,c2); - mul_add_c(a[4],b[4],c3,c1,c2); - mul_add_c(a[3],b[5],c3,c1,c2); - mul_add_c(a[2],b[6],c3,c1,c2); - mul_add_c(a[1],b[7],c3,c1,c2); - r[8]=c3; - c3=0; - mul_add_c(a[2],b[7],c1,c2,c3); - mul_add_c(a[3],b[6],c1,c2,c3); - mul_add_c(a[4],b[5],c1,c2,c3); - mul_add_c(a[5],b[4],c1,c2,c3); - mul_add_c(a[6],b[3],c1,c2,c3); - mul_add_c(a[7],b[2],c1,c2,c3); - r[9]=c1; - c1=0; - mul_add_c(a[7],b[3],c2,c3,c1); - mul_add_c(a[6],b[4],c2,c3,c1); - mul_add_c(a[5],b[5],c2,c3,c1); - mul_add_c(a[4],b[6],c2,c3,c1); - mul_add_c(a[3],b[7],c2,c3,c1); - r[10]=c2; - c2=0; - mul_add_c(a[4],b[7],c3,c1,c2); - mul_add_c(a[5],b[6],c3,c1,c2); - mul_add_c(a[6],b[5],c3,c1,c2); - mul_add_c(a[7],b[4],c3,c1,c2); - r[11]=c3; - c3=0; - mul_add_c(a[7],b[5],c1,c2,c3); - mul_add_c(a[6],b[6],c1,c2,c3); - mul_add_c(a[5],b[7],c1,c2,c3); - r[12]=c1; - c1=0; - mul_add_c(a[6],b[7],c2,c3,c1); - mul_add_c(a[7],b[6],c2,c3,c1); - r[13]=c2; - c2=0; - mul_add_c(a[7],b[7],c3,c1,c2); - r[14]=c3; - r[15]=c1; - } - -void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) - { -#ifdef BN_LLONG - BN_ULLONG t; -#else - BN_ULONG bl,bh; -#endif - BN_ULONG t1,t2; - BN_ULONG c1,c2,c3; - - c1=0; - c2=0; - c3=0; - mul_add_c(a[0],b[0],c1,c2,c3); - r[0]=c1; - c1=0; - mul_add_c(a[0],b[1],c2,c3,c1); - mul_add_c(a[1],b[0],c2,c3,c1); - r[1]=c2; - c2=0; - mul_add_c(a[2],b[0],c3,c1,c2); - mul_add_c(a[1],b[1],c3,c1,c2); - mul_add_c(a[0],b[2],c3,c1,c2); - r[2]=c3; - c3=0; - mul_add_c(a[0],b[3],c1,c2,c3); - mul_add_c(a[1],b[2],c1,c2,c3); - mul_add_c(a[2],b[1],c1,c2,c3); - mul_add_c(a[3],b[0],c1,c2,c3); - r[3]=c1; - c1=0; - mul_add_c(a[3],b[1],c2,c3,c1); - mul_add_c(a[2],b[2],c2,c3,c1); - mul_add_c(a[1],b[3],c2,c3,c1); - r[4]=c2; - c2=0; - mul_add_c(a[2],b[3],c3,c1,c2); - mul_add_c(a[3],b[2],c3,c1,c2); - r[5]=c3; - c3=0; - mul_add_c(a[3],b[3],c1,c2,c3); - r[6]=c1; - r[7]=c2; - } - -void bn_sqr_comba8(BN_ULONG *r, const BN_ULONG *a) - { -#ifdef BN_LLONG - BN_ULLONG t,tt; -#else - BN_ULONG bl,bh; -#endif - BN_ULONG t1,t2; - BN_ULONG c1,c2,c3; - - c1=0; - c2=0; - c3=0; - sqr_add_c(a,0,c1,c2,c3); - r[0]=c1; - c1=0; - sqr_add_c2(a,1,0,c2,c3,c1); - r[1]=c2; - c2=0; - sqr_add_c(a,1,c3,c1,c2); - sqr_add_c2(a,2,0,c3,c1,c2); - r[2]=c3; - c3=0; - sqr_add_c2(a,3,0,c1,c2,c3); - sqr_add_c2(a,2,1,c1,c2,c3); - r[3]=c1; - c1=0; - sqr_add_c(a,2,c2,c3,c1); - sqr_add_c2(a,3,1,c2,c3,c1); - sqr_add_c2(a,4,0,c2,c3,c1); - r[4]=c2; - c2=0; - sqr_add_c2(a,5,0,c3,c1,c2); - sqr_add_c2(a,4,1,c3,c1,c2); - sqr_add_c2(a,3,2,c3,c1,c2); - r[5]=c3; - c3=0; - sqr_add_c(a,3,c1,c2,c3); - sqr_add_c2(a,4,2,c1,c2,c3); - sqr_add_c2(a,5,1,c1,c2,c3); - sqr_add_c2(a,6,0,c1,c2,c3); - r[6]=c1; - c1=0; - sqr_add_c2(a,7,0,c2,c3,c1); - sqr_add_c2(a,6,1,c2,c3,c1); - sqr_add_c2(a,5,2,c2,c3,c1); - sqr_add_c2(a,4,3,c2,c3,c1); - r[7]=c2; - c2=0; - sqr_add_c(a,4,c3,c1,c2); - sqr_add_c2(a,5,3,c3,c1,c2); - sqr_add_c2(a,6,2,c3,c1,c2); - sqr_add_c2(a,7,1,c3,c1,c2); - r[8]=c3; - c3=0; - sqr_add_c2(a,7,2,c1,c2,c3); - sqr_add_c2(a,6,3,c1,c2,c3); - sqr_add_c2(a,5,4,c1,c2,c3); - r[9]=c1; - c1=0; - sqr_add_c(a,5,c2,c3,c1); - sqr_add_c2(a,6,4,c2,c3,c1); - sqr_add_c2(a,7,3,c2,c3,c1); - r[10]=c2; - c2=0; - sqr_add_c2(a,7,4,c3,c1,c2); - sqr_add_c2(a,6,5,c3,c1,c2); - r[11]=c3; - c3=0; - sqr_add_c(a,6,c1,c2,c3); - sqr_add_c2(a,7,5,c1,c2,c3); - r[12]=c1; - c1=0; - sqr_add_c2(a,7,6,c2,c3,c1); - r[13]=c2; - c2=0; - sqr_add_c(a,7,c3,c1,c2); - r[14]=c3; - r[15]=c1; - } - -void bn_sqr_comba4(BN_ULONG *r, const BN_ULONG *a) - { -#ifdef BN_LLONG - BN_ULLONG t,tt; -#else - BN_ULONG bl,bh; -#endif - BN_ULONG t1,t2; - BN_ULONG c1,c2,c3; - - c1=0; - c2=0; - c3=0; - sqr_add_c(a,0,c1,c2,c3); - r[0]=c1; - c1=0; - sqr_add_c2(a,1,0,c2,c3,c1); - r[1]=c2; - c2=0; - sqr_add_c(a,1,c3,c1,c2); - sqr_add_c2(a,2,0,c3,c1,c2); - r[2]=c3; - c3=0; - sqr_add_c2(a,3,0,c1,c2,c3); - sqr_add_c2(a,2,1,c1,c2,c3); - r[3]=c1; - c1=0; - sqr_add_c(a,2,c2,c3,c1); - sqr_add_c2(a,3,1,c2,c3,c1); - r[4]=c2; - c2=0; - sqr_add_c2(a,3,2,c3,c1,c2); - r[5]=c3; - c3=0; - sqr_add_c(a,3,c1,c2,c3); - r[6]=c1; - r[7]=c2; - } - -#ifdef OPENSSL_NO_ASM -#ifdef OPENSSL_BN_ASM_MONT -#include <alloca.h> -/* - * This is essentially reference implementation, which may or may not - * result in performance improvement. E.g. on IA-32 this routine was - * observed to give 40% faster rsa1024 private key operations and 10% - * faster rsa4096 ones, while on AMD64 it improves rsa1024 sign only - * by 10% and *worsens* rsa4096 sign by 15%. Once again, it's a - * reference implementation, one to be used as starting point for - * platform-specific assembler. Mentioned numbers apply to compiler - * generated code compiled with and without -DOPENSSL_BN_ASM_MONT and - * can vary not only from platform to platform, but even for compiler - * versions. Assembler vs. assembler improvement coefficients can - * [and are known to] differ and are to be documented elsewhere. - */ -int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0p, int num) - { - BN_ULONG c0,c1,ml,*tp,n0; -#ifdef mul64 - BN_ULONG mh; -#endif - volatile BN_ULONG *vp; - int i=0,j; - -#if 0 /* template for platform-specific implementation */ - if (ap==bp) return bn_sqr_mont(rp,ap,np,n0p,num); -#endif - vp = tp = alloca((num+2)*sizeof(BN_ULONG)); - - n0 = *n0p; - - c0 = 0; - ml = bp[0]; -#ifdef mul64 - mh = HBITS(ml); - ml = LBITS(ml); - for (j=0;j<num;++j) - mul(tp[j],ap[j],ml,mh,c0); -#else - for (j=0;j<num;++j) - mul(tp[j],ap[j],ml,c0); -#endif - - tp[num] = c0; - tp[num+1] = 0; - goto enter; - - for(i=0;i<num;i++) - { - c0 = 0; - ml = bp[i]; -#ifdef mul64 - mh = HBITS(ml); - ml = LBITS(ml); - for (j=0;j<num;++j) - mul_add(tp[j],ap[j],ml,mh,c0); -#else - for (j=0;j<num;++j) - mul_add(tp[j],ap[j],ml,c0); -#endif - c1 = (tp[num] + c0)&BN_MASK2; - tp[num] = c1; - tp[num+1] = (c1<c0?1:0); - enter: - c1 = tp[0]; - ml = (c1*n0)&BN_MASK2; - c0 = 0; -#ifdef mul64 - mh = HBITS(ml); - ml = LBITS(ml); - mul_add(c1,np[0],ml,mh,c0); -#else - mul_add(c1,ml,np[0],c0); -#endif - for(j=1;j<num;j++) - { - c1 = tp[j]; -#ifdef mul64 - mul_add(c1,np[j],ml,mh,c0); -#else - mul_add(c1,ml,np[j],c0); -#endif - tp[j-1] = c1&BN_MASK2; - } - c1 = (tp[num] + c0)&BN_MASK2; - tp[num-1] = c1; - tp[num] = tp[num+1] + (c1<c0?1:0); - } - - if (tp[num]!=0 || tp[num-1]>=np[num-1]) - { - c0 = bn_sub_words(rp,tp,np,num); - if (tp[num]!=0 || c0==0) - { - for(i=0;i<num+2;i++) vp[i] = 0; - return 1; - } - } - for(i=0;i<num;i++) rp[i] = tp[i], vp[i] = 0; - vp[num] = 0; - vp[num+1] = 0; - return 1; - } -#else -/* - * Return value of 0 indicates that multiplication/convolution was not - * performed to signal the caller to fall down to alternative/original - * code-path. - */ -int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num) -{ return 0; } -#endif /* OPENSSL_BN_ASM_MONT */ -#endif - -#else /* !BN_MUL_COMBA */ - -/* hmm... is it faster just to do a multiply? */ -#undef bn_sqr_comba4 -void bn_sqr_comba4(BN_ULONG *r, const BN_ULONG *a) - { - BN_ULONG t[8]; - bn_sqr_normal(r,a,4,t); - } - -#undef bn_sqr_comba8 -void bn_sqr_comba8(BN_ULONG *r, const BN_ULONG *a) - { - BN_ULONG t[16]; - bn_sqr_normal(r,a,8,t); - } - -void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) - { - r[4]=bn_mul_words( &(r[0]),a,4,b[0]); - r[5]=bn_mul_add_words(&(r[1]),a,4,b[1]); - r[6]=bn_mul_add_words(&(r[2]),a,4,b[2]); - r[7]=bn_mul_add_words(&(r[3]),a,4,b[3]); - } - -void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) - { - r[ 8]=bn_mul_words( &(r[0]),a,8,b[0]); - r[ 9]=bn_mul_add_words(&(r[1]),a,8,b[1]); - r[10]=bn_mul_add_words(&(r[2]),a,8,b[2]); - r[11]=bn_mul_add_words(&(r[3]),a,8,b[3]); - r[12]=bn_mul_add_words(&(r[4]),a,8,b[4]); - r[13]=bn_mul_add_words(&(r[5]),a,8,b[5]); - r[14]=bn_mul_add_words(&(r[6]),a,8,b[6]); - r[15]=bn_mul_add_words(&(r[7]),a,8,b[7]); - } - -#ifdef OPENSSL_NO_ASM -#ifdef OPENSSL_BN_ASM_MONT -#include <alloca.h> -int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0p, int num) - { - BN_ULONG c0,c1,*tp,n0=*n0p; - volatile BN_ULONG *vp; - int i=0,j; - - vp = tp = alloca((num+2)*sizeof(BN_ULONG)); - - for(i=0;i<=num;i++) tp[i]=0; - - for(i=0;i<num;i++) - { - c0 = bn_mul_add_words(tp,ap,num,bp[i]); - c1 = (tp[num] + c0)&BN_MASK2; - tp[num] = c1; - tp[num+1] = (c1<c0?1:0); - - c0 = bn_mul_add_words(tp,np,num,tp[0]*n0); - c1 = (tp[num] + c0)&BN_MASK2; - tp[num] = c1; - tp[num+1] += (c1<c0?1:0); - for(j=0;j<=num;j++) tp[j]=tp[j+1]; - } - - if (tp[num]!=0 || tp[num-1]>=np[num-1]) - { - c0 = bn_sub_words(rp,tp,np,num); - if (tp[num]!=0 || c0==0) - { - for(i=0;i<num+2;i++) vp[i] = 0; - return 1; - } - } - for(i=0;i<num;i++) rp[i] = tp[i], vp[i] = 0; - vp[num] = 0; - vp[num+1] = 0; - return 1; - } -#else -int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num) -{ return 0; } -#endif /* OPENSSL_BN_ASM_MONT */ -#endif - -#endif /* !BN_MUL_COMBA */ |