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Diffstat (limited to 'src/lib/libcrypto/bn/old/bn_mul.c.works')
-rw-r--r-- | src/lib/libcrypto/bn/old/bn_mul.c.works | 219 |
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diff --git a/src/lib/libcrypto/bn/old/bn_mul.c.works b/src/lib/libcrypto/bn/old/bn_mul.c.works index 6d565d44a2..e69de29bb2 100644 --- a/src/lib/libcrypto/bn/old/bn_mul.c.works +++ b/src/lib/libcrypto/bn/old/bn_mul.c.works | |||
@@ -1,219 +0,0 @@ | |||
1 | /* crypto/bn/bn_mul.c */ | ||
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
3 | * All rights reserved. | ||
4 | * | ||
5 | * This package is an SSL implementation written | ||
6 | * by Eric Young (eay@cryptsoft.com). | ||
7 | * The implementation was written so as to conform with Netscapes SSL. | ||
8 | * | ||
9 | * This library is free for commercial and non-commercial use as long as | ||
10 | * the following conditions are aheared to. The following conditions | ||
11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
13 | * included with this distribution is covered by the same copyright terms | ||
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
15 | * | ||
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
17 | * the code are not to be removed. | ||
18 | * If this package is used in a product, Eric Young should be given attribution | ||
19 | * as the author of the parts of the library used. | ||
20 | * This can be in the form of a textual message at program startup or | ||
21 | * in documentation (online or textual) provided with the package. | ||
22 | * | ||
23 | * Redistribution and use in source and binary forms, with or without | ||
24 | * modification, are permitted provided that the following conditions | ||
25 | * are met: | ||
26 | * 1. Redistributions of source code must retain the copyright | ||
27 | * notice, this list of conditions and the following disclaimer. | ||
28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
29 | * notice, this list of conditions and the following disclaimer in the | ||
30 | * documentation and/or other materials provided with the distribution. | ||
31 | * 3. All advertising materials mentioning features or use of this software | ||
32 | * must display the following acknowledgement: | ||
33 | * "This product includes cryptographic software written by | ||
34 | * Eric Young (eay@cryptsoft.com)" | ||
35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
36 | * being used are not cryptographic related :-). | ||
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
38 | * the apps directory (application code) you must include an acknowledgement: | ||
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
40 | * | ||
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
51 | * SUCH DAMAGE. | ||
52 | * | ||
53 | * The licence and distribution terms for any publically available version or | ||
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
55 | * copied and put under another distribution licence | ||
56 | * [including the GNU Public Licence.] | ||
57 | */ | ||
58 | |||
59 | #include <stdio.h> | ||
60 | #include "cryptlib.h" | ||
61 | #include "bn_lcl.h" | ||
62 | |||
63 | int bn_mm(BIGNUM *m,BIGNUM *A,BIGNUM *B, BIGNUM *sk,BN_CTX *ctx); | ||
64 | |||
65 | /* r must be different to a and b */ | ||
66 | int BN_mul(r, a, b) | ||
67 | BIGNUM *r; | ||
68 | BIGNUM *a; | ||
69 | BIGNUM *b; | ||
70 | { | ||
71 | BN_ULONG *ap,*bp,*rp; | ||
72 | BIGNUM *sk; | ||
73 | int i,n,ret; | ||
74 | int max,al,bl; | ||
75 | BN_CTX ctx; | ||
76 | |||
77 | bn_check_top(a); | ||
78 | bn_check_top(b); | ||
79 | |||
80 | al=a->top; | ||
81 | bl=b->top; | ||
82 | if ((al == 0) || (bl == 0)) | ||
83 | { | ||
84 | r->top=0; | ||
85 | return(1); | ||
86 | } | ||
87 | #ifdef BN_MUL_DEBUG | ||
88 | printf("BN_mul(%d,%d)\n",a->top,b->top); | ||
89 | #endif | ||
90 | |||
91 | #ifdef BN_RECURSION | ||
92 | if ( (bn_limit_bits > 0) && | ||
93 | (bl > bn_limit_num) && (al > bn_limit_num)) | ||
94 | { | ||
95 | n=(BN_num_bits_word(al|bl)-bn_limit_bits); | ||
96 | n*=2; | ||
97 | sk=(BIGNUM *)Malloc(sizeof(BIGNUM)*n); | ||
98 | memset(sk,0,sizeof(BIGNUM)*n); | ||
99 | memset(&ctx,0,sizeof(ctx)); | ||
100 | |||
101 | ret=bn_mm(r,a,b,&(sk[0]),&ctx); | ||
102 | for (i=0; i<n; i+=2) | ||
103 | { | ||
104 | BN_clear_free(&sk[i]); | ||
105 | BN_clear_free(&sk[i+1]); | ||
106 | } | ||
107 | Free(sk); | ||
108 | return(ret); | ||
109 | } | ||
110 | #endif | ||
111 | |||
112 | max=(al+bl); | ||
113 | if (bn_wexpand(r,max) == NULL) return(0); | ||
114 | r->top=max; | ||
115 | r->neg=a->neg^b->neg; | ||
116 | ap=a->d; | ||
117 | bp=b->d; | ||
118 | rp=r->d; | ||
119 | |||
120 | #ifdef BN_RECURSION | ||
121 | if ((al == bl) && (al == 8)) | ||
122 | { | ||
123 | bn_mul_comba8(rp,ap,bp); | ||
124 | } | ||
125 | else | ||
126 | #endif | ||
127 | { | ||
128 | rp[al]=bn_mul_words(rp,ap,al,*(bp++)); | ||
129 | rp++; | ||
130 | for (i=1; i<bl; i++) | ||
131 | { | ||
132 | rp[al]=bn_mul_add_words(rp,ap,al,*(bp++)); | ||
133 | rp++; | ||
134 | } | ||
135 | } | ||
136 | if ((max > 0) && (r->d[max-1] == 0)) r->top--; | ||
137 | return(1); | ||
138 | } | ||
139 | |||
140 | #ifdef BN_RECURSION | ||
141 | |||
142 | #define ahal (sk[0]) | ||
143 | #define blbh (sk[1]) | ||
144 | |||
145 | /* r must be different to a and b */ | ||
146 | int bn_mm(m, A, B, sk,ctx) | ||
147 | BIGNUM *m,*A,*B; | ||
148 | BIGNUM *sk; | ||
149 | BN_CTX *ctx; | ||
150 | { | ||
151 | int n,num,sqr=0; | ||
152 | int an,bn; | ||
153 | BIGNUM ah,al,bh,bl; | ||
154 | |||
155 | an=A->top; | ||
156 | bn=B->top; | ||
157 | #ifdef BN_MUL_DEBUG | ||
158 | printf("bn_mm(%d,%d)\n",A->top,B->top); | ||
159 | #endif | ||
160 | |||
161 | if (A == B) sqr=1; | ||
162 | num=(an>bn)?an:bn; | ||
163 | n=(num+1)/2; | ||
164 | /* Are going to now chop things into 'num' word chunks. */ | ||
165 | |||
166 | BN_init(&ah); | ||
167 | BN_init(&al); | ||
168 | BN_init(&bh); | ||
169 | BN_init(&bl); | ||
170 | |||
171 | bn_set_low (&al,A,n); | ||
172 | bn_set_high(&ah,A,n); | ||
173 | bn_set_low (&bl,B,n); | ||
174 | bn_set_high(&bh,B,n); | ||
175 | |||
176 | BN_sub(&ahal,&ah,&al); | ||
177 | BN_sub(&blbh,&bl,&bh); | ||
178 | |||
179 | if (num <= (bn_limit_num+bn_limit_num)) | ||
180 | { | ||
181 | BN_mul(m,&ahal,&blbh); | ||
182 | if (sqr) | ||
183 | { | ||
184 | BN_sqr(&ahal,&al,ctx); | ||
185 | BN_sqr(&blbh,&ah,ctx); | ||
186 | } | ||
187 | else | ||
188 | { | ||
189 | BN_mul(&ahal,&al,&bl); | ||
190 | BN_mul(&blbh,&ah,&bh); | ||
191 | } | ||
192 | } | ||
193 | else | ||
194 | { | ||
195 | bn_mm(m,&ahal,&blbh,&(sk[2]),ctx); | ||
196 | bn_mm(&ahal,&al,&bl,&(sk[2]),ctx); | ||
197 | bn_mm(&blbh,&ah,&bh,&(sk[2]),ctx); | ||
198 | } | ||
199 | |||
200 | BN_add(m,m,&ahal); | ||
201 | BN_add(m,m,&blbh); | ||
202 | |||
203 | BN_lshift(m,m,n*BN_BITS2); | ||
204 | BN_lshift(&blbh,&blbh,n*BN_BITS2*2); | ||
205 | |||
206 | BN_add(m,m,&ahal); | ||
207 | BN_add(m,m,&blbh); | ||
208 | |||
209 | m->neg=A->neg^B->neg; | ||
210 | return(1); | ||
211 | } | ||
212 | #undef ahal (sk[0]) | ||
213 | #undef blbh (sk[1]) | ||
214 | |||
215 | #include "bn_low.c" | ||
216 | #include "bn_high.c" | ||
217 | #include "f.c" | ||
218 | |||
219 | #endif | ||