1 /* crypto/bn/bntest.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
63 #include "openssl/e_os.h"
65 #include <openssl/bio.h>
66 #include <openssl/bn.h>
67 #include <openssl/rand.h>
68 #include <openssl/x509.h>
69 #include <openssl/err.h>
72 #include "../bio/bss_file.c"
75 const int num0 = 100; /* number of tests */
76 const int num1 = 50; /* additional tests for some functions */
77 const int num2 = 5; /* number of tests for slow functions */
79 int test_add(BIO *bp);
80 int test_sub(BIO *bp);
81 int test_lshift1(BIO *bp);
82 int test_lshift(BIO *bp,BN_CTX *ctx,BIGNUM *a_);
83 int test_rshift1(BIO *bp);
84 int test_rshift(BIO *bp,BN_CTX *ctx);
85 int test_div(BIO *bp,BN_CTX *ctx);
86 int test_div_recp(BIO *bp,BN_CTX *ctx);
87 int test_mul(BIO *bp);
88 int test_sqr(BIO *bp,BN_CTX *ctx);
89 int test_mont(BIO *bp,BN_CTX *ctx);
90 int test_mod(BIO *bp,BN_CTX *ctx);
91 int test_mod_mul(BIO *bp,BN_CTX *ctx);
92 int test_mod_exp(BIO *bp,BN_CTX *ctx);
93 int test_exp(BIO *bp,BN_CTX *ctx);
102 static unsigned char lst[]="\xC6\x4F\x43\x04\x2A\xEA\xCA\x6E\x58\x36\x80\x5B\xE8\xC9"
103 "\x9B\x04\x5D\x48\x36\xC2\xFD\x16\xC9\x64\xF0";
105 static const char rnd_seed[] = "string to make the random number generator think it has entropy";
107 static void message(BIO *out, char *m)
109 fprintf(stderr, "test %s\n", m);
110 #if defined(linux) || defined(__FreeBSD__) /* can we use GNU bc features? */
111 BIO_puts(out, "print \"test ");
113 BIO_puts(out, "\\n\"\n");
117 int main(int argc, char *argv[])
125 RAND_seed(rnd_seed, sizeof rnd_seed); /* or BN_rand may fail, and we don't
126 * even check its return value
127 * (which we should) */
133 if (strcmp(*argv,"-results") == 0)
135 else if (strcmp(*argv,"-out") == 0)
137 if (--argc < 1) break;
146 if (ctx == NULL) exit(1);
148 out=BIO_new(BIO_s_file());
149 if (out == NULL) exit(1);
152 BIO_set_fp(out,stdout,BIO_NOCLOSE);
156 if (!BIO_write_filename(out,outfile))
164 BIO_puts(out,"obase=16\nibase=16\n");
167 message(out,"BN_add");
168 if (!test_add(out)) goto err;
171 message(out,"BN_sub");
172 if (!test_sub(out)) goto err;
175 message(out,"BN_lshift1");
176 if (!test_lshift1(out)) goto err;
179 message(out,"BN_lshift (fixed)");
180 if (!test_lshift(out,ctx,BN_bin2bn(lst,sizeof(lst)-1,NULL)))
184 message(out,"BN_lshift");
185 if (!test_lshift(out,ctx,NULL)) goto err;
188 message(out,"BN_rshift1");
189 if (!test_rshift1(out)) goto err;
192 message(out,"BN_rshift");
193 if (!test_rshift(out,ctx)) goto err;
196 message(out,"BN_sqr");
197 if (!test_sqr(out,ctx)) goto err;
200 message(out,"BN_mul");
201 if (!test_mul(out)) goto err;
204 message(out,"BN_div");
205 if (!test_div(out,ctx)) goto err;
208 message(out,"BN_div_recp");
209 if (!test_div_recp(out,ctx)) goto err;
212 message(out,"BN_mod");
213 if (!test_mod(out,ctx)) goto err;
216 message(out,"BN_mod_mul");
217 if (!test_mod_mul(out,ctx)) goto err;
220 message(out,"BN_mont");
221 if (!test_mont(out,ctx)) goto err;
225 message(out,"BN_mod_exp");
226 if (!test_mod_exp(out,ctx)) goto err;
229 message(out,"BN_exp");
230 if (!test_exp(out,ctx)) goto err;
239 BIO_puts(out,"1\n"); /* make sure the Perl script fed by bc notices
240 * the failure, see test_bn in test/Makefile.ssl*/
242 ERR_load_crypto_strings();
243 ERR_print_errors_fp(stderr);
248 int test_add(BIO *bp)
259 for (i=0; i<num0; i++)
261 BN_rand(&b,450+i,0,0);
265 for (j=0; j<10000; j++)
286 fprintf(stderr,"Add test failed!\n");
296 int test_sub(BIO *bp)
306 for (i=0; i<num0+num1; i++)
312 if (BN_set_bit(&a,i)==0) return(0);
317 BN_rand(&b,400+i-num1,0,0);
322 for (j=0; j<10000; j++)
341 fprintf(stderr,"Subtract test failed!\n");
351 int test_div(BIO *bp, BN_CTX *ctx)
363 for (i=0; i<num0+num1; i++)
373 BN_rand(&b,50+3*(i-num1),0,0);
377 for (j=0; j<100; j++)
378 BN_div(&d,&c,&a,&b,ctx);
379 BN_div(&d,&c,&a,&b,ctx);
402 BN_mul(&e,&d,&b,ctx);
407 fprintf(stderr,"Division test failed!\n");
419 int test_div_recp(BIO *bp, BN_CTX *ctx)
426 BN_RECP_CTX_init(&recp);
433 for (i=0; i<num0+num1; i++)
443 BN_rand(&b,50+3*(i-num1),0,0);
446 BN_RECP_CTX_set(&recp,&b,ctx);
448 for (j=0; j<100; j++)
449 BN_div_recp(&d,&c,&a,&recp,ctx);
450 BN_div_recp(&d,&c,&a,&recp,ctx);
473 BN_mul(&e,&d,&b,ctx);
478 fprintf(stderr,"Reciprocal division test failed!\n");
479 fprintf(stderr,"a=");
480 BN_print_fp(stderr,&a);
481 fprintf(stderr,"\nb=");
482 BN_print_fp(stderr,&b);
483 fprintf(stderr,"\n");
492 BN_RECP_CTX_free(&recp);
496 int test_mul(BIO *bp)
510 for (i=0; i<num0+num1; i++)
518 BN_rand(&b,i-num1,0,0);
522 for (j=0; j<100; j++)
523 BN_mul(&c,&a,&b,&ctx);
524 BN_mul(&c,&a,&b,&ctx);
537 BN_div(&d,&e,&c,&a,&ctx);
539 if(!BN_is_zero(&d) || !BN_is_zero(&e))
541 fprintf(stderr,"Multiplication test failed!\n");
554 int test_sqr(BIO *bp, BN_CTX *ctx)
565 for (i=0; i<num0; i++)
567 BN_rand(&a,40+i*10,0,0);
570 for (j=0; j<100; j++)
585 BN_div(&d,&e,&c,&a,ctx);
587 if(!BN_is_zero(&d) || !BN_is_zero(&e))
589 fprintf(stderr,"Square test failed!\n");
600 int test_mont(BIO *bp, BN_CTX *ctx)
616 mont=BN_MONT_CTX_new();
618 BN_rand(&a,100,0,0); /**/
619 BN_rand(&b,100,0,0); /**/
620 for (i=0; i<num2; i++)
622 int bits = (200*(i+1))/num2;
626 BN_rand(&n,bits,0,1);
627 BN_MONT_CTX_set(mont,&n,ctx);
629 BN_to_montgomery(&A,&a,mont,ctx);
630 BN_to_montgomery(&B,&b,mont,ctx);
633 for (j=0; j<100; j++)
634 BN_mod_mul_montgomery(&c,&A,&B,mont,ctx);/**/
635 BN_mod_mul_montgomery(&c,&A,&B,mont,ctx);/**/
636 BN_from_montgomery(&A,&c,mont,ctx);/**/
642 fprintf(stderr,"%d * %d %% %d\n",
645 BN_num_bits(mont->N));
651 BN_print(bp,&(mont->N));
657 BN_mod_mul(&d,&a,&b,&n,ctx);
661 fprintf(stderr,"Montgomery multiplication test failed!\n");
665 BN_MONT_CTX_free(mont);
676 int test_mod(BIO *bp, BN_CTX *ctx)
678 BIGNUM *a,*b,*c,*d,*e;
688 BN_rand(a,1024,0,0); /**/
689 for (i=0; i<num0; i++)
691 BN_rand(b,450+i*10,0,0); /**/
695 for (j=0; j<100; j++)
696 BN_mod(c,a,b,ctx);/**/
697 BN_mod(c,a,b,ctx);/**/
714 fprintf(stderr,"Modulo test failed!\n");
726 int test_mod_mul(BIO *bp, BN_CTX *ctx)
728 BIGNUM *a,*b,*c,*d,*e;
737 BN_rand(c,1024,0,0); /**/
738 for (i=0; i<num0; i++)
740 BN_rand(a,475+i*10,0,0); /**/
741 BN_rand(b,425+i*11,0,0); /**/
745 for (j=0; j<100; j++)
746 BN_mod_mul(d,a,b,c,ctx);*/ /**/
748 if (!BN_mod_mul(e,a,b,c,ctx))
752 while ((l=ERR_get_error()))
753 fprintf(stderr,"ERROR:%s\n",
754 ERR_error_string(l,NULL));
766 if ((a->neg ^ b->neg) && !BN_is_zero(e))
768 /* If (a*b) % c is negative, c must be added
769 * in order to obtain the normalized remainder
770 * (new with OpenSSL 0.9.7, previous versions of
771 * BN_mod_mul could generate negative results)
786 fprintf(stderr,"Modulo multiply test failed!\n");
787 ERR_print_errors_fp(stderr);
799 int test_mod_exp(BIO *bp, BN_CTX *ctx)
801 BIGNUM *a,*b,*c,*d,*e;
810 BN_rand(c,30,0,1); /* must be odd for montgomery */
811 for (i=0; i<num2; i++)
813 BN_rand(a,20+i*5,0,0); /**/
814 BN_rand(b,2+i,0,0); /**/
816 BN_kronecker(a,b,ctx);
818 if (!BN_mod_exp(d,a,b,c,ctx))
840 fprintf(stderr,"Modulo exponentiation test failed!\n");
852 int test_exp(BIO *bp, BN_CTX *ctx)
854 BIGNUM *a,*b,*d,*e,*one;
864 for (i=0; i<num2; i++)
866 BN_rand(a,20+i*5,0,0); /**/
867 BN_rand(b,2+i,0,0); /**/
869 if (!BN_exp(d,a,b,ctx))
885 for( ; !BN_is_zero(b) ; BN_sub(b,b,one))
890 fprintf(stderr,"Exponentiation test failed!\n");
902 int test_lshift(BIO *bp,BN_CTX *ctx,BIGNUM *a_)
917 BN_rand(a,200,0,0); /**/
920 for (i=0; i<num0; i++)
940 fprintf(stderr,"Left shift test failed!\n");
941 fprintf(stderr,"a=");
942 BN_print_fp(stderr,a);
943 fprintf(stderr,"\nb=");
944 BN_print_fp(stderr,b);
945 fprintf(stderr,"\nc=");
946 BN_print_fp(stderr,c);
947 fprintf(stderr,"\nd=");
948 BN_print_fp(stderr,d);
949 fprintf(stderr,"\n");
960 int test_lshift1(BIO *bp)
969 BN_rand(a,200,0,0); /**/
971 for (i=0; i<num0; i++)
989 fprintf(stderr,"Left shift one test failed!\n");
1001 int test_rshift(BIO *bp,BN_CTX *ctx)
1003 BIGNUM *a,*b,*c,*d,*e;
1013 BN_rand(a,200,0,0); /**/
1015 for (i=0; i<num0; i++)
1031 BN_div(d,e,a,c,ctx);
1035 fprintf(stderr,"Right shift test failed!\n");
1047 int test_rshift1(BIO *bp)
1056 BN_rand(a,200,0,0); /**/
1058 for (i=0; i<num0; i++)
1066 BIO_puts(bp," / 2");
1074 if(!BN_is_zero(c) && !BN_is_one(c))
1076 fprintf(stderr,"Right shift one test failed!\n");
1089 static unsigned int neg=0;
1090 static int sign[8]={0,0,0,1,1,0,1,1};
1092 return(sign[(neg++)%8]);