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| 1 /* crypto/bn/exptest.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 <stdlib.h> | |
| 61 #include <string.h> | |
| 62 | |
| 63 #include "../e_os.h" | |
| 64 | |
| 65 #include <openssl/bio.h> | |
| 66 #include <openssl/bn.h> | |
| 67 #include <openssl/rand.h> | |
| 68 #include <openssl/err.h> | |
| 69 | |
| 70 #define NUM_BITS (BN_BITS*2) | |
| 71 | |
| 72 static const char rnd_seed[] = "string to make the random number generator think
it has entropy"; | |
| 73 | |
| 74 int main(int argc, char *argv[]) | |
| 75 { | |
| 76 BN_CTX *ctx; | |
| 77 BIO *out=NULL; | |
| 78 int i,ret; | |
| 79 unsigned char c; | |
| 80 BIGNUM *r_mont,*r_mont_const,*r_recp,*r_simple,*a,*b,*m; | |
| 81 | |
| 82 RAND_seed(rnd_seed, sizeof rnd_seed); /* or BN_rand may fail, and we don
't | |
| 83 * even check its return value | |
| 84 * (which we should) */ | |
| 85 | |
| 86 ERR_load_BN_strings(); | |
| 87 | |
| 88 ctx=BN_CTX_new(); | |
| 89 if (ctx == NULL) EXIT(1); | |
| 90 r_mont=BN_new(); | |
| 91 r_mont_const=BN_new(); | |
| 92 r_recp=BN_new(); | |
| 93 r_simple=BN_new(); | |
| 94 a=BN_new(); | |
| 95 b=BN_new(); | |
| 96 m=BN_new(); | |
| 97 if ( (r_mont == NULL) || (r_recp == NULL) || | |
| 98 (a == NULL) || (b == NULL)) | |
| 99 goto err; | |
| 100 | |
| 101 out=BIO_new(BIO_s_file()); | |
| 102 | |
| 103 if (out == NULL) EXIT(1); | |
| 104 BIO_set_fp(out,stdout,BIO_NOCLOSE); | |
| 105 | |
| 106 for (i=0; i<200; i++) | |
| 107 { | |
| 108 RAND_bytes(&c,1); | |
| 109 c=(c%BN_BITS)-BN_BITS2; | |
| 110 BN_rand(a,NUM_BITS+c,0,0); | |
| 111 | |
| 112 RAND_bytes(&c,1); | |
| 113 c=(c%BN_BITS)-BN_BITS2; | |
| 114 BN_rand(b,NUM_BITS+c,0,0); | |
| 115 | |
| 116 RAND_bytes(&c,1); | |
| 117 c=(c%BN_BITS)-BN_BITS2; | |
| 118 BN_rand(m,NUM_BITS+c,0,1); | |
| 119 | |
| 120 BN_mod(a,a,m,ctx); | |
| 121 BN_mod(b,b,m,ctx); | |
| 122 | |
| 123 ret=BN_mod_exp_mont(r_mont,a,b,m,ctx,NULL); | |
| 124 if (ret <= 0) | |
| 125 { | |
| 126 printf("BN_mod_exp_mont() problems\n"); | |
| 127 ERR_print_errors(out); | |
| 128 EXIT(1); | |
| 129 } | |
| 130 | |
| 131 ret=BN_mod_exp_recp(r_recp,a,b,m,ctx); | |
| 132 if (ret <= 0) | |
| 133 { | |
| 134 printf("BN_mod_exp_recp() problems\n"); | |
| 135 ERR_print_errors(out); | |
| 136 EXIT(1); | |
| 137 } | |
| 138 | |
| 139 ret=BN_mod_exp_simple(r_simple,a,b,m,ctx); | |
| 140 if (ret <= 0) | |
| 141 { | |
| 142 printf("BN_mod_exp_simple() problems\n"); | |
| 143 ERR_print_errors(out); | |
| 144 EXIT(1); | |
| 145 } | |
| 146 | |
| 147 ret=BN_mod_exp_mont_consttime(r_mont_const,a,b,m,ctx,NULL); | |
| 148 if (ret <= 0) | |
| 149 { | |
| 150 printf("BN_mod_exp_mont_consttime() problems\n"); | |
| 151 ERR_print_errors(out); | |
| 152 EXIT(1); | |
| 153 } | |
| 154 | |
| 155 if (BN_cmp(r_simple, r_mont) == 0 | |
| 156 && BN_cmp(r_simple,r_recp) == 0 | |
| 157 && BN_cmp(r_simple,r_mont_const) == 0) | |
| 158 { | |
| 159 printf("."); | |
| 160 fflush(stdout); | |
| 161 } | |
| 162 else | |
| 163 { | |
| 164 if (BN_cmp(r_simple,r_mont) != 0) | |
| 165 printf("\nsimple and mont results differ\n"); | |
| 166 if (BN_cmp(r_simple,r_mont_const) != 0) | |
| 167 printf("\nsimple and mont const time results dif
fer\n"); | |
| 168 if (BN_cmp(r_simple,r_recp) != 0) | |
| 169 printf("\nsimple and recp results differ\n"); | |
| 170 | |
| 171 printf("a (%3d) = ",BN_num_bits(a)); BN_print(out,a); | |
| 172 printf("\nb (%3d) = ",BN_num_bits(b)); BN_print(out,b); | |
| 173 printf("\nm (%3d) = ",BN_num_bits(m)); BN_print(out,m); | |
| 174 printf("\nsimple ="); BN_print(out,r_simple); | |
| 175 printf("\nrecp ="); BN_print(out,r_recp); | |
| 176 printf("\nmont ="); BN_print(out,r_mont); | |
| 177 printf("\nmont_ct ="); BN_print(out,r_mont_const); | |
| 178 printf("\n"); | |
| 179 EXIT(1); | |
| 180 } | |
| 181 } | |
| 182 BN_free(r_mont); | |
| 183 BN_free(r_mont_const); | |
| 184 BN_free(r_recp); | |
| 185 BN_free(r_simple); | |
| 186 BN_free(a); | |
| 187 BN_free(b); | |
| 188 BN_free(m); | |
| 189 BN_CTX_free(ctx); | |
| 190 ERR_remove_thread_state(NULL); | |
| 191 CRYPTO_mem_leaks(out); | |
| 192 BIO_free(out); | |
| 193 printf(" done\n"); | |
| 194 EXIT(0); | |
| 195 err: | |
| 196 ERR_load_crypto_strings(); | |
| 197 ERR_print_errors(out); | |
| 198 #ifdef OPENSSL_SYS_NETWARE | |
| 199 printf("ERROR\n"); | |
| 200 #endif | |
| 201 EXIT(1); | |
| 202 return(1); | |
| 203 } | |
| 204 | |
| OLD | NEW |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master