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| 1 /* apps/dh.c */ | |
| 2 /* obsoleted by dhparam.c */ | |
| 3 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 4 * All rights reserved. | |
| 5 * | |
| 6 * This package is an SSL implementation written | |
| 7 * by Eric Young (eay@cryptsoft.com). | |
| 8 * The implementation was written so as to conform with Netscapes SSL. | |
| 9 * | |
| 10 * This library is free for commercial and non-commercial use as long as | |
| 11 * the following conditions are aheared to. The following conditions | |
| 12 * apply to all code found in this distribution, be it the RC4, RSA, | |
| 13 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
| 14 * included with this distribution is covered by the same copyright terms | |
| 15 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
| 16 * | |
| 17 * Copyright remains Eric Young's, and as such any Copyright notices in | |
| 18 * the code are not to be removed. | |
| 19 * If this package is used in a product, Eric Young should be given attribution | |
| 20 * as the author of the parts of the library used. | |
| 21 * This can be in the form of a textual message at program startup or | |
| 22 * in documentation (online or textual) provided with the package. | |
| 23 * | |
| 24 * Redistribution and use in source and binary forms, with or without | |
| 25 * modification, are permitted provided that the following conditions | |
| 26 * are met: | |
| 27 * 1. Redistributions of source code must retain the copyright | |
| 28 * notice, this list of conditions and the following disclaimer. | |
| 29 * 2. Redistributions in binary form must reproduce the above copyright | |
| 30 * notice, this list of conditions and the following disclaimer in the | |
| 31 * documentation and/or other materials provided with the distribution. | |
| 32 * 3. All advertising materials mentioning features or use of this software | |
| 33 * must display the following acknowledgement: | |
| 34 * "This product includes cryptographic software written by | |
| 35 * Eric Young (eay@cryptsoft.com)" | |
| 36 * The word 'cryptographic' can be left out if the rouines from the library | |
| 37 * being used are not cryptographic related :-). | |
| 38 * 4. If you include any Windows specific code (or a derivative thereof) from | |
| 39 * the apps directory (application code) you must include an acknowledgement: | |
| 40 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
| 41 * | |
| 42 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
| 43 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 44 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 45 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 46 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 47 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 48 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 50 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 51 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 52 * SUCH DAMAGE. | |
| 53 * | |
| 54 * The licence and distribution terms for any publically available version or | |
| 55 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
| 56 * copied and put under another distribution licence | |
| 57 * [including the GNU Public Licence.] | |
| 58 */ | |
| 59 | |
| 60 #include <openssl/opensslconf.h> /* for OPENSSL_NO_DH */ | |
| 61 #ifndef OPENSSL_NO_DH | |
| 62 #include <stdio.h> | |
| 63 #include <stdlib.h> | |
| 64 #include <time.h> | |
| 65 #include <string.h> | |
| 66 #include "apps.h" | |
| 67 #include <openssl/bio.h> | |
| 68 #include <openssl/err.h> | |
| 69 #include <openssl/bn.h> | |
| 70 #include <openssl/dh.h> | |
| 71 #include <openssl/x509.h> | |
| 72 #include <openssl/pem.h> | |
| 73 | |
| 74 #undef PROG | |
| 75 #define PROG dh_main | |
| 76 | |
| 77 /* -inform arg - input format - default PEM (DER or PEM) | |
| 78 * -outform arg - output format - default PEM | |
| 79 * -in arg - input file - default stdin | |
| 80 * -out arg - output file - default stdout | |
| 81 * -check - check the parameters are ok | |
| 82 * -noout | |
| 83 * -text | |
| 84 * -C | |
| 85 */ | |
| 86 | |
| 87 int MAIN(int, char **); | |
| 88 | |
| 89 int MAIN(int argc, char **argv) | |
| 90 { | |
| 91 DH *dh=NULL; | |
| 92 int i,badops=0,text=0; | |
| 93 BIO *in=NULL,*out=NULL; | |
| 94 int informat,outformat,check=0,noout=0,C=0,ret=1; | |
| 95 char *infile,*outfile,*prog; | |
| 96 #ifndef OPENSSL_NO_ENGINE | |
| 97 char *engine; | |
| 98 #endif | |
| 99 | |
| 100 apps_startup(); | |
| 101 | |
| 102 if (bio_err == NULL) | |
| 103 if ((bio_err=BIO_new(BIO_s_file())) != NULL) | |
| 104 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); | |
| 105 | |
| 106 if (!load_config(bio_err, NULL)) | |
| 107 goto end; | |
| 108 | |
| 109 #ifndef OPENSSL_NO_ENGINE | |
| 110 engine=NULL; | |
| 111 #endif | |
| 112 infile=NULL; | |
| 113 outfile=NULL; | |
| 114 informat=FORMAT_PEM; | |
| 115 outformat=FORMAT_PEM; | |
| 116 | |
| 117 prog=argv[0]; | |
| 118 argc--; | |
| 119 argv++; | |
| 120 while (argc >= 1) | |
| 121 { | |
| 122 if (strcmp(*argv,"-inform") == 0) | |
| 123 { | |
| 124 if (--argc < 1) goto bad; | |
| 125 informat=str2fmt(*(++argv)); | |
| 126 } | |
| 127 else if (strcmp(*argv,"-outform") == 0) | |
| 128 { | |
| 129 if (--argc < 1) goto bad; | |
| 130 outformat=str2fmt(*(++argv)); | |
| 131 } | |
| 132 else if (strcmp(*argv,"-in") == 0) | |
| 133 { | |
| 134 if (--argc < 1) goto bad; | |
| 135 infile= *(++argv); | |
| 136 } | |
| 137 else if (strcmp(*argv,"-out") == 0) | |
| 138 { | |
| 139 if (--argc < 1) goto bad; | |
| 140 outfile= *(++argv); | |
| 141 } | |
| 142 #ifndef OPENSSL_NO_ENGINE | |
| 143 else if (strcmp(*argv,"-engine") == 0) | |
| 144 { | |
| 145 if (--argc < 1) goto bad; | |
| 146 engine= *(++argv); | |
| 147 } | |
| 148 #endif | |
| 149 else if (strcmp(*argv,"-check") == 0) | |
| 150 check=1; | |
| 151 else if (strcmp(*argv,"-text") == 0) | |
| 152 text=1; | |
| 153 else if (strcmp(*argv,"-C") == 0) | |
| 154 C=1; | |
| 155 else if (strcmp(*argv,"-noout") == 0) | |
| 156 noout=1; | |
| 157 else | |
| 158 { | |
| 159 BIO_printf(bio_err,"unknown option %s\n",*argv); | |
| 160 badops=1; | |
| 161 break; | |
| 162 } | |
| 163 argc--; | |
| 164 argv++; | |
| 165 } | |
| 166 | |
| 167 if (badops) | |
| 168 { | |
| 169 bad: | |
| 170 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); | |
| 171 BIO_printf(bio_err,"where options are\n"); | |
| 172 BIO_printf(bio_err," -inform arg input format - one of DER PEM
\n"); | |
| 173 BIO_printf(bio_err," -outform arg output format - one of DER PE
M\n"); | |
| 174 BIO_printf(bio_err," -in arg input file\n"); | |
| 175 BIO_printf(bio_err," -out arg output file\n"); | |
| 176 BIO_printf(bio_err," -check check the DH parameters\n"); | |
| 177 BIO_printf(bio_err," -text print a text form of the DH p
arameters\n"); | |
| 178 BIO_printf(bio_err," -C Output C code\n"); | |
| 179 BIO_printf(bio_err," -noout no output\n"); | |
| 180 #ifndef OPENSSL_NO_ENGINE | |
| 181 BIO_printf(bio_err," -engine e use engine e, possibly a hard
ware device.\n"); | |
| 182 #endif | |
| 183 goto end; | |
| 184 } | |
| 185 | |
| 186 ERR_load_crypto_strings(); | |
| 187 | |
| 188 #ifndef OPENSSL_NO_ENGINE | |
| 189 setup_engine(bio_err, engine, 0); | |
| 190 #endif | |
| 191 | |
| 192 in=BIO_new(BIO_s_file()); | |
| 193 out=BIO_new(BIO_s_file()); | |
| 194 if ((in == NULL) || (out == NULL)) | |
| 195 { | |
| 196 ERR_print_errors(bio_err); | |
| 197 goto end; | |
| 198 } | |
| 199 | |
| 200 if (infile == NULL) | |
| 201 BIO_set_fp(in,stdin,BIO_NOCLOSE); | |
| 202 else | |
| 203 { | |
| 204 if (BIO_read_filename(in,infile) <= 0) | |
| 205 { | |
| 206 perror(infile); | |
| 207 goto end; | |
| 208 } | |
| 209 } | |
| 210 if (outfile == NULL) | |
| 211 { | |
| 212 BIO_set_fp(out,stdout,BIO_NOCLOSE); | |
| 213 #ifdef OPENSSL_SYS_VMS | |
| 214 { | |
| 215 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
| 216 out = BIO_push(tmpbio, out); | |
| 217 } | |
| 218 #endif | |
| 219 } | |
| 220 else | |
| 221 { | |
| 222 if (BIO_write_filename(out,outfile) <= 0) | |
| 223 { | |
| 224 perror(outfile); | |
| 225 goto end; | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 if (informat == FORMAT_ASN1) | |
| 230 dh=d2i_DHparams_bio(in,NULL); | |
| 231 else if (informat == FORMAT_PEM) | |
| 232 dh=PEM_read_bio_DHparams(in,NULL,NULL,NULL); | |
| 233 else | |
| 234 { | |
| 235 BIO_printf(bio_err,"bad input format specified\n"); | |
| 236 goto end; | |
| 237 } | |
| 238 if (dh == NULL) | |
| 239 { | |
| 240 BIO_printf(bio_err,"unable to load DH parameters\n"); | |
| 241 ERR_print_errors(bio_err); | |
| 242 goto end; | |
| 243 } | |
| 244 | |
| 245 | |
| 246 | |
| 247 if (text) | |
| 248 { | |
| 249 DHparams_print(out,dh); | |
| 250 #ifdef undef | |
| 251 printf("p="); | |
| 252 BN_print(stdout,dh->p); | |
| 253 printf("\ng="); | |
| 254 BN_print(stdout,dh->g); | |
| 255 printf("\n"); | |
| 256 if (dh->length != 0) | |
| 257 printf("recommended private length=%ld\n",dh->length); | |
| 258 #endif | |
| 259 } | |
| 260 | |
| 261 if (check) | |
| 262 { | |
| 263 if (!DH_check(dh,&i)) | |
| 264 { | |
| 265 ERR_print_errors(bio_err); | |
| 266 goto end; | |
| 267 } | |
| 268 if (i & DH_CHECK_P_NOT_PRIME) | |
| 269 printf("p value is not prime\n"); | |
| 270 if (i & DH_CHECK_P_NOT_SAFE_PRIME) | |
| 271 printf("p value is not a safe prime\n"); | |
| 272 if (i & DH_UNABLE_TO_CHECK_GENERATOR) | |
| 273 printf("unable to check the generator value\n"); | |
| 274 if (i & DH_NOT_SUITABLE_GENERATOR) | |
| 275 printf("the g value is not a generator\n"); | |
| 276 if (i == 0) | |
| 277 printf("DH parameters appear to be ok.\n"); | |
| 278 } | |
| 279 if (C) | |
| 280 { | |
| 281 unsigned char *data; | |
| 282 int len,l,bits; | |
| 283 | |
| 284 len=BN_num_bytes(dh->p); | |
| 285 bits=BN_num_bits(dh->p); | |
| 286 data=(unsigned char *)OPENSSL_malloc(len); | |
| 287 if (data == NULL) | |
| 288 { | |
| 289 perror("OPENSSL_malloc"); | |
| 290 goto end; | |
| 291 } | |
| 292 l=BN_bn2bin(dh->p,data); | |
| 293 printf("static unsigned char dh%d_p[]={",bits); | |
| 294 for (i=0; i<l; i++) | |
| 295 { | |
| 296 if ((i%12) == 0) printf("\n\t"); | |
| 297 printf("0x%02X,",data[i]); | |
| 298 } | |
| 299 printf("\n\t};\n"); | |
| 300 | |
| 301 l=BN_bn2bin(dh->g,data); | |
| 302 printf("static unsigned char dh%d_g[]={",bits); | |
| 303 for (i=0; i<l; i++) | |
| 304 { | |
| 305 if ((i%12) == 0) printf("\n\t"); | |
| 306 printf("0x%02X,",data[i]); | |
| 307 } | |
| 308 printf("\n\t};\n\n"); | |
| 309 | |
| 310 printf("DH *get_dh%d()\n\t{\n",bits); | |
| 311 printf("\tDH *dh;\n\n"); | |
| 312 printf("\tif ((dh=DH_new()) == NULL) return(NULL);\n"); | |
| 313 printf("\tdh->p=BN_bin2bn(dh%d_p,sizeof(dh%d_p),NULL);\n", | |
| 314 bits,bits); | |
| 315 printf("\tdh->g=BN_bin2bn(dh%d_g,sizeof(dh%d_g),NULL);\n", | |
| 316 bits,bits); | |
| 317 printf("\tif ((dh->p == NULL) || (dh->g == NULL))\n"); | |
| 318 printf("\t\treturn(NULL);\n"); | |
| 319 printf("\treturn(dh);\n\t}\n"); | |
| 320 OPENSSL_free(data); | |
| 321 } | |
| 322 | |
| 323 | |
| 324 if (!noout) | |
| 325 { | |
| 326 if (outformat == FORMAT_ASN1) | |
| 327 i=i2d_DHparams_bio(out,dh); | |
| 328 else if (outformat == FORMAT_PEM) | |
| 329 i=PEM_write_bio_DHparams(out,dh); | |
| 330 else { | |
| 331 BIO_printf(bio_err,"bad output format specified for outf
ile\n"); | |
| 332 goto end; | |
| 333 } | |
| 334 if (!i) | |
| 335 { | |
| 336 BIO_printf(bio_err,"unable to write DH parameters\n"); | |
| 337 ERR_print_errors(bio_err); | |
| 338 goto end; | |
| 339 } | |
| 340 } | |
| 341 ret=0; | |
| 342 end: | |
| 343 if (in != NULL) BIO_free(in); | |
| 344 if (out != NULL) BIO_free_all(out); | |
| 345 if (dh != NULL) DH_free(dh); | |
| 346 apps_shutdown(); | |
| 347 OPENSSL_EXIT(ret); | |
| 348 } | |
| 349 #else /* !OPENSSL_NO_DH */ | |
| 350 | |
| 351 # if PEDANTIC | |
| 352 static void *dummy=&dummy; | |
| 353 # endif | |
| 354 | |
| 355 #endif | |
| 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