release/src/router/openssl/apps/dsa.c

   1 /* apps/dsa.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 #ifndef NO_DSA
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include <time.h>
  64 #include "apps.h"
  65 #include <openssl/bio.h>
  66 #include <openssl/err.h>
  67 #include <openssl/dsa.h>
  68 #include <openssl/evp.h>
  69 #include <openssl/x509.h>
  70 #include <openssl/pem.h>
  71
  72 #undef PROG
  73 #define PROG    dsa_main
  74
  75 /* -inform arg  - input format - default PEM (one of DER, NET or PEM)
  76  * -outform arg - output format - default PEM
  77  * -in arg      - input file - default stdin
  78  * -out arg     - output file - default stdout
  79  * -des         - encrypt output if PEM format with DES in cbc mode
  80  * -des3        - encrypt output if PEM format
  81  * -idea        - encrypt output if PEM format
  82  * -text        - print a text version
  83  * -modulus     - print the DSA public key
  84  */
  85
  86 int MAIN(int, char **);
  87
  88 int MAIN(int argc, char **argv)
  89         {
  90         int ret=1;
  91         DSA *dsa=NULL;
  92         int i,badops=0;
  93         const EVP_CIPHER *enc=NULL;
  94         BIO *in=NULL,*out=NULL;
  95         int informat,outformat,text=0,noout=0;
  96         int pubin = 0, pubout = 0;
  97         char *infile,*outfile,*prog;
  98         char *passargin = NULL, *passargout = NULL;
  99         char *passin = NULL, *passout = NULL;
 100         int modulus=0;
 101
 102         apps_startup();
 103
 104         if (bio_err == NULL)
 105                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 106                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 107
 108         infile=NULL;
 109         outfile=NULL;
 110         informat=FORMAT_PEM;
 111         outformat=FORMAT_PEM;
 112
 113         prog=argv[0];
 114         argc--;
 115         argv++;
 116         while (argc >= 1)
 117                 {
 118                 if      (strcmp(*argv,"-inform") == 0)
 119                         {
 120                         if (--argc < 1) goto bad;
 121                         informat=str2fmt(*(++argv));
 122                         }
 123                 else if (strcmp(*argv,"-outform") == 0)
 124                         {
 125                         if (--argc < 1) goto bad;
 126                         outformat=str2fmt(*(++argv));
 127                         }
 128                 else if (strcmp(*argv,"-in") == 0)
 129                         {
 130                         if (--argc < 1) goto bad;
 131                         infile= *(++argv);
 132                         }
 133                 else if (strcmp(*argv,"-out") == 0)
 134                         {
 135                         if (--argc < 1) goto bad;
 136                         outfile= *(++argv);
 137                         }
 138                 else if (strcmp(*argv,"-passin") == 0)
 139                         {
 140                         if (--argc < 1) goto bad;
 141                         passargin= *(++argv);
 142                         }
 143                 else if (strcmp(*argv,"-passout") == 0)
 144                         {
 145                         if (--argc < 1) goto bad;
 146                         passargout= *(++argv);
 147                         }
 148                 else if (strcmp(*argv,"-noout") == 0)
 149                         noout=1;
 150                 else if (strcmp(*argv,"-text") == 0)
 151                         text=1;
 152                 else if (strcmp(*argv,"-modulus") == 0)
 153                         modulus=1;
 154                 else if (strcmp(*argv,"-pubin") == 0)
 155                         pubin=1;
 156                 else if (strcmp(*argv,"-pubout") == 0)
 157                         pubout=1;
 158                 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
 159                         {
 160                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 161                         badops=1;
 162                         break;
 163                         }
 164                 argc--;
 165                 argv++;
 166                 }
 167
 168         if (badops)
 169                 {
 170 bad:
 171                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
 172                 BIO_printf(bio_err,"where options are\n");
 173                 BIO_printf(bio_err," -inform arg     input format - DER or PEM\n");
 174                 BIO_printf(bio_err," -outform arg    output format - DER or PEM\n");
 175                 BIO_printf(bio_err," -in arg         input file\n");
 176                 BIO_printf(bio_err," -passin arg     input file pass phrase source\n");
 177                 BIO_printf(bio_err," -out arg        output file\n");
 178                 BIO_printf(bio_err," -passout arg    output file pass phrase source\n");
 179                 BIO_printf(bio_err," -des            encrypt PEM output with cbc des\n");
 180                 BIO_printf(bio_err," -des3           encrypt PEM output with ede cbc des using 168 bit key\n");
 181 #ifndef NO_IDEA
 182                 BIO_printf(bio_err," -idea           encrypt PEM output with cbc idea\n");
 183 #endif
 184                 BIO_printf(bio_err," -text           print the key in text\n");
 185                 BIO_printf(bio_err," -noout          don't print key out\n");
 186                 BIO_printf(bio_err," -modulus        print the DSA public value\n");
 187                 goto end;
 188                 }
 189
 190         ERR_load_crypto_strings();
 191
 192         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
 193                 BIO_printf(bio_err, "Error getting passwords\n");
 194                 goto end;
 195         }
 196
 197         in=BIO_new(BIO_s_file());
 198         out=BIO_new(BIO_s_file());
 199         if ((in == NULL) || (out == NULL))
 200                 {
 201                 ERR_print_errors(bio_err);
 202                 goto end;
 203                 }
 204
 205         if (infile == NULL)
 206                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 207         else
 208                 {
 209                 if (BIO_read_filename(in,infile) <= 0)
 210                         {
 211                         perror(infile);
 212                         goto end;
 213                         }
 214                 }
 215
 216         BIO_printf(bio_err,"read DSA key\n");
 217         if      (informat == FORMAT_ASN1) {
 218                 if(pubin) dsa=d2i_DSA_PUBKEY_bio(in,NULL);
 219                 else dsa=d2i_DSAPrivateKey_bio(in,NULL);
 220         } else if (informat == FORMAT_PEM) {
 221                 if(pubin) dsa=PEM_read_bio_DSA_PUBKEY(in,NULL, NULL, NULL);
 222                 else dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL,passin);
 223         } else
 224                 {
 225                 BIO_printf(bio_err,"bad input format specified for key\n");
 226                 goto end;
 227                 }
 228         if (dsa == NULL)
 229                 {
 230                 BIO_printf(bio_err,"unable to load Key\n");
 231                 ERR_print_errors(bio_err);
 232                 goto end;
 233                 }
 234
 235         if (outfile == NULL)
 236                 {
 237                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 238 #ifdef VMS
 239                 {
 240                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 241                 out = BIO_push(tmpbio, out);
 242                 }
 243 #endif
 244                 }
 245         else
 246                 {
 247                 if (BIO_write_filename(out,outfile) <= 0)
 248                         {
 249                         perror(outfile);
 250                         goto end;
 251                         }
 252                 }
 253
 254         if (text)
 255                 if (!DSA_print(out,dsa,0))
 256                         {
 257                         perror(outfile);
 258                         ERR_print_errors(bio_err);
 259                         goto end;
 260                         }
 261
 262         if (modulus)
 263                 {
 264                 fprintf(stdout,"Public Key=");
 265                 BN_print(out,dsa->pub_key);
 266                 fprintf(stdout,"\n");
 267                 }
 268
 269         if (noout) goto end;
 270         BIO_printf(bio_err,"writing DSA key\n");
 271         if      (outformat == FORMAT_ASN1) {
 272                 if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa);
 273                 else i=i2d_DSAPrivateKey_bio(out,dsa);
 274         } else if (outformat == FORMAT_PEM) {
 275                 if(pubin || pubout)
 276                         i=PEM_write_bio_DSA_PUBKEY(out,dsa);
 277                 else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,
 278                                                         NULL,0,NULL, passout);
 279         } else {
 280                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 281                 goto end;
 282                 }
 283         if (!i)
 284                 {
 285                 BIO_printf(bio_err,"unable to write private key\n");
 286                 ERR_print_errors(bio_err);
 287                 }
 288         else
 289                 ret=0;
 290 end:
 291         if(in != NULL) BIO_free(in);
 292         if(out != NULL) BIO_free_all(out);
 293         if(dsa != NULL) DSA_free(dsa);
 294         if(passin) OPENSSL_free(passin);
 295         if(passout) OPENSSL_free(passout);
 296         EXIT(ret);
 297         }
 298 #endif