crypto/asn1/t_pkey.c

   1 /* crypto/asn1/t_pkey.c */
   2 /* Copyright (C) 1995-1997 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 "buffer.h"
  62 #include "bn.h"
  63 #ifndef NO_RSA
  64 #include "rsa.h"
  65 #endif
  66 #ifndef NO_DH
  67 #include "dh.h"
  68 #endif
  69 #ifndef NO_DSA
  70 #include "dsa.h"
  71 #endif
  72
  73 /* DHerr(DH_F_DHPARAMS_PRINT,ERR_R_MALLOC_FAILURE);
  74  * DSAerr(DSA_F_DSAPARAMS_PRINT,ERR_R_MALLOC_FAILURE);
  75  */
  76
  77 #ifndef NOPROTO
  78 static int print(BIO *fp,char *str,BIGNUM *num,
  79                 unsigned char *buf,int off);
  80 #else
  81 static int print();
  82 #endif
  83
  84 #ifndef NO_RSA
  85 #ifndef WIN16
  86 int RSA_print_fp(fp,x,off)
  87 FILE *fp;
  88 RSA *x;
  89 int off;
  90         {
  91         BIO *b;
  92         int ret;
  93
  94         if ((b=BIO_new(BIO_s_file())) == NULL)
  95                 {
  96                 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
  97                 return(0);
  98                 }
  99         BIO_set_fp(b,fp,BIO_NOCLOSE);
 100         ret=RSA_print(b,x,off);
 101         BIO_free(b);
 102         return(ret);
 103         }
 104 #endif
 105
 106 int RSA_print(bp,x,off)
 107 BIO *bp;
 108 RSA *x;
 109 int off;
 110         {
 111         char str[128],*s;
 112         unsigned char *m=NULL;
 113         int i,ret=0;
 114
 115         i=RSA_size(x);
 116         m=(unsigned char *)Malloc((unsigned int)i+10);
 117         if (m == NULL)
 118                 {
 119                 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
 120                 goto err;
 121                 }
 122
 123         if (off)
 124                 {
 125                 if (off > 128) off=128;
 126                 memset(str,' ',off);
 127                 }
 128         if (x->d != NULL)
 129                 {
 130                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 131                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
 132                         <= 0) goto err;
 133                 }
 134
 135         if (x->d == NULL)
 136                 sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
 137         else
 138                 strcpy(str,"modulus:");
 139         if (!print(bp,str,x->n,m,off)) goto err;
 140         s=(x->d == NULL)?"Exponent:":"publicExponent:";
 141         if (!print(bp,s,x->e,m,off)) goto err;
 142         if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
 143         if (!print(bp,"prime1:",x->p,m,off)) goto err;
 144         if (!print(bp,"prime2:",x->q,m,off)) goto err;
 145         if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
 146         if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
 147         if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
 148         ret=1;
 149 err:
 150         if (m != NULL) Free((char *)m);
 151         return(ret);
 152         }
 153 #endif /* NO_RSA */
 154
 155 #ifndef NO_DSA
 156 #ifndef WIN16
 157 int DSA_print_fp(fp,x,off)
 158 FILE *fp;
 159 DSA *x;
 160 int off;
 161         {
 162         BIO *b;
 163         int ret;
 164
 165         if ((b=BIO_new(BIO_s_file())) == NULL)
 166                 {
 167                 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
 168                 return(0);
 169                 }
 170         BIO_set_fp(b,fp,BIO_NOCLOSE);
 171         ret=DSA_print(b,x,off);
 172         BIO_free(b);
 173         return(ret);
 174         }
 175 #endif
 176
 177 int DSA_print(bp,x,off)
 178 BIO *bp;
 179 DSA *x;
 180 int off;
 181         {
 182         char str[128];
 183         unsigned char *m=NULL;
 184         int i,ret=0;
 185         BIGNUM *bn=NULL;
 186
 187         if (x->p != NULL)
 188                 bn=x->p;
 189         else if (x->priv_key != NULL)
 190                 bn=x->priv_key;
 191         else if (x->pub_key != NULL)
 192                 bn=x->pub_key;
 193
 194         /* larger than needed but what the hell :-) */
 195         if (bn != NULL)
 196                 i=BN_num_bytes(bn)*2;
 197         else
 198                 i=256;
 199         m=(unsigned char *)Malloc((unsigned int)i+10);
 200         if (m == NULL)
 201                 {
 202                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 203                 goto err;
 204                 }
 205
 206         if (off)
 207                 {
 208                 if (off > 128) off=128;
 209                 memset(str,' ',off);
 210                 }
 211         if (x->priv_key != NULL)
 212                 {
 213                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 214                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 215                         <= 0) goto err;
 216                 }
 217
 218         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 219                 goto err;
 220         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 221                 goto err;
 222         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 223         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 224         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 225         ret=1;
 226 err:
 227         if (m != NULL) Free((char *)m);
 228         return(ret);
 229         }
 230 #endif /* !NO_DSA */
 231
 232 static int print(bp,number,num,buf,off)
 233 BIO *bp;
 234 char *number;
 235 BIGNUM *num;
 236 unsigned char *buf;
 237 int off;
 238         {
 239         int n,i;
 240         char str[128],*neg;
 241
 242         if (num == NULL) return(1);
 243         neg=(num->neg)?"-":"";
 244         if (off)
 245                 {
 246                 if (off > 128) off=128;
 247                 memset(str,' ',off);
 248                 if (BIO_write(bp,str,off) <= 0) return(0);
 249                 }
 250
 251         if (BN_num_bytes(num) <= BN_BYTES)
 252                 {
 253                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 254                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 255                         <= 0) return(0);
 256                 }
 257         else
 258                 {
 259                 buf[0]=0;
 260                 if (BIO_printf(bp,"%s%s",number,
 261                         (neg[0] == '-')?" (Negative)":"") <= 0)
 262                         return(0);
 263                 n=BN_bn2bin(num,&buf[1]);
 264
 265                 if (buf[1] & 0x80)
 266                         n++;
 267                 else    buf++;
 268
 269                 for (i=0; i<n; i++)
 270                         {
 271                         if ((i%15) == 0)
 272                                 {
 273                                 str[0]='\n';
 274                                 memset(&(str[1]),' ',off+4);
 275                                 if (BIO_write(bp,str,off+1+4) <= 0) return(0);
 276                                 }
 277                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 278                                 <= 0) return(0);
 279                         }
 280                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 281                 }
 282         return(1);
 283         }
 284
 285 #ifndef NO_DH
 286 #ifndef WIN16
 287 int DHparams_print_fp(fp,x)
 288 FILE *fp;
 289 DH *x;
 290         {
 291         BIO *b;
 292         int ret;
 293
 294         if ((b=BIO_new(BIO_s_file())) == NULL)
 295                 {
 296                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 297                 return(0);
 298                 }
 299         BIO_set_fp(b,fp,BIO_NOCLOSE);
 300         ret=DHparams_print(b, x);
 301         BIO_free(b);
 302         return(ret);
 303         }
 304 #endif
 305
 306 int DHparams_print(bp,x)
 307 BIO *bp;
 308 DH *x;
 309         {
 310         unsigned char *m=NULL;
 311         int reason=ERR_R_BUF_LIB,i,ret=0;
 312
 313         i=BN_num_bytes(x->p);
 314         m=(unsigned char *)Malloc((unsigned int)i+10);
 315         if (m == NULL)
 316                 {
 317                 reason=ERR_R_MALLOC_FAILURE;
 318                 goto err;
 319                 }
 320
 321         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 322                 BN_num_bits(x->p)) <= 0)
 323                 goto err;
 324         if (!print(bp,"prime:",x->p,m,4)) goto err;
 325         if (!print(bp,"generator:",x->g,m,4)) goto err;
 326         if (x->length != 0)
 327                 {
 328                 if (BIO_printf(bp,"    recomented-private-length: %d bits\n",
 329                         (int)x->length) <= 0) goto err;
 330                 }
 331         ret=1;
 332 err:
 333         if (m != NULL) Free((char *)m);
 334         DHerr(DH_F_DHPARAMS_PRINT,reason);
 335         return(ret);
 336         }
 337 #endif
 338
 339 #ifndef NO_DSA
 340 #ifndef WIN16
 341 int DSAparams_print_fp(fp,x)
 342 FILE *fp;
 343 DSA *x;
 344         {
 345         BIO *b;
 346         int ret;
 347
 348         if ((b=BIO_new(BIO_s_file())) == NULL)
 349                 {
 350                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 351                 return(0);
 352                 }
 353         BIO_set_fp(b,fp,BIO_NOCLOSE);
 354         ret=DSAparams_print(b, x);
 355         BIO_free(b);
 356         return(ret);
 357         }
 358 #endif
 359
 360 int DSAparams_print(bp,x)
 361 BIO *bp;
 362 DSA *x;
 363         {
 364         unsigned char *m=NULL;
 365         int reason=ERR_R_BUF_LIB,i,ret=0;
 366
 367         i=BN_num_bytes(x->p);
 368         m=(unsigned char *)Malloc((unsigned int)i+10);
 369         if (m == NULL)
 370                 {
 371                 reason=ERR_R_MALLOC_FAILURE;
 372                 goto err;
 373                 }
 374
 375         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 376                 BN_num_bits(x->p)) <= 0)
 377                 goto err;
 378         if (!print(bp,"p:",x->p,m,4)) goto err;
 379         if (!print(bp,"q:",x->q,m,4)) goto err;
 380         if (!print(bp,"g:",x->g,m,4)) goto err;
 381         ret=1;
 382 err:
 383         if (m != NULL) Free((char *)m);
 384         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 385         return(ret);
 386         }
 387
 388 #endif /* !NO_DSA */
 389