crypto/asn1/t_pkey.c

   1 /* crypto/asn1/t_pkey.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 "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,const 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 NO_FP_API
  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];
 112         const char *s;
 113         unsigned char *m=NULL;
 114         int i,ret=0;
 115
 116         i=RSA_size(x);
 117         m=(unsigned char *)Malloc((unsigned int)i+10);
 118         if (m == NULL)
 119                 {
 120                 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
 121                 goto err;
 122                 }
 123
 124         if (off)
 125                 {
 126                 if (off > 128) off=128;
 127                 memset(str,' ',off);
 128                 }
 129         if (x->d != NULL)
 130                 {
 131                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 132                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
 133                         <= 0) goto err;
 134                 }
 135
 136         if (x->d == NULL)
 137                 sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
 138         else
 139                 strcpy(str,"modulus:");
 140         if (!print(bp,str,x->n,m,off)) goto err;
 141         s=(x->d == NULL)?"Exponent:":"publicExponent:";
 142         if (!print(bp,s,x->e,m,off)) goto err;
 143         if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
 144         if (!print(bp,"prime1:",x->p,m,off)) goto err;
 145         if (!print(bp,"prime2:",x->q,m,off)) goto err;
 146         if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
 147         if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
 148         if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
 149         ret=1;
 150 err:
 151         if (m != NULL) Free((char *)m);
 152         return(ret);
 153         }
 154 #endif /* NO_RSA */
 155
 156 #ifndef NO_DSA
 157 #ifndef NO_FP_API
 158 int DSA_print_fp(fp,x,off)
 159 FILE *fp;
 160 DSA *x;
 161 int off;
 162         {
 163         BIO *b;
 164         int ret;
 165
 166         if ((b=BIO_new(BIO_s_file())) == NULL)
 167                 {
 168                 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
 169                 return(0);
 170                 }
 171         BIO_set_fp(b,fp,BIO_NOCLOSE);
 172         ret=DSA_print(b,x,off);
 173         BIO_free(b);
 174         return(ret);
 175         }
 176 #endif
 177
 178 int DSA_print(bp,x,off)
 179 BIO *bp;
 180 DSA *x;
 181 int off;
 182         {
 183         char str[128];
 184         unsigned char *m=NULL;
 185         int i,ret=0;
 186         BIGNUM *bn=NULL;
 187
 188         if (x->p != NULL)
 189                 bn=x->p;
 190         else if (x->priv_key != NULL)
 191                 bn=x->priv_key;
 192         else if (x->pub_key != NULL)
 193                 bn=x->pub_key;
 194
 195         /* larger than needed but what the hell :-) */
 196         if (bn != NULL)
 197                 i=BN_num_bytes(bn)*2;
 198         else
 199                 i=256;
 200         m=(unsigned char *)Malloc((unsigned int)i+10);
 201         if (m == NULL)
 202                 {
 203                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 204                 goto err;
 205                 }
 206
 207         if (off)
 208                 {
 209                 if (off > 128) off=128;
 210                 memset(str,' ',off);
 211                 }
 212         if (x->priv_key != NULL)
 213                 {
 214                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 215                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 216                         <= 0) goto err;
 217                 }
 218
 219         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 220                 goto err;
 221         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 222                 goto err;
 223         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 224         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 225         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 226         ret=1;
 227 err:
 228         if (m != NULL) Free((char *)m);
 229         return(ret);
 230         }
 231 #endif /* !NO_DSA */
 232
 233 static int print(bp,number,num,buf,off)
 234 BIO *bp;
 235 const char *number;
 236 BIGNUM *num;
 237 unsigned char *buf;
 238 int off;
 239         {
 240         int n,i;
 241         char str[128];
 242         const char *neg;
 243
 244         if (num == NULL) return(1);
 245         neg=(num->neg)?"-":"";
 246         if (off)
 247                 {
 248                 if (off > 128) off=128;
 249                 memset(str,' ',off);
 250                 if (BIO_write(bp,str,off) <= 0) return(0);
 251                 }
 252
 253         if (BN_num_bytes(num) <= BN_BYTES)
 254                 {
 255                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 256                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 257                         <= 0) return(0);
 258                 }
 259         else
 260                 {
 261                 buf[0]=0;
 262                 if (BIO_printf(bp,"%s%s",number,
 263                         (neg[0] == '-')?" (Negative)":"") <= 0)
 264                         return(0);
 265                 n=BN_bn2bin(num,&buf[1]);
 266
 267                 if (buf[1] & 0x80)
 268                         n++;
 269                 else    buf++;
 270
 271                 for (i=0; i<n; i++)
 272                         {
 273                         if ((i%15) == 0)
 274                                 {
 275                                 str[0]='\n';
 276                                 memset(&(str[1]),' ',off+4);
 277                                 if (BIO_write(bp,str,off+1+4) <= 0) return(0);
 278                                 }
 279                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 280                                 <= 0) return(0);
 281                         }
 282                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 283                 }
 284         return(1);
 285         }
 286
 287 #ifndef NO_DH
 288 #ifndef NO_FP_API
 289 int DHparams_print_fp(fp,x)
 290 FILE *fp;
 291 DH *x;
 292         {
 293         BIO *b;
 294         int ret;
 295
 296         if ((b=BIO_new(BIO_s_file())) == NULL)
 297                 {
 298                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 299                 return(0);
 300                 }
 301         BIO_set_fp(b,fp,BIO_NOCLOSE);
 302         ret=DHparams_print(b, x);
 303         BIO_free(b);
 304         return(ret);
 305         }
 306 #endif
 307
 308 int DHparams_print(bp,x)
 309 BIO *bp;
 310 DH *x;
 311         {
 312         unsigned char *m=NULL;
 313         int reason=ERR_R_BUF_LIB,i,ret=0;
 314
 315         i=BN_num_bytes(x->p);
 316         m=(unsigned char *)Malloc((unsigned int)i+10);
 317         if (m == NULL)
 318                 {
 319                 reason=ERR_R_MALLOC_FAILURE;
 320                 goto err;
 321                 }
 322
 323         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 324                 BN_num_bits(x->p)) <= 0)
 325                 goto err;
 326         if (!print(bp,"prime:",x->p,m,4)) goto err;
 327         if (!print(bp,"generator:",x->g,m,4)) goto err;
 328         if (x->length != 0)
 329                 {
 330                 if (BIO_printf(bp,"    recomented-private-length: %d bits\n",
 331                         (int)x->length) <= 0) goto err;
 332                 }
 333         ret=1;
 334         if (0)
 335                 {
 336 err:
 337                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 338                 }
 339         if (m != NULL) Free((char *)m);
 340         return(ret);
 341         }
 342 #endif
 343
 344 #ifndef NO_DSA
 345 #ifndef NO_FP_API
 346 int DSAparams_print_fp(fp,x)
 347 FILE *fp;
 348 DSA *x;
 349         {
 350         BIO *b;
 351         int ret;
 352
 353         if ((b=BIO_new(BIO_s_file())) == NULL)
 354                 {
 355                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 356                 return(0);
 357                 }
 358         BIO_set_fp(b,fp,BIO_NOCLOSE);
 359         ret=DSAparams_print(b, x);
 360         BIO_free(b);
 361         return(ret);
 362         }
 363 #endif
 364
 365 int DSAparams_print(bp,x)
 366 BIO *bp;
 367 DSA *x;
 368         {
 369         unsigned char *m=NULL;
 370         int reason=ERR_R_BUF_LIB,i,ret=0;
 371
 372         i=BN_num_bytes(x->p);
 373         m=(unsigned char *)Malloc((unsigned int)i+10);
 374         if (m == NULL)
 375                 {
 376                 reason=ERR_R_MALLOC_FAILURE;
 377                 goto err;
 378                 }
 379
 380         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 381                 BN_num_bits(x->p)) <= 0)
 382                 goto err;
 383         if (!print(bp,"p:",x->p,m,4)) goto err;
 384         if (!print(bp,"q:",x->q,m,4)) goto err;
 385         if (!print(bp,"g:",x->g,m,4)) goto err;
 386         ret=1;
 387 err:
 388         if (m != NULL) Free((char *)m);
 389         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 390         return(ret);
 391         }
 392
 393 #endif /* !NO_DSA */
 394