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 <openssl/objects.h>
  62 #include <openssl/buffer.h>
  63 #include <openssl/bn.h>
  64 #ifndef OPENSSL_NO_RSA
  65 #include <openssl/rsa.h>
  66 #endif
  67 #ifndef OPENSSL_NO_DH
  68 #include <openssl/dh.h>
  69 #endif
  70 #ifndef OPENSSL_NO_DSA
  71 #include <openssl/dsa.h>
  72 #endif
  73 #ifndef OPENSSL_NO_ECDSA
  74 #include <openssl/ecdsa.h>
  75 #endif
  76
  77 static int print(BIO *fp,const char *str,BIGNUM *num,
  78                 unsigned char *buf,int off);
  79 #ifndef OPENSSL_NO_RSA
  80 #ifndef OPENSSL_NO_FP_API
  81 int RSA_print_fp(FILE *fp, const RSA *x, int off)
  82         {
  83         BIO *b;
  84         int ret;
  85
  86         if ((b=BIO_new(BIO_s_file())) == NULL)
  87                 {
  88                 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
  89                 return(0);
  90                 }
  91         BIO_set_fp(b,fp,BIO_NOCLOSE);
  92         ret=RSA_print(b,x,off);
  93         BIO_free(b);
  94         return(ret);
  95         }
  96 #endif
  97
  98 int RSA_print(BIO *bp, const RSA *x, int off)
  99         {
 100         char str[128];
 101         const char *s;
 102         unsigned char *m=NULL;
 103         int ret=0;
 104         size_t buf_len=0, i;
 105
 106         if (x->n)
 107                 buf_len = (size_t)BN_num_bytes(x->n);
 108         if (x->e)
 109                 if (buf_len < (i = (size_t)BN_num_bytes(x->e)))
 110                         buf_len = i;
 111         if (x->d)
 112                 if (buf_len < (i = (size_t)BN_num_bytes(x->d)))
 113                         buf_len = i;
 114         if (x->p)
 115                 if (buf_len < (i = (size_t)BN_num_bytes(x->p)))
 116                         buf_len = i;
 117         if (x->q)
 118                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 119                         buf_len = i;
 120         if (x->dmp1)
 121                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmp1)))
 122                         buf_len = i;
 123         if (x->dmq1)
 124                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmq1)))
 125                         buf_len = i;
 126         if (x->iqmp)
 127                 if (buf_len < (i = (size_t)BN_num_bytes(x->iqmp)))
 128                         buf_len = i;
 129
 130         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 131         if (m == NULL)
 132                 {
 133                 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
 134                 goto err;
 135                 }
 136
 137         if (off)
 138                 {
 139                 if (off > 128) off=128;
 140                 memset(str,' ',off);
 141                 }
 142         if (x->d != NULL)
 143                 {
 144                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 145                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
 146                         <= 0) goto err;
 147                 }
 148
 149         if (x->d == NULL)
 150                 sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
 151         else
 152                 strcpy(str,"modulus:");
 153         if (!print(bp,str,x->n,m,off)) goto err;
 154         s=(x->d == NULL)?"Exponent:":"publicExponent:";
 155         if (!print(bp,s,x->e,m,off)) goto err;
 156         if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
 157         if (!print(bp,"prime1:",x->p,m,off)) goto err;
 158         if (!print(bp,"prime2:",x->q,m,off)) goto err;
 159         if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
 160         if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
 161         if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
 162         ret=1;
 163 err:
 164         if (m != NULL) OPENSSL_free(m);
 165         return(ret);
 166         }
 167 #endif /* OPENSSL_NO_RSA */
 168
 169 #ifndef OPENSSL_NO_DSA
 170 #ifndef OPENSSL_NO_FP_API
 171 int DSA_print_fp(FILE *fp, const DSA *x, int off)
 172         {
 173         BIO *b;
 174         int ret;
 175
 176         if ((b=BIO_new(BIO_s_file())) == NULL)
 177                 {
 178                 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
 179                 return(0);
 180                 }
 181         BIO_set_fp(b,fp,BIO_NOCLOSE);
 182         ret=DSA_print(b,x,off);
 183         BIO_free(b);
 184         return(ret);
 185         }
 186 #endif
 187
 188 int DSA_print(BIO *bp, const DSA *x, int off)
 189         {
 190         char str[128];
 191         unsigned char *m=NULL;
 192         int ret=0;
 193         size_t buf_len=0,i;
 194
 195         if (x->p)
 196                 buf_len = (size_t)BN_num_bytes(x->p);
 197         if (x->q)
 198                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 199                         buf_len = i;
 200         if (x->g)
 201                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 202                         buf_len = i;
 203         if (x->priv_key)
 204                 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
 205                         buf_len = i;
 206         if (x->pub_key)
 207                 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
 208                         buf_len = i;
 209
 210         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 211         if (m == NULL)
 212                 {
 213                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 214                 goto err;
 215                 }
 216
 217         if (off)
 218                 {
 219                 if (off > 128) off=128;
 220                 memset(str,' ',off);
 221                 }
 222         if (x->priv_key != NULL)
 223                 {
 224                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 225                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 226                         <= 0) goto err;
 227                 }
 228
 229         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 230                 goto err;
 231         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 232                 goto err;
 233         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 234         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 235         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 236         ret=1;
 237 err:
 238         if (m != NULL) OPENSSL_free(m);
 239         return(ret);
 240         }
 241 #endif /* !OPENSSL_NO_DSA */
 242
 243 #ifndef OPENSSL_NO_EC
 244 #ifndef OPENSSL_NO_FP_API
 245 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
 246         {
 247         BIO *b;
 248         int ret;
 249
 250         if ((b=BIO_new(BIO_s_file())) == NULL)
 251                 {
 252                 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB);
 253                 return(0);
 254                 }
 255         BIO_set_fp(b, fp, BIO_NOCLOSE);
 256         ret = ECPKParameters_print(b, x, off);
 257         BIO_free(b);
 258         return(ret);
 259         }
 260 #endif
 261
 262 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
 263         {
 264         char str[128];
 265         unsigned char *buffer=NULL;
 266         size_t  buf_len=0, i;
 267         int     ret=0, reason=ERR_R_BIO_LIB;
 268         BN_CTX  *ctx=NULL;
 269         EC_POINT *point=NULL;
 270         BIGNUM  *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
 271                 *order=NULL, *cofactor=NULL, *seed=NULL;
 272
 273         static const char *gen_compressed = "Generator (compressed):";
 274         static const char *gen_uncompressed = "Generator (uncompressed):";
 275         static const char *gen_hybrid = "Generator (hybrid):";
 276
 277         if (!x)
 278                 {
 279                 reason = ERR_R_PASSED_NULL_PARAMETER;
 280                 goto err;
 281                 }
 282
 283         if (EC_GROUP_get_asn1_flag(x))
 284                 {
 285                 /* the curve parameter are given by an asn1 OID */
 286                 int nid;
 287
 288                 if (off)
 289                         {
 290                         if (off > 128)
 291                                 off=128;
 292                         memset(str, ' ', off);
 293                         if (BIO_write(bp, str, off) <= 0)
 294                                 goto err;
 295                         }
 296
 297                 nid = EC_GROUP_get_nid(x);
 298                 if (nid == 0)
 299                         goto err;
 300
 301                 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
 302                         goto err;
 303                 if (BIO_printf(bp, "\n") <= 0)
 304                         goto err;
 305                 }
 306         else
 307                 {
 308                 /* explicit parameters */
 309                 /* TODO */
 310                 point_conversion_form_t form;
 311
 312                 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
 313                         (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
 314                         (cofactor = BN_new()) == NULL)
 315                         {
 316                         reason = ERR_R_MALLOC_FAILURE;
 317                         goto err;
 318                         }
 319
 320                 if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
 321                         {
 322                         reason = ERR_R_EC_LIB;
 323                         goto err;
 324                         }
 325
 326                 if ((point = EC_GROUP_get0_generator(x)) == NULL)
 327                         {
 328                         reason = ERR_R_EC_LIB;
 329                         goto err;
 330                         }
 331                 if (!EC_GROUP_get_order(x, order, NULL) ||
 332                         !EC_GROUP_get_cofactor(x, cofactor, NULL))
 333                         {
 334                         reason = ERR_R_EC_LIB;
 335                         goto err;
 336                         }
 337
 338                 form = EC_GROUP_get_point_conversion_form(x);
 339
 340                 if ((gen = EC_POINT_point2bn(x, point,
 341                                 form, NULL, ctx)) == NULL)
 342                         {
 343                         reason = ERR_R_EC_LIB;
 344                         goto err;
 345                         }
 346
 347                 buf_len = (size_t)BN_num_bytes(p);
 348                 if (buf_len < (i = (size_t)BN_num_bytes(a)))
 349                         buf_len = i;
 350                 if (buf_len < (i = (size_t)BN_num_bytes(b)))
 351                         buf_len = i;
 352                 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
 353                         buf_len = i;
 354                 if (buf_len < (i = (size_t)BN_num_bytes(order)))
 355                         buf_len = i;
 356                 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
 357                         buf_len = i;
 358
 359                 if (EC_GROUP_get0_seed(x))
 360                         {
 361                         seed = BN_bin2bn(EC_GROUP_get0_seed(x),
 362                                 EC_GROUP_get_seed_len(x), NULL);
 363                         if (seed == NULL)
 364                                 {
 365                                 reason = ERR_R_BN_LIB;
 366                                 goto err;
 367                                 }
 368                         if (buf_len < (i = (size_t)BN_num_bytes(seed)))
 369                                 buf_len = i;
 370                         }
 371
 372                 buf_len += 10;
 373                 if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 374                         {
 375                         reason = ERR_R_MALLOC_FAILURE;
 376                         goto err;
 377                         }
 378                 if (off)
 379                         {
 380                         if (off > 128) off=128;
 381                         memset(str,' ',off);
 382                         }
 383
 384                 if ((p != NULL) && !print(bp, "P:   ", p, buffer, off))
 385                         goto err;
 386                 if ((a != NULL) && !print(bp, "A:   ", a, buffer, off))
 387                         goto err;
 388                 if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
 389                         goto err;
 390                 if (form == POINT_CONVERSION_COMPRESSED)
 391                         {
 392                         if ((gen != NULL) && !print(bp, gen_compressed, gen,
 393                                 buffer, off))
 394                                 goto err;
 395                         }
 396                 else if (form == POINT_CONVERSION_UNCOMPRESSED)
 397                         {
 398                         if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
 399                                 buffer, off))
 400                                 goto err;
 401                         }
 402                 else /* form == POINT_CONVERSION_HYBRID */
 403                         {
 404                         if ((gen != NULL) && !print(bp, gen_hybrid, gen,
 405                                 buffer, off))
 406                                 goto err;
 407                         }
 408                 if ((order != NULL) && !print(bp, "Order: ", order,
 409                         buffer, off)) goto err;
 410                 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
 411                         buffer, off)) goto err;
 412                 if ((seed != NULL) && !print(bp, "Seed:", seed,
 413                         buffer, off)) goto err;
 414                 }
 415         ret=1;
 416 err:
 417         if (!ret)
 418                 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
 419         if (p)
 420                 BN_free(p);
 421         if (a)
 422                 BN_free(a);
 423         if (b)
 424                 BN_free(b);
 425         if (gen)
 426                 BN_free(gen);
 427         if (order)
 428                 BN_free(order);
 429         if (cofactor)
 430                 BN_free(cofactor);
 431         if (seed)
 432                 BN_free(seed);
 433         if (ctx)
 434                 BN_CTX_free(ctx);
 435         if (buffer != NULL)
 436                 OPENSSL_free(buffer);
 437         return(ret);
 438         }
 439 #endif /* OPENSSL_NO_EC */
 440
 441
 442 #ifndef OPENSSL_NO_ECDSA
 443 #ifndef OPENSSL_NO_FP_API
 444 int ECDSA_print_fp(FILE *fp, const ECDSA *x, int off)
 445 {
 446         BIO *b;
 447         int ret;
 448
 449         if ((b=BIO_new(BIO_s_file())) == NULL)
 450         {
 451                 ECDSAerr(ECDSA_F_ECDSA_PRINT_FP, ERR_R_BIO_LIB);
 452                 return(0);
 453         }
 454         BIO_set_fp(b, fp, BIO_NOCLOSE);
 455         ret = ECDSA_print(b, x, off);
 456         BIO_free(b);
 457         return(ret);
 458 }
 459 #endif
 460
 461 int ECDSA_print(BIO *bp, const ECDSA *x, int off)
 462         {
 463         char str[128];
 464         unsigned char *buffer=NULL;
 465         size_t  buf_len=0, i;
 466         int     ret=0, reason=ERR_R_BIO_LIB;
 467         BIGNUM  *pub_key=NULL;
 468         BN_CTX  *ctx=NULL;
 469
 470         if (!x || !x->group)
 471                 {
 472                 reason = ERR_R_PASSED_NULL_PARAMETER;
 473                 goto err;
 474                 }
 475
 476         if ((pub_key = EC_POINT_point2bn(x->group, x->pub_key,
 477                 ECDSA_get_conversion_form(x), NULL, ctx)) == NULL)
 478                 {
 479                 reason = ERR_R_EC_LIB;
 480                 goto err;
 481                 }
 482
 483         buf_len = (size_t)BN_num_bytes(pub_key);
 484         if (x->priv_key)
 485                 {
 486                 if ((i = (size_t)BN_num_bytes(x->priv_key)) > buf_len)
 487                         buf_len = i;
 488                 }
 489
 490         buf_len += 10;
 491         if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 492                 {
 493                 reason = ERR_R_MALLOC_FAILURE;
 494                 goto err;
 495                 }
 496         if (off)
 497                 {
 498                 if (off > 128) off=128;
 499                 memset(str,' ',off);
 500                 }
 501         if (x->priv_key != NULL)
 502                 {
 503                 if (off && (BIO_write(bp, str, off) <= 0)) goto err;
 504                 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
 505                         BN_num_bits(x->priv_key)) <= 0) goto err;
 506                 }
 507
 508         if ((x->priv_key != NULL) && !print(bp, "priv:", x->priv_key,
 509                 buffer, off))
 510                 goto err;
 511         if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
 512                 buffer, off))
 513                 goto err;
 514         if (!ECPKParameters_print(bp, x->group, off))
 515                 goto err;
 516         ret=1;
 517 err:
 518         if (!ret)
 519                 ECDSAerr(ECDSA_F_ECDSA_PRINT, reason);
 520         if (pub_key)
 521                 BN_free(pub_key);
 522         if (ctx)
 523                 BN_CTX_free(ctx);
 524         if (buffer != NULL)
 525                 OPENSSL_free(buffer);
 526         return(ret);
 527         }
 528 #endif
 529
 530 static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
 531              int off)
 532         {
 533         int n,i;
 534         char str[128];
 535         const char *neg;
 536
 537         if (num == NULL) return(1);
 538         neg=(num->neg)?"-":"";
 539         if (off)
 540                 {
 541                 if (off > 128) off=128;
 542                 memset(str,' ',off);
 543                 if (BIO_write(bp,str,off) <= 0) return(0);
 544                 }
 545
 546         if (BN_num_bytes(num) <= BN_BYTES)
 547                 {
 548                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 549                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 550                         <= 0) return(0);
 551                 }
 552         else
 553                 {
 554                 buf[0]=0;
 555                 if (BIO_printf(bp,"%s%s",number,
 556                         (neg[0] == '-')?" (Negative)":"") <= 0)
 557                         return(0);
 558                 n=BN_bn2bin(num,&buf[1]);
 559
 560                 if (buf[1] & 0x80)
 561                         n++;
 562                 else    buf++;
 563
 564                 for (i=0; i<n; i++)
 565                         {
 566                         if ((i%15) == 0)
 567                                 {
 568                                 str[0]='\n';
 569                                 memset(&(str[1]),' ',off+4);
 570                                 if (BIO_write(bp,str,off+1+4) <= 0) return(0);
 571                                 }
 572                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 573                                 <= 0) return(0);
 574                         }
 575                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 576                 }
 577         return(1);
 578         }
 579
 580 #ifndef OPENSSL_NO_DH
 581 #ifndef OPENSSL_NO_FP_API
 582 int DHparams_print_fp(FILE *fp, const DH *x)
 583         {
 584         BIO *b;
 585         int ret;
 586
 587         if ((b=BIO_new(BIO_s_file())) == NULL)
 588                 {
 589                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 590                 return(0);
 591                 }
 592         BIO_set_fp(b,fp,BIO_NOCLOSE);
 593         ret=DHparams_print(b, x);
 594         BIO_free(b);
 595         return(ret);
 596         }
 597 #endif
 598
 599 int DHparams_print(BIO *bp, const DH *x)
 600         {
 601         unsigned char *m=NULL;
 602         int reason=ERR_R_BUF_LIB,ret=0;
 603         size_t buf_len=0, i;
 604
 605         if (x->p)
 606                 buf_len = (size_t)BN_num_bytes(x->p);
 607         if (x->g)
 608                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 609                         buf_len = i;
 610         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 611         if (m == NULL)
 612                 {
 613                 reason=ERR_R_MALLOC_FAILURE;
 614                 goto err;
 615                 }
 616
 617         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 618                 BN_num_bits(x->p)) <= 0)
 619                 goto err;
 620         if (!print(bp,"prime:",x->p,m,4)) goto err;
 621         if (!print(bp,"generator:",x->g,m,4)) goto err;
 622         if (x->length != 0)
 623                 {
 624                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 625                         (int)x->length) <= 0) goto err;
 626                 }
 627         ret=1;
 628         if (0)
 629                 {
 630 err:
 631                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 632                 }
 633         if (m != NULL) OPENSSL_free(m);
 634         return(ret);
 635         }
 636 #endif
 637
 638 #ifndef OPENSSL_NO_DSA
 639 #ifndef OPENSSL_NO_FP_API
 640 int DSAparams_print_fp(FILE *fp, const DSA *x)
 641         {
 642         BIO *b;
 643         int ret;
 644
 645         if ((b=BIO_new(BIO_s_file())) == NULL)
 646                 {
 647                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 648                 return(0);
 649                 }
 650         BIO_set_fp(b,fp,BIO_NOCLOSE);
 651         ret=DSAparams_print(b, x);
 652         BIO_free(b);
 653         return(ret);
 654         }
 655 #endif
 656
 657 int DSAparams_print(BIO *bp, const DSA *x)
 658         {
 659         unsigned char *m=NULL;
 660         int reason=ERR_R_BUF_LIB,ret=0;
 661         size_t buf_len=0,i;
 662
 663         if (x->p)
 664                 buf_len = (size_t)BN_num_bytes(x->p);
 665         if (x->q)
 666                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 667                         buf_len = i;
 668         if (x->g)
 669                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 670                         buf_len = i;
 671         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 672         if (m == NULL)
 673                 {
 674                 reason=ERR_R_MALLOC_FAILURE;
 675                 goto err;
 676                 }
 677
 678         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 679                 BN_num_bits(x->p)) <= 0)
 680                 goto err;
 681         if (!print(bp,"p:",x->p,m,4)) goto err;
 682         if (!print(bp,"q:",x->q,m,4)) goto err;
 683         if (!print(bp,"g:",x->g,m,4)) goto err;
 684         ret=1;
 685 err:
 686         if (m != NULL) OPENSSL_free(m);
 687         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 688         return(ret);
 689         }
 690
 691 #endif /* !OPENSSL_NO_DSA */
 692
 693 #ifndef OPENSSL_NO_ECDSA
 694 #ifndef OPENSSL_NO_FP_API
 695 int ECDSAParameters_print_fp(FILE *fp, const ECDSA *x)
 696         {
 697         BIO *b;
 698         int ret;
 699
 700         if ((b=BIO_new(BIO_s_file())) == NULL)
 701         {
 702                 ECDSAerr(ECDSA_F_ECDSAPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
 703                 return(0);
 704         }
 705         BIO_set_fp(b, fp, BIO_NOCLOSE);
 706         ret = ECDSAParameters_print(b, x);
 707         BIO_free(b);
 708         return(ret);
 709         }
 710 #endif
 711
 712 int ECDSAParameters_print(BIO *bp, const ECDSA *x)
 713         {
 714         int     reason=ERR_R_EC_LIB, ret=0;
 715         BIGNUM  *order=NULL;
 716
 717         if (!x || !x->group)
 718                 {
 719                 reason = ERR_R_PASSED_NULL_PARAMETER;;
 720                 goto err;
 721                 }
 722
 723         if ((order = BN_new()) == NULL)
 724                 {
 725                 reason = ERR_R_MALLOC_FAILURE;
 726                 goto err;
 727                 }
 728
 729         if (!EC_GROUP_get_order(x->group, order, NULL))
 730                 {
 731                 reason = ERR_R_EC_LIB;
 732                 goto err;
 733                 }
 734
 735         if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
 736                 BN_num_bits(order)) <= 0)
 737                 goto err;
 738         if (!ECPKParameters_print(bp, x->group, 4))
 739                 goto err;
 740         ret=1;
 741 err:
 742         if (order)
 743                 BN_free(order);
 744         ECDSAerr(ECDSA_F_ECDSAPARAMETERS_PRINT, reason);
 745         return(ret);
 746         }
 747
 748 #endif