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_EC
  74 #include <openssl/ec.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
 261 int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
 262         {
 263         BIO *b;
 264         int ret;
 265
 266         if ((b=BIO_new(BIO_s_file())) == NULL)
 267                 {
 268                 ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
 269                 return(0);
 270                 }
 271         BIO_set_fp(b, fp, BIO_NOCLOSE);
 272         ret = EC_KEY_print(b, x, off);
 273         BIO_free(b);
 274         return(ret);
 275         }
 276 #endif
 277
 278 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
 279         {
 280         char str[128];
 281         unsigned char *buffer=NULL;
 282         size_t  buf_len=0, i;
 283         int     ret=0, reason=ERR_R_BIO_LIB;
 284         BN_CTX  *ctx=NULL;
 285         EC_POINT *point=NULL;
 286         BIGNUM  *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
 287                 *order=NULL, *cofactor=NULL, *seed=NULL;
 288
 289         static const char *gen_compressed = "Generator (compressed):";
 290         static const char *gen_uncompressed = "Generator (uncompressed):";
 291         static const char *gen_hybrid = "Generator (hybrid):";
 292
 293         if (!x)
 294                 {
 295                 reason = ERR_R_PASSED_NULL_PARAMETER;
 296                 goto err;
 297                 }
 298
 299         if (EC_GROUP_get_asn1_flag(x))
 300                 {
 301                 /* the curve parameter are given by an asn1 OID */
 302                 int nid;
 303
 304                 if (off)
 305                         {
 306                         if (off > 128)
 307                                 off=128;
 308                         memset(str, ' ', off);
 309                         if (BIO_write(bp, str, off) <= 0)
 310                                 goto err;
 311                         }
 312
 313                 nid = EC_GROUP_get_nid(x);
 314                 if (nid == 0)
 315                         goto err;
 316
 317                 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
 318                         goto err;
 319                 if (BIO_printf(bp, "\n") <= 0)
 320                         goto err;
 321                 }
 322         else
 323                 {
 324                 /* explicit parameters */
 325                 /* TODO */
 326                 point_conversion_form_t form;
 327
 328                 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
 329                         (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
 330                         (cofactor = BN_new()) == NULL)
 331                         {
 332                         reason = ERR_R_MALLOC_FAILURE;
 333                         goto err;
 334                         }
 335
 336                 if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
 337                         {
 338                         reason = ERR_R_EC_LIB;
 339                         goto err;
 340                         }
 341
 342                 if ((point = EC_GROUP_get0_generator(x)) == NULL)
 343                         {
 344                         reason = ERR_R_EC_LIB;
 345                         goto err;
 346                         }
 347                 if (!EC_GROUP_get_order(x, order, NULL) ||
 348                         !EC_GROUP_get_cofactor(x, cofactor, NULL))
 349                         {
 350                         reason = ERR_R_EC_LIB;
 351                         goto err;
 352                         }
 353
 354                 form = EC_GROUP_get_point_conversion_form(x);
 355
 356                 if ((gen = EC_POINT_point2bn(x, point,
 357                                 form, NULL, ctx)) == NULL)
 358                         {
 359                         reason = ERR_R_EC_LIB;
 360                         goto err;
 361                         }
 362
 363                 buf_len = (size_t)BN_num_bytes(p);
 364                 if (buf_len < (i = (size_t)BN_num_bytes(a)))
 365                         buf_len = i;
 366                 if (buf_len < (i = (size_t)BN_num_bytes(b)))
 367                         buf_len = i;
 368                 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
 369                         buf_len = i;
 370                 if (buf_len < (i = (size_t)BN_num_bytes(order)))
 371                         buf_len = i;
 372                 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
 373                         buf_len = i;
 374
 375                 if (EC_GROUP_get0_seed(x))
 376                         {
 377                         seed = BN_bin2bn(EC_GROUP_get0_seed(x),
 378                                 EC_GROUP_get_seed_len(x), NULL);
 379                         if (seed == NULL)
 380                                 {
 381                                 reason = ERR_R_BN_LIB;
 382                                 goto err;
 383                                 }
 384                         if (buf_len < (i = (size_t)BN_num_bytes(seed)))
 385                                 buf_len = i;
 386                         }
 387
 388                 buf_len += 10;
 389                 if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 390                         {
 391                         reason = ERR_R_MALLOC_FAILURE;
 392                         goto err;
 393                         }
 394                 if (off)
 395                         {
 396                         if (off > 128) off=128;
 397                         memset(str,' ',off);
 398                         }
 399
 400                 if ((p != NULL) && !print(bp, "P:   ", p, buffer, off))
 401                         goto err;
 402                 if ((a != NULL) && !print(bp, "A:   ", a, buffer, off))
 403                         goto err;
 404                 if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
 405                         goto err;
 406                 if (form == POINT_CONVERSION_COMPRESSED)
 407                         {
 408                         if ((gen != NULL) && !print(bp, gen_compressed, gen,
 409                                 buffer, off))
 410                                 goto err;
 411                         }
 412                 else if (form == POINT_CONVERSION_UNCOMPRESSED)
 413                         {
 414                         if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
 415                                 buffer, off))
 416                                 goto err;
 417                         }
 418                 else /* form == POINT_CONVERSION_HYBRID */
 419                         {
 420                         if ((gen != NULL) && !print(bp, gen_hybrid, gen,
 421                                 buffer, off))
 422                                 goto err;
 423                         }
 424                 if ((order != NULL) && !print(bp, "Order: ", order,
 425                         buffer, off)) goto err;
 426                 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
 427                         buffer, off)) goto err;
 428                 if ((seed != NULL) && !print(bp, "Seed:", seed,
 429                         buffer, off)) goto err;
 430                 }
 431         ret=1;
 432 err:
 433         if (!ret)
 434                 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
 435         if (p)
 436                 BN_free(p);
 437         if (a)
 438                 BN_free(a);
 439         if (b)
 440                 BN_free(b);
 441         if (gen)
 442                 BN_free(gen);
 443         if (order)
 444                 BN_free(order);
 445         if (cofactor)
 446                 BN_free(cofactor);
 447         if (seed)
 448                 BN_free(seed);
 449         if (ctx)
 450                 BN_CTX_free(ctx);
 451         if (buffer != NULL)
 452                 OPENSSL_free(buffer);
 453         return(ret);
 454         }
 455
 456 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
 457         {
 458         char str[128];
 459         unsigned char *buffer=NULL;
 460         size_t  buf_len=0, i;
 461         int     ret=0, reason=ERR_R_BIO_LIB;
 462         BIGNUM  *pub_key=NULL;
 463         BN_CTX  *ctx=NULL;
 464
 465         if (!x || !x->group)
 466                 {
 467                 reason = ERR_R_PASSED_NULL_PARAMETER;
 468                 goto err;
 469                 }
 470
 471         if ((pub_key = EC_POINT_point2bn(x->group, x->pub_key,
 472                 x->conv_form, NULL, ctx)) == NULL)
 473                 {
 474                 reason = ERR_R_EC_LIB;
 475                 goto err;
 476                 }
 477
 478         buf_len = (size_t)BN_num_bytes(pub_key);
 479         if (x->priv_key)
 480                 {
 481                 if ((i = (size_t)BN_num_bytes(x->priv_key)) > buf_len)
 482                         buf_len = i;
 483                 }
 484
 485         buf_len += 10;
 486         if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 487                 {
 488                 reason = ERR_R_MALLOC_FAILURE;
 489                 goto err;
 490                 }
 491         if (off)
 492                 {
 493                 if (off > 128) off=128;
 494                 memset(str,' ',off);
 495                 }
 496         if (x->priv_key != NULL)
 497                 {
 498                 if (off && (BIO_write(bp, str, off) <= 0)) goto err;
 499                 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
 500                         BN_num_bits(x->priv_key)) <= 0) goto err;
 501                 }
 502
 503         if ((x->priv_key != NULL) && !print(bp, "priv:", x->priv_key,
 504                 buffer, off))
 505                 goto err;
 506         if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
 507                 buffer, off))
 508                 goto err;
 509         if (!ECPKParameters_print(bp, x->group, off))
 510                 goto err;
 511         ret=1;
 512 err:
 513         if (!ret)
 514                 ECerr(EC_F_EC_KEY_PRINT, reason);
 515         if (pub_key)
 516                 BN_free(pub_key);
 517         if (ctx)
 518                 BN_CTX_free(ctx);
 519         if (buffer != NULL)
 520                 OPENSSL_free(buffer);
 521         return(ret);
 522         }
 523 #endif /* OPENSSL_NO_EC */
 524
 525 static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
 526              int off)
 527         {
 528         int n,i;
 529         char str[128];
 530         const char *neg;
 531
 532         if (num == NULL) return(1);
 533         neg=(num->neg)?"-":"";
 534         if (off)
 535                 {
 536                 if (off > 128) off=128;
 537                 memset(str,' ',off);
 538                 if (BIO_write(bp,str,off) <= 0) return(0);
 539                 }
 540
 541         if (BN_num_bytes(num) <= BN_BYTES)
 542                 {
 543                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 544                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 545                         <= 0) return(0);
 546                 }
 547         else
 548                 {
 549                 buf[0]=0;
 550                 if (BIO_printf(bp,"%s%s",number,
 551                         (neg[0] == '-')?" (Negative)":"") <= 0)
 552                         return(0);
 553                 n=BN_bn2bin(num,&buf[1]);
 554
 555                 if (buf[1] & 0x80)
 556                         n++;
 557                 else    buf++;
 558
 559                 for (i=0; i<n; i++)
 560                         {
 561                         if ((i%15) == 0)
 562                                 {
 563                                 str[0]='\n';
 564                                 memset(&(str[1]),' ',off+4);
 565                                 if (BIO_write(bp,str,off+1+4) <= 0) return(0);
 566                                 }
 567                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 568                                 <= 0) return(0);
 569                         }
 570                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 571                 }
 572         return(1);
 573         }
 574
 575 #ifndef OPENSSL_NO_DH
 576 #ifndef OPENSSL_NO_FP_API
 577 int DHparams_print_fp(FILE *fp, const DH *x)
 578         {
 579         BIO *b;
 580         int ret;
 581
 582         if ((b=BIO_new(BIO_s_file())) == NULL)
 583                 {
 584                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 585                 return(0);
 586                 }
 587         BIO_set_fp(b,fp,BIO_NOCLOSE);
 588         ret=DHparams_print(b, x);
 589         BIO_free(b);
 590         return(ret);
 591         }
 592 #endif
 593
 594 int DHparams_print(BIO *bp, const DH *x)
 595         {
 596         unsigned char *m=NULL;
 597         int reason=ERR_R_BUF_LIB,ret=0;
 598         size_t buf_len=0, i;
 599
 600         if (x->p)
 601                 buf_len = (size_t)BN_num_bytes(x->p);
 602         if (x->g)
 603                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 604                         buf_len = i;
 605         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 606         if (m == NULL)
 607                 {
 608                 reason=ERR_R_MALLOC_FAILURE;
 609                 goto err;
 610                 }
 611
 612         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 613                 BN_num_bits(x->p)) <= 0)
 614                 goto err;
 615         if (!print(bp,"prime:",x->p,m,4)) goto err;
 616         if (!print(bp,"generator:",x->g,m,4)) goto err;
 617         if (x->length != 0)
 618                 {
 619                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 620                         (int)x->length) <= 0) goto err;
 621                 }
 622         ret=1;
 623         if (0)
 624                 {
 625 err:
 626                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 627                 }
 628         if (m != NULL) OPENSSL_free(m);
 629         return(ret);
 630         }
 631 #endif
 632
 633 #ifndef OPENSSL_NO_DSA
 634 #ifndef OPENSSL_NO_FP_API
 635 int DSAparams_print_fp(FILE *fp, const DSA *x)
 636         {
 637         BIO *b;
 638         int ret;
 639
 640         if ((b=BIO_new(BIO_s_file())) == NULL)
 641                 {
 642                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 643                 return(0);
 644                 }
 645         BIO_set_fp(b,fp,BIO_NOCLOSE);
 646         ret=DSAparams_print(b, x);
 647         BIO_free(b);
 648         return(ret);
 649         }
 650 #endif
 651
 652 int DSAparams_print(BIO *bp, const DSA *x)
 653         {
 654         unsigned char *m=NULL;
 655         int reason=ERR_R_BUF_LIB,ret=0;
 656         size_t buf_len=0,i;
 657
 658         if (x->p)
 659                 buf_len = (size_t)BN_num_bytes(x->p);
 660         if (x->q)
 661                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 662                         buf_len = i;
 663         if (x->g)
 664                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 665                         buf_len = i;
 666         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 667         if (m == NULL)
 668                 {
 669                 reason=ERR_R_MALLOC_FAILURE;
 670                 goto err;
 671                 }
 672
 673         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 674                 BN_num_bits(x->p)) <= 0)
 675                 goto err;
 676         if (!print(bp,"p:",x->p,m,4)) goto err;
 677         if (!print(bp,"q:",x->q,m,4)) goto err;
 678         if (!print(bp,"g:",x->g,m,4)) goto err;
 679         ret=1;
 680 err:
 681         if (m != NULL) OPENSSL_free(m);
 682         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 683         return(ret);
 684         }
 685
 686 #endif /* !OPENSSL_NO_DSA */
 687
 688 #ifndef OPENSSL_NO_EC
 689 #ifndef OPENSSL_NO_FP_API
 690 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
 691         {
 692         BIO *b;
 693         int ret;
 694
 695         if ((b=BIO_new(BIO_s_file())) == NULL)
 696                 {
 697                 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
 698                 return(0);
 699                 }
 700         BIO_set_fp(b, fp, BIO_NOCLOSE);
 701         ret = ECParameters_print(b, x);
 702         BIO_free(b);
 703         return(ret);
 704         }
 705 #endif
 706
 707 int ECParameters_print(BIO *bp, const EC_KEY *x)
 708         {
 709         int     reason=ERR_R_EC_LIB, ret=0;
 710         BIGNUM  *order=NULL;
 711
 712         if (!x || !x->group)
 713                 {
 714                 reason = ERR_R_PASSED_NULL_PARAMETER;;
 715                 goto err;
 716                 }
 717
 718         if ((order = BN_new()) == NULL)
 719                 {
 720                 reason = ERR_R_MALLOC_FAILURE;
 721                 goto err;
 722                 }
 723
 724         if (!EC_GROUP_get_order(x->group, order, NULL))
 725                 {
 726                 reason = ERR_R_EC_LIB;
 727                 goto err;
 728                 }
 729
 730         if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
 731                 BN_num_bits(order)) <= 0)
 732                 goto err;
 733         if (!ECPKParameters_print(bp, x->group, 4))
 734                 goto err;
 735         ret=1;
 736 err:
 737         if (order)
 738                 BN_free(order);
 739         ECerr(EC_F_ECPARAMETERS_PRINT, reason);
 740         return(ret);
 741         }
 742
 743 #endif