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  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  60  * Binary polynomial ECC support in OpenSSL originally developed by
  61  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
  62  */
  63
  64 #include <stdio.h>
  65 #include "cryptlib.h"
  66 #include <openssl/objects.h>
  67 #include <openssl/buffer.h>
  68 #include <openssl/bn.h>
  69 #ifndef OPENSSL_NO_RSA
  70 #include <openssl/rsa.h>
  71 #endif
  72 #ifndef OPENSSL_NO_DH
  73 #include <openssl/dh.h>
  74 #endif
  75 #ifndef OPENSSL_NO_DSA
  76 #include <openssl/dsa.h>
  77 #endif
  78 #ifndef OPENSSL_NO_EC
  79 #include <openssl/ec.h>
  80 #endif
  81
  82 static int print(BIO *fp,const char *str,BIGNUM *num,
  83                 unsigned char *buf,int off);
  84 #ifndef OPENSSL_NO_RSA
  85 #ifndef OPENSSL_NO_FP_API
  86 int RSA_print_fp(FILE *fp, const RSA *x, int off)
  87         {
  88         BIO *b;
  89         int ret;
  90
  91         if ((b=BIO_new(BIO_s_file())) == NULL)
  92                 {
  93                 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
  94                 return(0);
  95                 }
  96         BIO_set_fp(b,fp,BIO_NOCLOSE);
  97         ret=RSA_print(b,x,off);
  98         BIO_free(b);
  99         return(ret);
 100         }
 101 #endif
 102
 103 int RSA_print(BIO *bp, const RSA *x, int off)
 104         {
 105         char str[128];
 106         const char *s;
 107         unsigned char *m=NULL;
 108         int ret=0;
 109         size_t buf_len=0, i;
 110
 111         if (x->n)
 112                 buf_len = (size_t)BN_num_bytes(x->n);
 113         if (x->e)
 114                 if (buf_len < (i = (size_t)BN_num_bytes(x->e)))
 115                         buf_len = i;
 116         if (x->d)
 117                 if (buf_len < (i = (size_t)BN_num_bytes(x->d)))
 118                         buf_len = i;
 119         if (x->p)
 120                 if (buf_len < (i = (size_t)BN_num_bytes(x->p)))
 121                         buf_len = i;
 122         if (x->q)
 123                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 124                         buf_len = i;
 125         if (x->dmp1)
 126                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmp1)))
 127                         buf_len = i;
 128         if (x->dmq1)
 129                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmq1)))
 130                         buf_len = i;
 131         if (x->iqmp)
 132                 if (buf_len < (i = (size_t)BN_num_bytes(x->iqmp)))
 133                         buf_len = i;
 134
 135         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 136         if (m == NULL)
 137                 {
 138                 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
 139                 goto err;
 140                 }
 141
 142         if (off)
 143                 {
 144                 if (off > 128) off=128;
 145                 memset(str,' ',off);
 146                 }
 147         if (x->d != NULL)
 148                 {
 149                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 150                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
 151                         <= 0) goto err;
 152                 }
 153
 154         if (x->d == NULL)
 155                 sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
 156         else
 157                 strcpy(str,"modulus:");
 158         if (!print(bp,str,x->n,m,off)) goto err;
 159         s=(x->d == NULL)?"Exponent:":"publicExponent:";
 160         if (!print(bp,s,x->e,m,off)) goto err;
 161         if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
 162         if (!print(bp,"prime1:",x->p,m,off)) goto err;
 163         if (!print(bp,"prime2:",x->q,m,off)) goto err;
 164         if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
 165         if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
 166         if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
 167         ret=1;
 168 err:
 169         if (m != NULL) OPENSSL_free(m);
 170         return(ret);
 171         }
 172 #endif /* OPENSSL_NO_RSA */
 173
 174 #ifndef OPENSSL_NO_DSA
 175 #ifndef OPENSSL_NO_FP_API
 176 int DSA_print_fp(FILE *fp, const DSA *x, int off)
 177         {
 178         BIO *b;
 179         int ret;
 180
 181         if ((b=BIO_new(BIO_s_file())) == NULL)
 182                 {
 183                 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
 184                 return(0);
 185                 }
 186         BIO_set_fp(b,fp,BIO_NOCLOSE);
 187         ret=DSA_print(b,x,off);
 188         BIO_free(b);
 189         return(ret);
 190         }
 191 #endif
 192
 193 int DSA_print(BIO *bp, const DSA *x, int off)
 194         {
 195         char str[128];
 196         unsigned char *m=NULL;
 197         int ret=0;
 198         size_t buf_len=0,i;
 199
 200         if (x->p)
 201                 buf_len = (size_t)BN_num_bytes(x->p);
 202         if (x->q)
 203                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 204                         buf_len = i;
 205         if (x->g)
 206                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 207                         buf_len = i;
 208         if (x->priv_key)
 209                 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
 210                         buf_len = i;
 211         if (x->pub_key)
 212                 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
 213                         buf_len = i;
 214
 215         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 216         if (m == NULL)
 217                 {
 218                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 219                 goto err;
 220                 }
 221
 222         if (off)
 223                 {
 224                 if (off > 128) off=128;
 225                 memset(str,' ',off);
 226                 }
 227         if (x->priv_key != NULL)
 228                 {
 229                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 230                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 231                         <= 0) goto err;
 232                 }
 233
 234         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 235                 goto err;
 236         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 237                 goto err;
 238         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 239         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 240         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 241         ret=1;
 242 err:
 243         if (m != NULL) OPENSSL_free(m);
 244         return(ret);
 245         }
 246 #endif /* !OPENSSL_NO_DSA */
 247
 248 #ifndef OPENSSL_NO_EC
 249 #ifndef OPENSSL_NO_FP_API
 250 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
 251         {
 252         BIO *b;
 253         int ret;
 254
 255         if ((b=BIO_new(BIO_s_file())) == NULL)
 256                 {
 257                 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB);
 258                 return(0);
 259                 }
 260         BIO_set_fp(b, fp, BIO_NOCLOSE);
 261         ret = ECPKParameters_print(b, x, off);
 262         BIO_free(b);
 263         return(ret);
 264         }
 265
 266 int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
 267         {
 268         BIO *b;
 269         int ret;
 270
 271         if ((b=BIO_new(BIO_s_file())) == NULL)
 272                 {
 273                 ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
 274                 return(0);
 275                 }
 276         BIO_set_fp(b, fp, BIO_NOCLOSE);
 277         ret = EC_KEY_print(b, x, off);
 278         BIO_free(b);
 279         return(ret);
 280         }
 281 #endif
 282
 283 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
 284         {
 285         char str[128];
 286         unsigned char *buffer=NULL;
 287         size_t  buf_len=0, i;
 288         int     ret=0, reason=ERR_R_BIO_LIB;
 289         BN_CTX  *ctx=NULL;
 290         EC_POINT *point=NULL;
 291         BIGNUM  *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
 292                 *order=NULL, *cofactor=NULL, *seed=NULL;
 293
 294         static const char *gen_compressed = "Generator (compressed):";
 295         static const char *gen_uncompressed = "Generator (uncompressed):";
 296         static const char *gen_hybrid = "Generator (hybrid):";
 297
 298         if (!x)
 299                 {
 300                 reason = ERR_R_PASSED_NULL_PARAMETER;
 301                 goto err;
 302                 }
 303
 304         if (EC_GROUP_get_asn1_flag(x))
 305                 {
 306                 /* the curve parameter are given by an asn1 OID */
 307                 int nid;
 308
 309                 if (off)
 310                         {
 311                         if (off > 128)
 312                                 off=128;
 313                         memset(str, ' ', off);
 314                         if (BIO_write(bp, str, off) <= 0)
 315                                 goto err;
 316                         }
 317
 318                 nid = EC_GROUP_get_nid(x);
 319                 if (nid == 0)
 320                         goto err;
 321
 322                 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
 323                         goto err;
 324                 if (BIO_printf(bp, "\n") <= 0)
 325                         goto err;
 326                 }
 327         else
 328                 {
 329                 /* explicit parameters */
 330                 /* TODO */
 331                 point_conversion_form_t form;
 332
 333                 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
 334                         (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
 335                         (cofactor = BN_new()) == NULL)
 336                         {
 337                         reason = ERR_R_MALLOC_FAILURE;
 338                         goto err;
 339                         }
 340
 341                 if (EC_METHOD_get_field_type(EC_GROUP_method_of(x)) == NID_X9_62_prime_field)
 342                         {
 343                         if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
 344                                 {
 345                                 reason = ERR_R_EC_LIB;
 346                                 goto err;
 347                                 }
 348                         }
 349                 else
 350                         {
 351                         if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx))
 352                                 {
 353                                 reason = ERR_R_EC_LIB;
 354                                 goto err;
 355                                 }
 356                         }
 357
 358                 if ((point = EC_GROUP_get0_generator(x)) == NULL)
 359                         {
 360                         reason = ERR_R_EC_LIB;
 361                         goto err;
 362                         }
 363                 if (!EC_GROUP_get_order(x, order, NULL) ||
 364                         !EC_GROUP_get_cofactor(x, cofactor, NULL))
 365                         {
 366                         reason = ERR_R_EC_LIB;
 367                         goto err;
 368                         }
 369
 370                 form = EC_GROUP_get_point_conversion_form(x);
 371
 372                 if ((gen = EC_POINT_point2bn(x, point,
 373                                 form, NULL, ctx)) == NULL)
 374                         {
 375                         reason = ERR_R_EC_LIB;
 376                         goto err;
 377                         }
 378
 379                 buf_len = (size_t)BN_num_bytes(p);
 380                 if (buf_len < (i = (size_t)BN_num_bytes(a)))
 381                         buf_len = i;
 382                 if (buf_len < (i = (size_t)BN_num_bytes(b)))
 383                         buf_len = i;
 384                 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
 385                         buf_len = i;
 386                 if (buf_len < (i = (size_t)BN_num_bytes(order)))
 387                         buf_len = i;
 388                 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
 389                         buf_len = i;
 390
 391                 if (EC_GROUP_get0_seed(x))
 392                         {
 393                         seed = BN_bin2bn(EC_GROUP_get0_seed(x),
 394                                 EC_GROUP_get_seed_len(x), NULL);
 395                         if (seed == NULL)
 396                                 {
 397                                 reason = ERR_R_BN_LIB;
 398                                 goto err;
 399                                 }
 400                         if (buf_len < (i = (size_t)BN_num_bytes(seed)))
 401                                 buf_len = i;
 402                         }
 403
 404                 buf_len += 10;
 405                 if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 406                         {
 407                         reason = ERR_R_MALLOC_FAILURE;
 408                         goto err;
 409                         }
 410                 if (off)
 411                         {
 412                         if (off > 128) off=128;
 413                         memset(str,' ',off);
 414                         }
 415
 416                 if ((p != NULL) && !print(bp, "P:   ", p, buffer, off))
 417                         goto err;
 418                 if ((a != NULL) && !print(bp, "A:   ", a, buffer, off))
 419                         goto err;
 420                 if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
 421                         goto err;
 422                 if (form == POINT_CONVERSION_COMPRESSED)
 423                         {
 424                         if ((gen != NULL) && !print(bp, gen_compressed, gen,
 425                                 buffer, off))
 426                                 goto err;
 427                         }
 428                 else if (form == POINT_CONVERSION_UNCOMPRESSED)
 429                         {
 430                         if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
 431                                 buffer, off))
 432                                 goto err;
 433                         }
 434                 else /* form == POINT_CONVERSION_HYBRID */
 435                         {
 436                         if ((gen != NULL) && !print(bp, gen_hybrid, gen,
 437                                 buffer, off))
 438                                 goto err;
 439                         }
 440                 if ((order != NULL) && !print(bp, "Order: ", order,
 441                         buffer, off)) goto err;
 442                 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
 443                         buffer, off)) goto err;
 444                 if ((seed != NULL) && !print(bp, "Seed:", seed,
 445                         buffer, off)) goto err;
 446                 }
 447         ret=1;
 448 err:
 449         if (!ret)
 450                 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
 451         if (p)
 452                 BN_free(p);
 453         if (a)
 454                 BN_free(a);
 455         if (b)
 456                 BN_free(b);
 457         if (gen)
 458                 BN_free(gen);
 459         if (order)
 460                 BN_free(order);
 461         if (cofactor)
 462                 BN_free(cofactor);
 463         if (seed)
 464                 BN_free(seed);
 465         if (ctx)
 466                 BN_CTX_free(ctx);
 467         if (buffer != NULL)
 468                 OPENSSL_free(buffer);
 469         return(ret);
 470         }
 471
 472 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
 473         {
 474         char str[128];
 475         unsigned char *buffer=NULL;
 476         size_t  buf_len=0, i;
 477         int     ret=0, reason=ERR_R_BIO_LIB;
 478         BIGNUM  *pub_key=NULL;
 479         BN_CTX  *ctx=NULL;
 480
 481         if (!x || !x->group)
 482                 {
 483                 reason = ERR_R_PASSED_NULL_PARAMETER;
 484                 goto err;
 485                 }
 486
 487         if ((pub_key = EC_POINT_point2bn(x->group, x->pub_key,
 488                 x->conv_form, NULL, ctx)) == NULL)
 489                 {
 490                 reason = ERR_R_EC_LIB;
 491                 goto err;
 492                 }
 493
 494         buf_len = (size_t)BN_num_bytes(pub_key);
 495         if (x->priv_key)
 496                 {
 497                 if ((i = (size_t)BN_num_bytes(x->priv_key)) > buf_len)
 498                         buf_len = i;
 499                 }
 500
 501         buf_len += 10;
 502         if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 503                 {
 504                 reason = ERR_R_MALLOC_FAILURE;
 505                 goto err;
 506                 }
 507         if (off)
 508                 {
 509                 if (off > 128) off=128;
 510                 memset(str,' ',off);
 511                 }
 512         if (x->priv_key != NULL)
 513                 {
 514                 if (off && (BIO_write(bp, str, off) <= 0)) goto err;
 515                 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
 516                         BN_num_bits(x->priv_key)) <= 0) goto err;
 517                 }
 518
 519         if ((x->priv_key != NULL) && !print(bp, "priv:", x->priv_key,
 520                 buffer, off))
 521                 goto err;
 522         if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
 523                 buffer, off))
 524                 goto err;
 525         if (!ECPKParameters_print(bp, x->group, off))
 526                 goto err;
 527         ret=1;
 528 err:
 529         if (!ret)
 530                 ECerr(EC_F_EC_KEY_PRINT, reason);
 531         if (pub_key)
 532                 BN_free(pub_key);
 533         if (ctx)
 534                 BN_CTX_free(ctx);
 535         if (buffer != NULL)
 536                 OPENSSL_free(buffer);
 537         return(ret);
 538         }
 539 #endif /* OPENSSL_NO_EC */
 540
 541 static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
 542              int off)
 543         {
 544         int n,i;
 545         char str[128];
 546         const char *neg;
 547
 548         if (num == NULL) return(1);
 549         neg=(num->neg)?"-":"";
 550         if (off)
 551                 {
 552                 if (off > 128) off=128;
 553                 memset(str,' ',off);
 554                 if (BIO_write(bp,str,off) <= 0) return(0);
 555                 }
 556
 557         if (BN_num_bytes(num) <= BN_BYTES)
 558                 {
 559                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 560                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 561                         <= 0) return(0);
 562                 }
 563         else
 564                 {
 565                 buf[0]=0;
 566                 if (BIO_printf(bp,"%s%s",number,
 567                         (neg[0] == '-')?" (Negative)":"") <= 0)
 568                         return(0);
 569                 n=BN_bn2bin(num,&buf[1]);
 570
 571                 if (buf[1] & 0x80)
 572                         n++;
 573                 else    buf++;
 574
 575                 for (i=0; i<n; i++)
 576                         {
 577                         if ((i%15) == 0)
 578                                 {
 579                                 str[0]='\n';
 580                                 memset(&(str[1]),' ',off+4);
 581                                 if (BIO_write(bp,str,off+1+4) <= 0) return(0);
 582                                 }
 583                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 584                                 <= 0) return(0);
 585                         }
 586                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 587                 }
 588         return(1);
 589         }
 590
 591 #ifndef OPENSSL_NO_DH
 592 #ifndef OPENSSL_NO_FP_API
 593 int DHparams_print_fp(FILE *fp, const DH *x)
 594         {
 595         BIO *b;
 596         int ret;
 597
 598         if ((b=BIO_new(BIO_s_file())) == NULL)
 599                 {
 600                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 601                 return(0);
 602                 }
 603         BIO_set_fp(b,fp,BIO_NOCLOSE);
 604         ret=DHparams_print(b, x);
 605         BIO_free(b);
 606         return(ret);
 607         }
 608 #endif
 609
 610 int DHparams_print(BIO *bp, const DH *x)
 611         {
 612         unsigned char *m=NULL;
 613         int reason=ERR_R_BUF_LIB,ret=0;
 614         size_t buf_len=0, i;
 615
 616         if (x->p)
 617                 buf_len = (size_t)BN_num_bytes(x->p);
 618         if (x->g)
 619                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 620                         buf_len = i;
 621         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 622         if (m == NULL)
 623                 {
 624                 reason=ERR_R_MALLOC_FAILURE;
 625                 goto err;
 626                 }
 627
 628         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 629                 BN_num_bits(x->p)) <= 0)
 630                 goto err;
 631         if (!print(bp,"prime:",x->p,m,4)) goto err;
 632         if (!print(bp,"generator:",x->g,m,4)) goto err;
 633         if (x->length != 0)
 634                 {
 635                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 636                         (int)x->length) <= 0) goto err;
 637                 }
 638         ret=1;
 639         if (0)
 640                 {
 641 err:
 642                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 643                 }
 644         if (m != NULL) OPENSSL_free(m);
 645         return(ret);
 646         }
 647 #endif
 648
 649 #ifndef OPENSSL_NO_DSA
 650 #ifndef OPENSSL_NO_FP_API
 651 int DSAparams_print_fp(FILE *fp, const DSA *x)
 652         {
 653         BIO *b;
 654         int ret;
 655
 656         if ((b=BIO_new(BIO_s_file())) == NULL)
 657                 {
 658                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 659                 return(0);
 660                 }
 661         BIO_set_fp(b,fp,BIO_NOCLOSE);
 662         ret=DSAparams_print(b, x);
 663         BIO_free(b);
 664         return(ret);
 665         }
 666 #endif
 667
 668 int DSAparams_print(BIO *bp, const DSA *x)
 669         {
 670         unsigned char *m=NULL;
 671         int reason=ERR_R_BUF_LIB,ret=0;
 672         size_t buf_len=0,i;
 673
 674         if (x->p)
 675                 buf_len = (size_t)BN_num_bytes(x->p);
 676         if (x->q)
 677                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 678                         buf_len = i;
 679         if (x->g)
 680                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 681                         buf_len = i;
 682         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 683         if (m == NULL)
 684                 {
 685                 reason=ERR_R_MALLOC_FAILURE;
 686                 goto err;
 687                 }
 688
 689         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 690                 BN_num_bits(x->p)) <= 0)
 691                 goto err;
 692         if (!print(bp,"p:",x->p,m,4)) goto err;
 693         if (!print(bp,"q:",x->q,m,4)) goto err;
 694         if (!print(bp,"g:",x->g,m,4)) goto err;
 695         ret=1;
 696 err:
 697         if (m != NULL) OPENSSL_free(m);
 698         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 699         return(ret);
 700         }
 701
 702 #endif /* !OPENSSL_NO_DSA */
 703
 704 #ifndef OPENSSL_NO_EC
 705 #ifndef OPENSSL_NO_FP_API
 706 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
 707         {
 708         BIO *b;
 709         int ret;
 710
 711         if ((b=BIO_new(BIO_s_file())) == NULL)
 712                 {
 713                 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
 714                 return(0);
 715                 }
 716         BIO_set_fp(b, fp, BIO_NOCLOSE);
 717         ret = ECParameters_print(b, x);
 718         BIO_free(b);
 719         return(ret);
 720         }
 721 #endif
 722
 723 int ECParameters_print(BIO *bp, const EC_KEY *x)
 724         {
 725         int     reason=ERR_R_EC_LIB, ret=0;
 726         BIGNUM  *order=NULL;
 727
 728         if (!x || !x->group)
 729                 {
 730                 reason = ERR_R_PASSED_NULL_PARAMETER;;
 731                 goto err;
 732                 }
 733
 734         if ((order = BN_new()) == NULL)
 735                 {
 736                 reason = ERR_R_MALLOC_FAILURE;
 737                 goto err;
 738                 }
 739
 740         if (!EC_GROUP_get_order(x->group, order, NULL))
 741                 {
 742                 reason = ERR_R_EC_LIB;
 743                 goto err;
 744                 }
 745
 746         if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
 747                 BN_num_bits(order)) <= 0)
 748                 goto err;
 749         if (!ECPKParameters_print(bp, x->group, 4))
 750                 goto err;
 751         ret=1;
 752 err:
 753         if (order)
 754                 BN_free(order);
 755         ECerr(EC_F_ECPARAMETERS_PRINT, reason);
 756         return(ret);
 757         }
 758
 759 #endif