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, const BIGNUM *num,
  83                 unsigned char *buf,int off);
  84 #ifndef OPENSSL_NO_EC
  85 static int print_bin(BIO *fp, const char *str, const unsigned char *num,
  86                 size_t len, int off);
  87 #endif
  88 #ifndef OPENSSL_NO_RSA
  89 #ifndef OPENSSL_NO_FP_API
  90 int RSA_print_fp(FILE *fp, const RSA *x, int off)
  91         {
  92         BIO *b;
  93         int ret;
  94
  95         if ((b=BIO_new(BIO_s_file())) == NULL)
  96                 {
  97                 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
  98                 return(0);
  99                 }
 100         BIO_set_fp(b,fp,BIO_NOCLOSE);
 101         ret=RSA_print(b,x,off);
 102         BIO_free(b);
 103         return(ret);
 104         }
 105 #endif
 106
 107 int RSA_print(BIO *bp, const RSA *x, int off)
 108         {
 109         char str[128];
 110         const char *s;
 111         unsigned char *m=NULL;
 112         int ret=0;
 113         size_t buf_len=0, i;
 114
 115         if (x->n)
 116                 buf_len = (size_t)BN_num_bytes(x->n);
 117         if (x->e)
 118                 if (buf_len < (i = (size_t)BN_num_bytes(x->e)))
 119                         buf_len = i;
 120         if (x->d)
 121                 if (buf_len < (i = (size_t)BN_num_bytes(x->d)))
 122                         buf_len = i;
 123         if (x->p)
 124                 if (buf_len < (i = (size_t)BN_num_bytes(x->p)))
 125                         buf_len = i;
 126         if (x->q)
 127                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 128                         buf_len = i;
 129         if (x->dmp1)
 130                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmp1)))
 131                         buf_len = i;
 132         if (x->dmq1)
 133                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmq1)))
 134                         buf_len = i;
 135         if (x->iqmp)
 136                 if (buf_len < (i = (size_t)BN_num_bytes(x->iqmp)))
 137                         buf_len = i;
 138
 139         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 140         if (m == NULL)
 141                 {
 142                 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
 143                 goto err;
 144                 }
 145
 146         if (x->d != NULL)
 147                 {
 148                 if(!BIO_indent(bp,off,128))
 149                    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                 BIO_snprintf(str,sizeof str,"Modulus (%d bit):",BN_num_bits(x->n));
 156         else
 157                 BUF_strlcpy(str,"modulus:",sizeof str);
 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         unsigned char *m=NULL;
 196         int ret=0;
 197         size_t buf_len=0,i;
 198
 199         if (x->p)
 200                 buf_len = (size_t)BN_num_bytes(x->p);
 201         if (x->q)
 202                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 203                         buf_len = i;
 204         if (x->g)
 205                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 206                         buf_len = i;
 207         if (x->priv_key)
 208                 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
 209                         buf_len = i;
 210         if (x->pub_key)
 211                 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
 212                         buf_len = i;
 213
 214         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 215         if (m == NULL)
 216                 {
 217                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 218                 goto err;
 219                 }
 220
 221         if (x->priv_key != NULL)
 222                 {
 223                 if(!BIO_indent(bp,off,128))
 224                    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         unsigned char *buffer=NULL;
 281         size_t  buf_len=0, i;
 282         int     ret=0, reason=ERR_R_BIO_LIB;
 283         BN_CTX  *ctx=NULL;
 284         const EC_POINT *point=NULL;
 285         BIGNUM  *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
 286                 *order=NULL, *cofactor=NULL;
 287         const unsigned char *seed;
 288         size_t  seed_len=0;
 289
 290         static const char *gen_compressed = "Generator (compressed):";
 291         static const char *gen_uncompressed = "Generator (uncompressed):";
 292         static const char *gen_hybrid = "Generator (hybrid):";
 293
 294         if (!x)
 295                 {
 296                 reason = ERR_R_PASSED_NULL_PARAMETER;
 297                 goto err;
 298                 }
 299
 300         if (EC_GROUP_get_asn1_flag(x))
 301                 {
 302                 /* the curve parameter are given by an asn1 OID */
 303                 int nid;
 304
 305                 if (!BIO_indent(bp, off, 128))
 306                         goto err;
 307
 308                 nid = EC_GROUP_get_curve_name(x);
 309                 if (nid == 0)
 310                         goto err;
 311
 312                 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
 313                         goto err;
 314                 if (BIO_printf(bp, "\n") <= 0)
 315                         goto err;
 316                 }
 317         else
 318                 {
 319                 /* explicit parameters */
 320                 int is_char_two = 0;
 321                 point_conversion_form_t form;
 322                 int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
 323
 324                 if (tmp_nid == NID_X9_62_characteristic_two_field)
 325                         is_char_two = 1;
 326
 327                 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
 328                         (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
 329                         (cofactor = BN_new()) == NULL)
 330                         {
 331                         reason = ERR_R_MALLOC_FAILURE;
 332                         goto err;
 333                         }
 334
 335                 if (is_char_two)
 336                         {
 337                         if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx))
 338                                 {
 339                                 reason = ERR_R_EC_LIB;
 340                                 goto err;
 341                                 }
 342                         }
 343                 else /* prime field */
 344                         {
 345                         if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
 346                                 {
 347                                 reason = ERR_R_EC_LIB;
 348                                 goto err;
 349                                 }
 350                         }
 351
 352                 if ((point = EC_GROUP_get0_generator(x)) == NULL)
 353                         {
 354                         reason = ERR_R_EC_LIB;
 355                         goto err;
 356                         }
 357                 if (!EC_GROUP_get_order(x, order, NULL) ||
 358                         !EC_GROUP_get_cofactor(x, cofactor, NULL))
 359                         {
 360                         reason = ERR_R_EC_LIB;
 361                         goto err;
 362                         }
 363
 364                 form = EC_GROUP_get_point_conversion_form(x);
 365
 366                 if ((gen = EC_POINT_point2bn(x, point,
 367                                 form, NULL, ctx)) == NULL)
 368                         {
 369                         reason = ERR_R_EC_LIB;
 370                         goto err;
 371                         }
 372
 373                 buf_len = (size_t)BN_num_bytes(p);
 374                 if (buf_len < (i = (size_t)BN_num_bytes(a)))
 375                         buf_len = i;
 376                 if (buf_len < (i = (size_t)BN_num_bytes(b)))
 377                         buf_len = i;
 378                 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
 379                         buf_len = i;
 380                 if (buf_len < (i = (size_t)BN_num_bytes(order)))
 381                         buf_len = i;
 382                 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
 383                         buf_len = i;
 384
 385                 if ((seed = EC_GROUP_get0_seed(x)) != NULL)
 386                         seed_len = EC_GROUP_get_seed_len(x);
 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
 395                 if (!BIO_indent(bp, off, 128))
 396                         goto err;
 397
 398                 /* print the 'short name' of the field type */
 399                 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
 400                         <= 0)
 401                         goto err;
 402
 403                 if (is_char_two)
 404                         {
 405                         /* print the 'short name' of the base type OID */
 406                         int basis_type = EC_GROUP_get_basis_type(x);
 407                         if (basis_type == 0)
 408                                 goto err;
 409
 410                         if (!BIO_indent(bp, off, 128))
 411                                 goto err;
 412
 413                         if (BIO_printf(bp, "Basis Type: %s\n",
 414                                 OBJ_nid2sn(basis_type)) <= 0)
 415                                 goto err;
 416
 417                         /* print the polynomial */
 418                         if ((p != NULL) && !print(bp, "Polynomial:", p, buffer,
 419                                 off))
 420                                 goto err;
 421                         }
 422                 else
 423                         {
 424                         if ((p != NULL) && !print(bp, "Prime:", p, buffer,off))
 425                                 goto err;
 426                         }
 427                 if ((a != NULL) && !print(bp, "A:   ", a, buffer, off))
 428                         goto err;
 429                 if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
 430                         goto err;
 431                 if (form == POINT_CONVERSION_COMPRESSED)
 432                         {
 433                         if ((gen != NULL) && !print(bp, gen_compressed, gen,
 434                                 buffer, off))
 435                                 goto err;
 436                         }
 437                 else if (form == POINT_CONVERSION_UNCOMPRESSED)
 438                         {
 439                         if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
 440                                 buffer, off))
 441                                 goto err;
 442                         }
 443                 else /* form == POINT_CONVERSION_HYBRID */
 444                         {
 445                         if ((gen != NULL) && !print(bp, gen_hybrid, gen,
 446                                 buffer, off))
 447                                 goto err;
 448                         }
 449                 if ((order != NULL) && !print(bp, "Order: ", order,
 450                         buffer, off)) goto err;
 451                 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
 452                         buffer, off)) goto err;
 453                 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
 454                         goto err;
 455                 }
 456         ret=1;
 457 err:
 458         if (!ret)
 459                 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
 460         if (p)
 461                 BN_free(p);
 462         if (a)
 463                 BN_free(a);
 464         if (b)
 465                 BN_free(b);
 466         if (gen)
 467                 BN_free(gen);
 468         if (order)
 469                 BN_free(order);
 470         if (cofactor)
 471                 BN_free(cofactor);
 472         if (ctx)
 473                 BN_CTX_free(ctx);
 474         if (buffer != NULL)
 475                 OPENSSL_free(buffer);
 476         return(ret);
 477         }
 478
 479 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
 480         {
 481         unsigned char *buffer=NULL;
 482         size_t  buf_len=0, i;
 483         int     ret=0, reason=ERR_R_BIO_LIB;
 484         BIGNUM  *pub_key=NULL, *order=NULL;
 485         BN_CTX  *ctx=NULL;
 486         const EC_GROUP *group;
 487         const EC_POINT *public_key;
 488         const BIGNUM *priv_key;
 489
 490         if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
 491                 {
 492                 reason = ERR_R_PASSED_NULL_PARAMETER;
 493                 goto err;
 494                 }
 495
 496         public_key = EC_KEY_get0_public_key(x);
 497         if ((pub_key = EC_POINT_point2bn(group, public_key,
 498                 EC_KEY_get_conv_form(x), NULL, ctx)) == NULL)
 499                 {
 500                 reason = ERR_R_EC_LIB;
 501                 goto err;
 502                 }
 503
 504         buf_len = (size_t)BN_num_bytes(pub_key);
 505         priv_key = EC_KEY_get0_private_key(x);
 506         if (priv_key != NULL)
 507                 {
 508                 if ((i = (size_t)BN_num_bytes(priv_key)) > buf_len)
 509                         buf_len = i;
 510                 }
 511
 512         buf_len += 10;
 513         if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 514                 {
 515                 reason = ERR_R_MALLOC_FAILURE;
 516                 goto err;
 517                 }
 518
 519         if (priv_key != NULL)
 520                 {
 521                 if (!BIO_indent(bp, off, 128))
 522                         goto err;
 523                 if ((order = BN_new()) == NULL)
 524                         goto err;
 525                 if (!EC_GROUP_get_order(group, order, NULL))
 526                         goto err;
 527                 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
 528                         BN_num_bits(order)) <= 0) goto err;
 529                 }
 530
 531         if ((priv_key != NULL) && !print(bp, "priv:", priv_key,
 532                 buffer, off))
 533                 goto err;
 534         if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
 535                 buffer, off))
 536                 goto err;
 537         if (!ECPKParameters_print(bp, group, off))
 538                 goto err;
 539         ret=1;
 540 err:
 541         if (!ret)
 542                 ECerr(EC_F_EC_KEY_PRINT, reason);
 543         if (pub_key)
 544                 BN_free(pub_key);
 545         if (order)
 546                 BN_free(order);
 547         if (ctx)
 548                 BN_CTX_free(ctx);
 549         if (buffer != NULL)
 550                 OPENSSL_free(buffer);
 551         return(ret);
 552         }
 553 #endif /* OPENSSL_NO_EC */
 554
 555 static int print(BIO *bp, const char *number, const BIGNUM *num, unsigned char *buf,
 556              int off)
 557         {
 558         int n,i;
 559         const char *neg;
 560
 561         if (num == NULL) return(1);
 562         neg = (BN_is_negative(num))?"-":"";
 563         if(!BIO_indent(bp,off,128))
 564                 return 0;
 565         if (BN_is_zero(num))
 566                 {
 567                 if (BIO_printf(bp, "%s 0\n", number) <= 0)
 568                         return 0;
 569                 return 1;
 570                 }
 571
 572         if (BN_num_bytes(num) <= BN_BYTES)
 573                 {
 574                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 575                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 576                         <= 0) return(0);
 577                 }
 578         else
 579                 {
 580                 buf[0]=0;
 581                 if (BIO_printf(bp,"%s%s",number,
 582                         (neg[0] == '-')?" (Negative)":"") <= 0)
 583                         return(0);
 584                 n=BN_bn2bin(num,&buf[1]);
 585
 586                 if (buf[1] & 0x80)
 587                         n++;
 588                 else    buf++;
 589
 590                 for (i=0; i<n; i++)
 591                         {
 592                         if ((i%15) == 0)
 593                                 {
 594                                 if(BIO_puts(bp,"\n") <= 0
 595                                    || !BIO_indent(bp,off+4,128))
 596                                     return 0;
 597                                 }
 598                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 599                                 <= 0) return(0);
 600                         }
 601                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 602                 }
 603         return(1);
 604         }
 605
 606 #ifndef OPENSSL_NO_EC
 607 static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
 608                 size_t len, int off)
 609         {
 610         size_t i;
 611         char str[128];
 612
 613         if (buf == NULL)
 614                 return 1;
 615         if (off)
 616                 {
 617                 if (off > 128)
 618                         off=128;
 619                 memset(str,' ',off);
 620                 if (BIO_write(fp, str, off) <= 0)
 621                         return 0;
 622                 }
 623
 624         if (BIO_printf(fp,"%s", name) <= 0)
 625                 return 0;
 626
 627         for (i=0; i<len; i++)
 628                 {
 629                 if ((i%15) == 0)
 630                         {
 631                         str[0]='\n';
 632                         memset(&(str[1]),' ',off+4);
 633                         if (BIO_write(fp, str, off+1+4) <= 0)
 634                                 return 0;
 635                         }
 636                 if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0)
 637                         return 0;
 638                 }
 639         if (BIO_write(fp,"\n",1) <= 0)
 640                 return 0;
 641
 642         return 1;
 643         }
 644 #endif
 645
 646 #ifndef OPENSSL_NO_DH
 647 #ifndef OPENSSL_NO_FP_API
 648 int DHparams_print_fp(FILE *fp, const DH *x)
 649         {
 650         BIO *b;
 651         int ret;
 652
 653         if ((b=BIO_new(BIO_s_file())) == NULL)
 654                 {
 655                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 656                 return(0);
 657                 }
 658         BIO_set_fp(b,fp,BIO_NOCLOSE);
 659         ret=DHparams_print(b, x);
 660         BIO_free(b);
 661         return(ret);
 662         }
 663 #endif
 664
 665 int DHparams_print(BIO *bp, const DH *x)
 666         {
 667         unsigned char *m=NULL;
 668         int reason=ERR_R_BUF_LIB,ret=0;
 669         size_t buf_len=0, i;
 670
 671         if (x->p)
 672                 buf_len = (size_t)BN_num_bytes(x->p);
 673         if (x->g)
 674                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 675                         buf_len = i;
 676         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 677         if (m == NULL)
 678                 {
 679                 reason=ERR_R_MALLOC_FAILURE;
 680                 goto err;
 681                 }
 682
 683         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 684                 BN_num_bits(x->p)) <= 0)
 685                 goto err;
 686         if (!print(bp,"prime:",x->p,m,4)) goto err;
 687         if (!print(bp,"generator:",x->g,m,4)) goto err;
 688         if (x->length != 0)
 689                 {
 690                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 691                         (int)x->length) <= 0) goto err;
 692                 }
 693         ret=1;
 694         if (0)
 695                 {
 696 err:
 697                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 698                 }
 699         if (m != NULL) OPENSSL_free(m);
 700         return(ret);
 701         }
 702 #endif
 703
 704 #ifndef OPENSSL_NO_DSA
 705 #ifndef OPENSSL_NO_FP_API
 706 int DSAparams_print_fp(FILE *fp, const DSA *x)
 707         {
 708         BIO *b;
 709         int ret;
 710
 711         if ((b=BIO_new(BIO_s_file())) == NULL)
 712                 {
 713                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 714                 return(0);
 715                 }
 716         BIO_set_fp(b,fp,BIO_NOCLOSE);
 717         ret=DSAparams_print(b, x);
 718         BIO_free(b);
 719         return(ret);
 720         }
 721 #endif
 722
 723 int DSAparams_print(BIO *bp, const DSA *x)
 724         {
 725         unsigned char *m=NULL;
 726         int reason=ERR_R_BUF_LIB,ret=0;
 727         size_t buf_len=0,i;
 728
 729         if (x->p)
 730                 buf_len = (size_t)BN_num_bytes(x->p);
 731         if (x->q)
 732                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 733                         buf_len = i;
 734         if (x->g)
 735                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 736                         buf_len = i;
 737         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 738         if (m == NULL)
 739                 {
 740                 reason=ERR_R_MALLOC_FAILURE;
 741                 goto err;
 742                 }
 743
 744         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 745                 BN_num_bits(x->p)) <= 0)
 746                 goto err;
 747         if (!print(bp,"p:",x->p,m,4)) goto err;
 748         if (!print(bp,"q:",x->q,m,4)) goto err;
 749         if (!print(bp,"g:",x->g,m,4)) goto err;
 750         ret=1;
 751 err:
 752         if (m != NULL) OPENSSL_free(m);
 753         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 754         return(ret);
 755         }
 756
 757 #endif /* !OPENSSL_NO_DSA */
 758
 759 #ifndef OPENSSL_NO_EC
 760 #ifndef OPENSSL_NO_FP_API
 761 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
 762         {
 763         BIO *b;
 764         int ret;
 765
 766         if ((b=BIO_new(BIO_s_file())) == NULL)
 767                 {
 768                 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
 769                 return(0);
 770                 }
 771         BIO_set_fp(b, fp, BIO_NOCLOSE);
 772         ret = ECParameters_print(b, x);
 773         BIO_free(b);
 774         return(ret);
 775         }
 776 #endif
 777
 778 int ECParameters_print(BIO *bp, const EC_KEY *x)
 779         {
 780         int     reason=ERR_R_EC_LIB, ret=0;
 781         BIGNUM  *order=NULL;
 782         const EC_GROUP *group;
 783
 784         if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
 785                 {
 786                 reason = ERR_R_PASSED_NULL_PARAMETER;;
 787                 goto err;
 788                 }
 789
 790         if ((order = BN_new()) == NULL)
 791                 {
 792                 reason = ERR_R_MALLOC_FAILURE;
 793                 goto err;
 794                 }
 795
 796         if (!EC_GROUP_get_order(group, order, NULL))
 797                 {
 798                 reason = ERR_R_EC_LIB;
 799                 goto err;
 800                 }
 801
 802         if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
 803                 BN_num_bits(order)) <= 0)
 804                 goto err;
 805         if (!ECPKParameters_print(bp, group, 4))
 806                 goto err;
 807         ret=1;
 808 err:
 809         if (order)
 810                 BN_free(order);
 811         ECerr(EC_F_ECPARAMETERS_PRINT, reason);
 812         return(ret);
 813         }
 814
 815 #endif