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 static int print_bin(BIO *fp, const char *str, const unsigned char *num,
  85                 size_t len, int off);
  86 #ifndef OPENSSL_NO_RSA
  87 #ifndef OPENSSL_NO_FP_API
  88 int RSA_print_fp(FILE *fp, const RSA *x, int off)
  89         {
  90         BIO *b;
  91         int ret;
  92
  93         if ((b=BIO_new(BIO_s_file())) == NULL)
  94                 {
  95                 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
  96                 return(0);
  97                 }
  98         BIO_set_fp(b,fp,BIO_NOCLOSE);
  99         ret=RSA_print(b,x,off);
 100         BIO_free(b);
 101         return(ret);
 102         }
 103 #endif
 104
 105 int RSA_print(BIO *bp, const RSA *x, int off)
 106         {
 107         char str[128];
 108         const char *s;
 109         unsigned char *m=NULL;
 110         int ret=0;
 111         size_t buf_len=0, i;
 112
 113         if (x->n)
 114                 buf_len = (size_t)BN_num_bytes(x->n);
 115         if (x->e)
 116                 if (buf_len < (i = (size_t)BN_num_bytes(x->e)))
 117                         buf_len = i;
 118         if (x->d)
 119                 if (buf_len < (i = (size_t)BN_num_bytes(x->d)))
 120                         buf_len = i;
 121         if (x->p)
 122                 if (buf_len < (i = (size_t)BN_num_bytes(x->p)))
 123                         buf_len = i;
 124         if (x->q)
 125                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 126                         buf_len = i;
 127         if (x->dmp1)
 128                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmp1)))
 129                         buf_len = i;
 130         if (x->dmq1)
 131                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmq1)))
 132                         buf_len = i;
 133         if (x->iqmp)
 134                 if (buf_len < (i = (size_t)BN_num_bytes(x->iqmp)))
 135                         buf_len = i;
 136
 137         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 138         if (m == NULL)
 139                 {
 140                 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
 141                 goto err;
 142                 }
 143
 144         if (off)
 145                 {
 146                 if (off > 128) off=128;
 147                 memset(str,' ',off);
 148                 }
 149         if (x->d != NULL)
 150                 {
 151                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 152                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
 153                         <= 0) goto err;
 154                 }
 155
 156         if (x->d == NULL)
 157                 sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
 158         else
 159                 strcpy(str,"modulus:");
 160         if (!print(bp,str,x->n,m,off)) goto err;
 161         s=(x->d == NULL)?"Exponent:":"publicExponent:";
 162         if (!print(bp,s,x->e,m,off)) goto err;
 163         if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
 164         if (!print(bp,"prime1:",x->p,m,off)) goto err;
 165         if (!print(bp,"prime2:",x->q,m,off)) goto err;
 166         if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
 167         if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
 168         if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
 169         ret=1;
 170 err:
 171         if (m != NULL) OPENSSL_free(m);
 172         return(ret);
 173         }
 174 #endif /* OPENSSL_NO_RSA */
 175
 176 #ifndef OPENSSL_NO_DSA
 177 #ifndef OPENSSL_NO_FP_API
 178 int DSA_print_fp(FILE *fp, const DSA *x, int off)
 179         {
 180         BIO *b;
 181         int ret;
 182
 183         if ((b=BIO_new(BIO_s_file())) == NULL)
 184                 {
 185                 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
 186                 return(0);
 187                 }
 188         BIO_set_fp(b,fp,BIO_NOCLOSE);
 189         ret=DSA_print(b,x,off);
 190         BIO_free(b);
 191         return(ret);
 192         }
 193 #endif
 194
 195 int DSA_print(BIO *bp, const DSA *x, int off)
 196         {
 197         char str[128];
 198         unsigned char *m=NULL;
 199         int ret=0;
 200         size_t buf_len=0,i;
 201
 202         if (x->p)
 203                 buf_len = (size_t)BN_num_bytes(x->p);
 204         if (x->q)
 205                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 206                         buf_len = i;
 207         if (x->g)
 208                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 209                         buf_len = i;
 210         if (x->priv_key)
 211                 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
 212                         buf_len = i;
 213         if (x->pub_key)
 214                 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
 215                         buf_len = i;
 216
 217         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 218         if (m == NULL)
 219                 {
 220                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 221                 goto err;
 222                 }
 223
 224         if (off)
 225                 {
 226                 if (off > 128) off=128;
 227                 memset(str,' ',off);
 228                 }
 229         if (x->priv_key != NULL)
 230                 {
 231                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 232                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 233                         <= 0) goto err;
 234                 }
 235
 236         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 237                 goto err;
 238         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 239                 goto err;
 240         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 241         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 242         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 243         ret=1;
 244 err:
 245         if (m != NULL) OPENSSL_free(m);
 246         return(ret);
 247         }
 248 #endif /* !OPENSSL_NO_DSA */
 249
 250 #ifndef OPENSSL_NO_EC
 251 #ifndef OPENSSL_NO_FP_API
 252 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
 253         {
 254         BIO *b;
 255         int ret;
 256
 257         if ((b=BIO_new(BIO_s_file())) == NULL)
 258                 {
 259                 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB);
 260                 return(0);
 261                 }
 262         BIO_set_fp(b, fp, BIO_NOCLOSE);
 263         ret = ECPKParameters_print(b, x, off);
 264         BIO_free(b);
 265         return(ret);
 266         }
 267
 268 int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
 269         {
 270         BIO *b;
 271         int ret;
 272
 273         if ((b=BIO_new(BIO_s_file())) == NULL)
 274                 {
 275                 ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
 276                 return(0);
 277                 }
 278         BIO_set_fp(b, fp, BIO_NOCLOSE);
 279         ret = EC_KEY_print(b, x, off);
 280         BIO_free(b);
 281         return(ret);
 282         }
 283 #endif
 284
 285 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
 286         {
 287         char str[128];
 288         unsigned char *buffer=NULL;
 289         size_t  buf_len=0, i;
 290         int     ret=0, reason=ERR_R_BIO_LIB;
 291         BN_CTX  *ctx=NULL;
 292         EC_POINT *point=NULL;
 293         BIGNUM  *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
 294                 *order=NULL, *cofactor=NULL;
 295         const unsigned char *seed;
 296         size_t  seed_len=0;
 297
 298         static const char *gen_compressed = "Generator (compressed):";
 299         static const char *gen_uncompressed = "Generator (uncompressed):";
 300         static const char *gen_hybrid = "Generator (hybrid):";
 301
 302         if (!x)
 303                 {
 304                 reason = ERR_R_PASSED_NULL_PARAMETER;
 305                 goto err;
 306                 }
 307
 308         if (EC_GROUP_get_asn1_flag(x))
 309                 {
 310                 /* the curve parameter are given by an asn1 OID */
 311                 int nid;
 312
 313                 if (off)
 314                         {
 315                         if (off > 128)
 316                                 off=128;
 317                         memset(str, ' ', off);
 318                         if (BIO_write(bp, str, off) <= 0)
 319                                 goto err;
 320                         }
 321
 322                 nid = EC_GROUP_get_nid(x);
 323                 if (nid == 0)
 324                         goto err;
 325
 326                 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
 327                         goto err;
 328                 if (BIO_printf(bp, "\n") <= 0)
 329                         goto err;
 330                 }
 331         else
 332                 {
 333                 /* explicit parameters */
 334                 int is_char_two = 0;
 335                 point_conversion_form_t form;
 336                 int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
 337
 338                 if (tmp_nid == NID_X9_62_characteristic_two_field)
 339                         is_char_two = 1;
 340
 341                 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
 342                         (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
 343                         (cofactor = BN_new()) == NULL)
 344                         {
 345                         reason = ERR_R_MALLOC_FAILURE;
 346                         goto err;
 347                         }
 348
 349                 if (is_char_two)
 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                 else /* prime field */
 358                         {
 359                         if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
 360                                 {
 361                                 reason = ERR_R_EC_LIB;
 362                                 goto err;
 363                                 }
 364                         }
 365
 366                 if ((point = EC_GROUP_get0_generator(x)) == NULL)
 367                         {
 368                         reason = ERR_R_EC_LIB;
 369                         goto err;
 370                         }
 371                 if (!EC_GROUP_get_order(x, order, NULL) ||
 372                         !EC_GROUP_get_cofactor(x, cofactor, NULL))
 373                         {
 374                         reason = ERR_R_EC_LIB;
 375                         goto err;
 376                         }
 377
 378                 form = EC_GROUP_get_point_conversion_form(x);
 379
 380                 if ((gen = EC_POINT_point2bn(x, point,
 381                                 form, NULL, ctx)) == NULL)
 382                         {
 383                         reason = ERR_R_EC_LIB;
 384                         goto err;
 385                         }
 386
 387                 buf_len = (size_t)BN_num_bytes(p);
 388                 if (buf_len < (i = (size_t)BN_num_bytes(a)))
 389                         buf_len = i;
 390                 if (buf_len < (i = (size_t)BN_num_bytes(b)))
 391                         buf_len = i;
 392                 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
 393                         buf_len = i;
 394                 if (buf_len < (i = (size_t)BN_num_bytes(order)))
 395                         buf_len = i;
 396                 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
 397                         buf_len = i;
 398
 399                 if ((seed = EC_GROUP_get0_seed(x)) != NULL)
 400                         seed_len = EC_GROUP_get_seed_len(x);
 401
 402                 buf_len += 10;
 403                 if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 404                         {
 405                         reason = ERR_R_MALLOC_FAILURE;
 406                         goto err;
 407                         }
 408                 if (off)
 409                         {
 410                         if (off > 128) off=128;
 411                         memset(str,' ',off);
 412                         if (BIO_write(bp, str, off) <= 0)
 413                                 goto err;
 414                         }
 415
 416                 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
 417                         <= 0)
 418                         goto err;
 419
 420                 if (is_char_two)
 421                         {
 422                         if ((p != NULL) && !print(bp, "Polynomial:", p, buffer,
 423                                 off))
 424                                 goto err;
 425                         }
 426                 else
 427                         {
 428                         if ((p != NULL) && !print(bp, "Prime:", p, buffer,off))
 429                                 goto err;
 430                         }
 431                 if ((a != NULL) && !print(bp, "A:   ", a, buffer, off))
 432                         goto err;
 433                 if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
 434                         goto err;
 435                 if (form == POINT_CONVERSION_COMPRESSED)
 436                         {
 437                         if ((gen != NULL) && !print(bp, gen_compressed, gen,
 438                                 buffer, off))
 439                                 goto err;
 440                         }
 441                 else if (form == POINT_CONVERSION_UNCOMPRESSED)
 442                         {
 443                         if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
 444                                 buffer, off))
 445                                 goto err;
 446                         }
 447                 else /* form == POINT_CONVERSION_HYBRID */
 448                         {
 449                         if ((gen != NULL) && !print(bp, gen_hybrid, gen,
 450                                 buffer, off))
 451                                 goto err;
 452                         }
 453                 if ((order != NULL) && !print(bp, "Order: ", order,
 454                         buffer, off)) goto err;
 455                 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
 456                         buffer, off)) goto err;
 457                 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
 458                         goto err;
 459                 }
 460         ret=1;
 461 err:
 462         if (!ret)
 463                 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
 464         if (p)
 465                 BN_free(p);
 466         if (a)
 467                 BN_free(a);
 468         if (b)
 469                 BN_free(b);
 470         if (gen)
 471                 BN_free(gen);
 472         if (order)
 473                 BN_free(order);
 474         if (cofactor)
 475                 BN_free(cofactor);
 476         if (ctx)
 477                 BN_CTX_free(ctx);
 478         if (buffer != NULL)
 479                 OPENSSL_free(buffer);
 480         return(ret);
 481         }
 482
 483 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
 484         {
 485         char str[128];
 486         unsigned char *buffer=NULL;
 487         size_t  buf_len=0, i;
 488         int     ret=0, reason=ERR_R_BIO_LIB;
 489         BIGNUM  *pub_key=NULL;
 490         BN_CTX  *ctx=NULL;
 491
 492         if (!x || !x->group)
 493                 {
 494                 reason = ERR_R_PASSED_NULL_PARAMETER;
 495                 goto err;
 496                 }
 497
 498         if ((pub_key = EC_POINT_point2bn(x->group, x->pub_key,
 499                 x->conv_form, NULL, ctx)) == NULL)
 500                 {
 501                 reason = ERR_R_EC_LIB;
 502                 goto err;
 503                 }
 504
 505         buf_len = (size_t)BN_num_bytes(pub_key);
 506         if (x->priv_key)
 507                 {
 508                 if ((i = (size_t)BN_num_bytes(x->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         if (off)
 519                 {
 520                 if (off > 128) off=128;
 521                 memset(str,' ',off);
 522                 }
 523         if (x->priv_key != NULL)
 524                 {
 525                 if (off && (BIO_write(bp, str, off) <= 0)) goto err;
 526                 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
 527                         BN_num_bits(x->priv_key)) <= 0) goto err;
 528                 }
 529
 530         if ((x->priv_key != NULL) && !print(bp, "priv:", x->priv_key,
 531                 buffer, off))
 532                 goto err;
 533         if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
 534                 buffer, off))
 535                 goto err;
 536         if (!ECPKParameters_print(bp, x->group, off))
 537                 goto err;
 538         ret=1;
 539 err:
 540         if (!ret)
 541                 ECerr(EC_F_EC_KEY_PRINT, reason);
 542         if (pub_key)
 543                 BN_free(pub_key);
 544         if (ctx)
 545                 BN_CTX_free(ctx);
 546         if (buffer != NULL)
 547                 OPENSSL_free(buffer);
 548         return(ret);
 549         }
 550 #endif /* OPENSSL_NO_EC */
 551
 552 static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
 553              int off)
 554         {
 555         int n,i;
 556         char str[128];
 557         const char *neg;
 558
 559         if (num == NULL) return(1);
 560         neg=(num->neg)?"-":"";
 561         if (off)
 562                 {
 563                 if (off > 128) off=128;
 564                 memset(str,' ',off);
 565                 if (BIO_write(bp,str,off) <= 0) return(0);
 566                 }
 567
 568         if (BN_num_bytes(num) <= BN_BYTES)
 569                 {
 570                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 571                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 572                         <= 0) return(0);
 573                 }
 574         else
 575                 {
 576                 buf[0]=0;
 577                 if (BIO_printf(bp,"%s%s",number,
 578                         (neg[0] == '-')?" (Negative)":"") <= 0)
 579                         return(0);
 580                 n=BN_bn2bin(num,&buf[1]);
 581
 582                 if (buf[1] & 0x80)
 583                         n++;
 584                 else    buf++;
 585
 586                 for (i=0; i<n; i++)
 587                         {
 588                         if ((i%15) == 0)
 589                                 {
 590                                 str[0]='\n';
 591                                 memset(&(str[1]),' ',off+4);
 592                                 if (BIO_write(bp,str,off+1+4) <= 0) return(0);
 593                                 }
 594                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 595                                 <= 0) return(0);
 596                         }
 597                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 598                 }
 599         return(1);
 600         }
 601
 602 static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
 603                 size_t len, int off)
 604         {
 605         int i;
 606         char str[128];
 607
 608         if (buf == NULL)
 609                 return 1;
 610         if (off)
 611                 {
 612                 if (off > 128)
 613                         off=128;
 614                 memset(str,' ',off);
 615                 if (BIO_write(fp, str, off) <= 0)
 616                         return 0;
 617                 }
 618
 619         if (BIO_printf(fp,"%s", name) <= 0)
 620                 return 0;
 621
 622         for (i=0; i<len; i++)
 623                 {
 624                 if ((i%15) == 0)
 625                         {
 626                         str[0]='\n';
 627                         memset(&(str[1]),' ',off+4);
 628                         if (BIO_write(fp, str, off+1+4) <= 0)
 629                                 return 0;
 630                         }
 631                 if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0)
 632                         return 0;
 633                 }
 634         if (BIO_write(fp,"\n",1) <= 0)
 635                 return 0;
 636
 637         return 1;
 638         }
 639
 640 #ifndef OPENSSL_NO_DH
 641 #ifndef OPENSSL_NO_FP_API
 642 int DHparams_print_fp(FILE *fp, const DH *x)
 643         {
 644         BIO *b;
 645         int ret;
 646
 647         if ((b=BIO_new(BIO_s_file())) == NULL)
 648                 {
 649                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 650                 return(0);
 651                 }
 652         BIO_set_fp(b,fp,BIO_NOCLOSE);
 653         ret=DHparams_print(b, x);
 654         BIO_free(b);
 655         return(ret);
 656         }
 657 #endif
 658
 659 int DHparams_print(BIO *bp, const DH *x)
 660         {
 661         unsigned char *m=NULL;
 662         int reason=ERR_R_BUF_LIB,ret=0;
 663         size_t buf_len=0, i;
 664
 665         if (x->p)
 666                 buf_len = (size_t)BN_num_bytes(x->p);
 667         if (x->g)
 668                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 669                         buf_len = i;
 670         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 671         if (m == NULL)
 672                 {
 673                 reason=ERR_R_MALLOC_FAILURE;
 674                 goto err;
 675                 }
 676
 677         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 678                 BN_num_bits(x->p)) <= 0)
 679                 goto err;
 680         if (!print(bp,"prime:",x->p,m,4)) goto err;
 681         if (!print(bp,"generator:",x->g,m,4)) goto err;
 682         if (x->length != 0)
 683                 {
 684                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 685                         (int)x->length) <= 0) goto err;
 686                 }
 687         ret=1;
 688         if (0)
 689                 {
 690 err:
 691                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 692                 }
 693         if (m != NULL) OPENSSL_free(m);
 694         return(ret);
 695         }
 696 #endif
 697
 698 #ifndef OPENSSL_NO_DSA
 699 #ifndef OPENSSL_NO_FP_API
 700 int DSAparams_print_fp(FILE *fp, const DSA *x)
 701         {
 702         BIO *b;
 703         int ret;
 704
 705         if ((b=BIO_new(BIO_s_file())) == NULL)
 706                 {
 707                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 708                 return(0);
 709                 }
 710         BIO_set_fp(b,fp,BIO_NOCLOSE);
 711         ret=DSAparams_print(b, x);
 712         BIO_free(b);
 713         return(ret);
 714         }
 715 #endif
 716
 717 int DSAparams_print(BIO *bp, const DSA *x)
 718         {
 719         unsigned char *m=NULL;
 720         int reason=ERR_R_BUF_LIB,ret=0;
 721         size_t buf_len=0,i;
 722
 723         if (x->p)
 724                 buf_len = (size_t)BN_num_bytes(x->p);
 725         if (x->q)
 726                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 727                         buf_len = i;
 728         if (x->g)
 729                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 730                         buf_len = i;
 731         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 732         if (m == NULL)
 733                 {
 734                 reason=ERR_R_MALLOC_FAILURE;
 735                 goto err;
 736                 }
 737
 738         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 739                 BN_num_bits(x->p)) <= 0)
 740                 goto err;
 741         if (!print(bp,"p:",x->p,m,4)) goto err;
 742         if (!print(bp,"q:",x->q,m,4)) goto err;
 743         if (!print(bp,"g:",x->g,m,4)) goto err;
 744         ret=1;
 745 err:
 746         if (m != NULL) OPENSSL_free(m);
 747         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 748         return(ret);
 749         }
 750
 751 #endif /* !OPENSSL_NO_DSA */
 752
 753 #ifndef OPENSSL_NO_EC
 754 #ifndef OPENSSL_NO_FP_API
 755 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
 756         {
 757         BIO *b;
 758         int ret;
 759
 760         if ((b=BIO_new(BIO_s_file())) == NULL)
 761                 {
 762                 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
 763                 return(0);
 764                 }
 765         BIO_set_fp(b, fp, BIO_NOCLOSE);
 766         ret = ECParameters_print(b, x);
 767         BIO_free(b);
 768         return(ret);
 769         }
 770 #endif
 771
 772 int ECParameters_print(BIO *bp, const EC_KEY *x)
 773         {
 774         int     reason=ERR_R_EC_LIB, ret=0;
 775         BIGNUM  *order=NULL;
 776
 777         if (!x || !x->group)
 778                 {
 779                 reason = ERR_R_PASSED_NULL_PARAMETER;;
 780                 goto err;
 781                 }
 782
 783         if ((order = BN_new()) == NULL)
 784                 {
 785                 reason = ERR_R_MALLOC_FAILURE;
 786                 goto err;
 787                 }
 788
 789         if (!EC_GROUP_get_order(x->group, order, NULL))
 790                 {
 791                 reason = ERR_R_EC_LIB;
 792                 goto err;
 793                 }
 794
 795         if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
 796                 BN_num_bits(order)) <= 0)
 797                 goto err;
 798         if (!ECPKParameters_print(bp, x->group, 4))
 799                 goto err;
 800         ret=1;
 801 err:
 802         if (order)
 803                 BN_free(order);
 804         ECerr(EC_F_ECPARAMETERS_PRINT, reason);
 805         return(ret);
 806         }
 807
 808 #endif