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         else
 202                 {
 203                 DSAerr(DSA_F_DSA_PRINT,DSA_R_MISSING_PARAMETERS);
 204                 goto err;
 205                 }
 206         if (x->q)
 207                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 208                         buf_len = i;
 209         if (x->g)
 210                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 211                         buf_len = i;
 212         if (x->priv_key)
 213                 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
 214                         buf_len = i;
 215         if (x->pub_key)
 216                 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
 217                         buf_len = i;
 218
 219         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 220         if (m == NULL)
 221                 {
 222                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 223                 goto err;
 224                 }
 225
 226         if (x->priv_key != NULL)
 227                 {
 228                 if(!BIO_indent(bp,off,128))
 229                    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         unsigned char *buffer=NULL;
 286         size_t  buf_len=0, i;
 287         int     ret=0, reason=ERR_R_BIO_LIB;
 288         BN_CTX  *ctx=NULL;
 289         const EC_POINT *point=NULL;
 290         BIGNUM  *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
 291                 *order=NULL, *cofactor=NULL;
 292         const unsigned char *seed;
 293         size_t  seed_len=0;
 294
 295         static const char *gen_compressed = "Generator (compressed):";
 296         static const char *gen_uncompressed = "Generator (uncompressed):";
 297         static const char *gen_hybrid = "Generator (hybrid):";
 298
 299         if (!x)
 300                 {
 301                 reason = ERR_R_PASSED_NULL_PARAMETER;
 302                 goto err;
 303                 }
 304
 305         if (EC_GROUP_get_asn1_flag(x))
 306                 {
 307                 /* the curve parameter are given by an asn1 OID */
 308                 int nid;
 309
 310                 if (!BIO_indent(bp, off, 128))
 311                         goto err;
 312
 313                 nid = EC_GROUP_get_curve_name(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                 int is_char_two = 0;
 326                 point_conversion_form_t form;
 327                 int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
 328
 329                 if (tmp_nid == NID_X9_62_characteristic_two_field)
 330                         is_char_two = 1;
 331
 332                 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
 333                         (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
 334                         (cofactor = BN_new()) == NULL)
 335                         {
 336                         reason = ERR_R_MALLOC_FAILURE;
 337                         goto err;
 338                         }
 339
 340                 if (is_char_two)
 341                         {
 342                         if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx))
 343                                 {
 344                                 reason = ERR_R_EC_LIB;
 345                                 goto err;
 346                                 }
 347                         }
 348                 else /* prime field */
 349                         {
 350                         if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
 351                                 {
 352                                 reason = ERR_R_EC_LIB;
 353                                 goto err;
 354                                 }
 355                         }
 356
 357                 if ((point = EC_GROUP_get0_generator(x)) == NULL)
 358                         {
 359                         reason = ERR_R_EC_LIB;
 360                         goto err;
 361                         }
 362                 if (!EC_GROUP_get_order(x, order, NULL) ||
 363                         !EC_GROUP_get_cofactor(x, cofactor, NULL))
 364                         {
 365                         reason = ERR_R_EC_LIB;
 366                         goto err;
 367                         }
 368
 369                 form = EC_GROUP_get_point_conversion_form(x);
 370
 371                 if ((gen = EC_POINT_point2bn(x, point,
 372                                 form, NULL, ctx)) == NULL)
 373                         {
 374                         reason = ERR_R_EC_LIB;
 375                         goto err;
 376                         }
 377
 378                 buf_len = (size_t)BN_num_bytes(p);
 379                 if (buf_len < (i = (size_t)BN_num_bytes(a)))
 380                         buf_len = i;
 381                 if (buf_len < (i = (size_t)BN_num_bytes(b)))
 382                         buf_len = i;
 383                 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
 384                         buf_len = i;
 385                 if (buf_len < (i = (size_t)BN_num_bytes(order)))
 386                         buf_len = i;
 387                 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
 388                         buf_len = i;
 389
 390                 if ((seed = EC_GROUP_get0_seed(x)) != NULL)
 391                         seed_len = EC_GROUP_get_seed_len(x);
 392
 393                 buf_len += 10;
 394                 if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 395                         {
 396                         reason = ERR_R_MALLOC_FAILURE;
 397                         goto err;
 398                         }
 399
 400                 if (!BIO_indent(bp, off, 128))
 401                         goto err;
 402
 403                 /* print the 'short name' of the field type */
 404                 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
 405                         <= 0)
 406                         goto err;
 407
 408                 if (is_char_two)
 409                         {
 410                         /* print the 'short name' of the base type OID */
 411                         int basis_type = EC_GROUP_get_basis_type(x);
 412                         if (basis_type == 0)
 413                                 goto err;
 414
 415                         if (!BIO_indent(bp, off, 128))
 416                                 goto err;
 417
 418                         if (BIO_printf(bp, "Basis Type: %s\n",
 419                                 OBJ_nid2sn(basis_type)) <= 0)
 420                                 goto err;
 421
 422                         /* print the polynomial */
 423                         if ((p != NULL) && !print(bp, "Polynomial:", p, buffer,
 424                                 off))
 425                                 goto err;
 426                         }
 427                 else
 428                         {
 429                         if ((p != NULL) && !print(bp, "Prime:", p, buffer,off))
 430                                 goto err;
 431                         }
 432                 if ((a != NULL) && !print(bp, "A:   ", a, buffer, off))
 433                         goto err;
 434                 if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
 435                         goto err;
 436                 if (form == POINT_CONVERSION_COMPRESSED)
 437                         {
 438                         if ((gen != NULL) && !print(bp, gen_compressed, gen,
 439                                 buffer, off))
 440                                 goto err;
 441                         }
 442                 else if (form == POINT_CONVERSION_UNCOMPRESSED)
 443                         {
 444                         if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
 445                                 buffer, off))
 446                                 goto err;
 447                         }
 448                 else /* form == POINT_CONVERSION_HYBRID */
 449                         {
 450                         if ((gen != NULL) && !print(bp, gen_hybrid, gen,
 451                                 buffer, off))
 452                                 goto err;
 453                         }
 454                 if ((order != NULL) && !print(bp, "Order: ", order,
 455                         buffer, off)) goto err;
 456                 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
 457                         buffer, off)) goto err;
 458                 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
 459                         goto err;
 460                 }
 461         ret=1;
 462 err:
 463         if (!ret)
 464                 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
 465         if (p)
 466                 BN_free(p);
 467         if (a)
 468                 BN_free(a);
 469         if (b)
 470                 BN_free(b);
 471         if (gen)
 472                 BN_free(gen);
 473         if (order)
 474                 BN_free(order);
 475         if (cofactor)
 476                 BN_free(cofactor);
 477         if (ctx)
 478                 BN_CTX_free(ctx);
 479         if (buffer != NULL)
 480                 OPENSSL_free(buffer);
 481         return(ret);
 482         }
 483
 484 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
 485         {
 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, *order=NULL;
 490         BN_CTX  *ctx=NULL;
 491         const EC_GROUP *group;
 492         const EC_POINT *public_key;
 493         const BIGNUM *priv_key;
 494
 495         if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
 496                 {
 497                 reason = ERR_R_PASSED_NULL_PARAMETER;
 498                 goto err;
 499                 }
 500
 501         public_key = EC_KEY_get0_public_key(x);
 502         if ((pub_key = EC_POINT_point2bn(group, public_key,
 503                 EC_KEY_get_conv_form(x), NULL, ctx)) == NULL)
 504                 {
 505                 reason = ERR_R_EC_LIB;
 506                 goto err;
 507                 }
 508
 509         buf_len = (size_t)BN_num_bytes(pub_key);
 510         priv_key = EC_KEY_get0_private_key(x);
 511         if (priv_key != NULL)
 512                 {
 513                 if ((i = (size_t)BN_num_bytes(priv_key)) > buf_len)
 514                         buf_len = i;
 515                 }
 516
 517         buf_len += 10;
 518         if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 519                 {
 520                 reason = ERR_R_MALLOC_FAILURE;
 521                 goto err;
 522                 }
 523
 524         if (priv_key != NULL)
 525                 {
 526                 if (!BIO_indent(bp, off, 128))
 527                         goto err;
 528                 if ((order = BN_new()) == NULL)
 529                         goto err;
 530                 if (!EC_GROUP_get_order(group, order, NULL))
 531                         goto err;
 532                 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
 533                         BN_num_bits(order)) <= 0) goto err;
 534                 }
 535
 536         if ((priv_key != NULL) && !print(bp, "priv:", priv_key,
 537                 buffer, off))
 538                 goto err;
 539         if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
 540                 buffer, off))
 541                 goto err;
 542         if (!ECPKParameters_print(bp, group, off))
 543                 goto err;
 544         ret=1;
 545 err:
 546         if (!ret)
 547                 ECerr(EC_F_EC_KEY_PRINT, reason);
 548         if (pub_key)
 549                 BN_free(pub_key);
 550         if (order)
 551                 BN_free(order);
 552         if (ctx)
 553                 BN_CTX_free(ctx);
 554         if (buffer != NULL)
 555                 OPENSSL_free(buffer);
 556         return(ret);
 557         }
 558 #endif /* OPENSSL_NO_EC */
 559
 560 static int print(BIO *bp, const char *number, const BIGNUM *num, unsigned char *buf,
 561              int off)
 562         {
 563         int n,i;
 564         const char *neg;
 565
 566         if (num == NULL) return(1);
 567         neg = (BN_is_negative(num))?"-":"";
 568         if(!BIO_indent(bp,off,128))
 569                 return 0;
 570         if (BN_is_zero(num))
 571                 {
 572                 if (BIO_printf(bp, "%s 0\n", number) <= 0)
 573                         return 0;
 574                 return 1;
 575                 }
 576
 577         if (BN_num_bytes(num) <= BN_BYTES)
 578                 {
 579                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 580                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 581                         <= 0) return(0);
 582                 }
 583         else
 584                 {
 585                 buf[0]=0;
 586                 if (BIO_printf(bp,"%s%s",number,
 587                         (neg[0] == '-')?" (Negative)":"") <= 0)
 588                         return(0);
 589                 n=BN_bn2bin(num,&buf[1]);
 590
 591                 if (buf[1] & 0x80)
 592                         n++;
 593                 else    buf++;
 594
 595                 for (i=0; i<n; i++)
 596                         {
 597                         if ((i%15) == 0)
 598                                 {
 599                                 if(BIO_puts(bp,"\n") <= 0
 600                                    || !BIO_indent(bp,off+4,128))
 601                                     return 0;
 602                                 }
 603                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 604                                 <= 0) return(0);
 605                         }
 606                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 607                 }
 608         return(1);
 609         }
 610
 611 #ifndef OPENSSL_NO_EC
 612 static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
 613                 size_t len, int off)
 614         {
 615         size_t i;
 616         char str[128];
 617
 618         if (buf == NULL)
 619                 return 1;
 620         if (off)
 621                 {
 622                 if (off > 128)
 623                         off=128;
 624                 memset(str,' ',off);
 625                 if (BIO_write(fp, str, off) <= 0)
 626                         return 0;
 627                 }
 628
 629         if (BIO_printf(fp,"%s", name) <= 0)
 630                 return 0;
 631
 632         for (i=0; i<len; i++)
 633                 {
 634                 if ((i%15) == 0)
 635                         {
 636                         str[0]='\n';
 637                         memset(&(str[1]),' ',off+4);
 638                         if (BIO_write(fp, str, off+1+4) <= 0)
 639                                 return 0;
 640                         }
 641                 if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0)
 642                         return 0;
 643                 }
 644         if (BIO_write(fp,"\n",1) <= 0)
 645                 return 0;
 646
 647         return 1;
 648         }
 649 #endif
 650
 651 #ifndef OPENSSL_NO_DH
 652 #ifndef OPENSSL_NO_FP_API
 653 int DHparams_print_fp(FILE *fp, const DH *x)
 654         {
 655         BIO *b;
 656         int ret;
 657
 658         if ((b=BIO_new(BIO_s_file())) == NULL)
 659                 {
 660                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 661                 return(0);
 662                 }
 663         BIO_set_fp(b,fp,BIO_NOCLOSE);
 664         ret=DHparams_print(b, x);
 665         BIO_free(b);
 666         return(ret);
 667         }
 668 #endif
 669
 670 int DHparams_print(BIO *bp, const DH *x)
 671         {
 672         unsigned char *m=NULL;
 673         int reason=ERR_R_BUF_LIB,ret=0;
 674         size_t buf_len=0, i;
 675
 676         if (x->p)
 677                 buf_len = (size_t)BN_num_bytes(x->p);
 678         else
 679                 {
 680                 reason = ERR_R_PASSED_NULL_PARAMETER;
 681                 goto err;
 682                 }
 683         if (x->g)
 684                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 685                         buf_len = i;
 686         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 687         if (m == NULL)
 688                 {
 689                 reason=ERR_R_MALLOC_FAILURE;
 690                 goto err;
 691                 }
 692
 693         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 694                 BN_num_bits(x->p)) <= 0)
 695                 goto err;
 696         if (!print(bp,"prime:",x->p,m,4)) goto err;
 697         if (!print(bp,"generator:",x->g,m,4)) goto err;
 698         if (x->length != 0)
 699                 {
 700                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 701                         (int)x->length) <= 0) goto err;
 702                 }
 703         ret=1;
 704         if (0)
 705                 {
 706 err:
 707                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 708                 }
 709         if (m != NULL) OPENSSL_free(m);
 710         return(ret);
 711         }
 712 #endif
 713
 714 #ifndef OPENSSL_NO_DSA
 715 #ifndef OPENSSL_NO_FP_API
 716 int DSAparams_print_fp(FILE *fp, const DSA *x)
 717         {
 718         BIO *b;
 719         int ret;
 720
 721         if ((b=BIO_new(BIO_s_file())) == NULL)
 722                 {
 723                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 724                 return(0);
 725                 }
 726         BIO_set_fp(b,fp,BIO_NOCLOSE);
 727         ret=DSAparams_print(b, x);
 728         BIO_free(b);
 729         return(ret);
 730         }
 731 #endif
 732
 733 int DSAparams_print(BIO *bp, const DSA *x)
 734         {
 735         unsigned char *m=NULL;
 736         int ret=0;
 737         size_t buf_len=0,i;
 738
 739         if (x->p)
 740                 buf_len = (size_t)BN_num_bytes(x->p);
 741         else
 742                 {
 743                 DSAerr(DSA_F_DSAPARAMS_PRINT,DSA_R_MISSING_PARAMETERS);
 744                 goto err;
 745                 }
 746         if (x->q)
 747                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 748                         buf_len = i;
 749         if (x->g)
 750                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 751                         buf_len = i;
 752         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 753         if (m == NULL)
 754                 {
 755                 DSAerr(DSA_F_DSAPARAMS_PRINT,ERR_R_MALLOC_FAILURE);
 756                 goto err;
 757                 }
 758
 759         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 760                 BN_num_bits(x->p)) <= 0)
 761                 goto err;
 762         if (!print(bp,"p:",x->p,m,4)) goto err;
 763         if (!print(bp,"q:",x->q,m,4)) goto err;
 764         if (!print(bp,"g:",x->g,m,4)) goto err;
 765         ret=1;
 766 err:
 767         if (m != NULL) OPENSSL_free(m);
 768         return(ret);
 769         }
 770
 771 #endif /* !OPENSSL_NO_DSA */
 772
 773 #ifndef OPENSSL_NO_EC
 774 #ifndef OPENSSL_NO_FP_API
 775 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
 776         {
 777         BIO *b;
 778         int ret;
 779
 780         if ((b=BIO_new(BIO_s_file())) == NULL)
 781                 {
 782                 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
 783                 return(0);
 784                 }
 785         BIO_set_fp(b, fp, BIO_NOCLOSE);
 786         ret = ECParameters_print(b, x);
 787         BIO_free(b);
 788         return(ret);
 789         }
 790 #endif
 791
 792 int ECParameters_print(BIO *bp, const EC_KEY *x)
 793         {
 794         int     reason=ERR_R_EC_LIB, ret=0;
 795         BIGNUM  *order=NULL;
 796         const EC_GROUP *group;
 797
 798         if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
 799                 {
 800                 reason = ERR_R_PASSED_NULL_PARAMETER;;
 801                 goto err;
 802                 }
 803
 804         if ((order = BN_new()) == NULL)
 805                 {
 806                 reason = ERR_R_MALLOC_FAILURE;
 807                 goto err;
 808                 }
 809
 810         if (!EC_GROUP_get_order(group, order, NULL))
 811                 {
 812                 reason = ERR_R_EC_LIB;
 813                 goto err;
 814                 }
 815
 816         if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
 817                 BN_num_bits(order)) <= 0)
 818                 goto err;
 819         if (!ECPKParameters_print(bp, group, 4))
 820                 goto err;
 821         ret=1;
 822 err:
 823         if (order)
 824                 BN_free(order);
 825         ECerr(EC_F_ECPARAMETERS_PRINT, reason);
 826         return(ret);
 827         }
 828
 829 #endif