crypto/openssl/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, mod_len = 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->n != NULL)
 147                 mod_len = BN_num_bits(x->n);
 148
 149         if (x->d != NULL)
 150                 {
 151                 if(!BIO_indent(bp,off,128))
 152                    goto err;
 153                 if (BIO_printf(bp,"Private-Key: (%d bit)\n", mod_len)
 154                         <= 0) goto err;
 155                 }
 156
 157         if (x->d == NULL)
 158                 BIO_snprintf(str,sizeof str,"Modulus (%d bit):", mod_len);
 159         else
 160                 BUF_strlcpy(str,"modulus:",sizeof str);
 161         if (!print(bp,str,x->n,m,off)) goto err;
 162         s=(x->d == NULL)?"Exponent:":"publicExponent:";
 163         if ((x->e != NULL) && !print(bp,s,x->e,m,off))
 164                 goto err;
 165         if ((x->d != NULL) && !print(bp,"privateExponent:",x->d,m,off))
 166                 goto err;
 167         if ((x->p != NULL) && !print(bp,"prime1:",x->p,m,off))
 168                 goto err;
 169         if ((x->q != NULL) && !print(bp,"prime2:",x->q,m,off))
 170                 goto err;
 171         if ((x->dmp1 != NULL) && !print(bp,"exponent1:",x->dmp1,m,off))
 172                 goto err;
 173         if ((x->dmq1 != NULL) && !print(bp,"exponent2:",x->dmq1,m,off))
 174                 goto err;
 175         if ((x->iqmp != NULL) && !print(bp,"coefficient:",x->iqmp,m,off))
 176                 goto err;
 177         ret=1;
 178 err:
 179         if (m != NULL) OPENSSL_free(m);
 180         return(ret);
 181         }
 182 #endif /* OPENSSL_NO_RSA */
 183
 184 #ifndef OPENSSL_NO_DSA
 185 #ifndef OPENSSL_NO_FP_API
 186 int DSA_print_fp(FILE *fp, const DSA *x, int off)
 187         {
 188         BIO *b;
 189         int ret;
 190
 191         if ((b=BIO_new(BIO_s_file())) == NULL)
 192                 {
 193                 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
 194                 return(0);
 195                 }
 196         BIO_set_fp(b,fp,BIO_NOCLOSE);
 197         ret=DSA_print(b,x,off);
 198         BIO_free(b);
 199         return(ret);
 200         }
 201 #endif
 202
 203 int DSA_print(BIO *bp, const DSA *x, int off)
 204         {
 205         unsigned char *m=NULL;
 206         int ret=0;
 207         size_t buf_len=0,i;
 208
 209         if (x->p)
 210                 buf_len = (size_t)BN_num_bytes(x->p);
 211         if (x->q)
 212                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 213                         buf_len = i;
 214         if (x->g)
 215                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 216                         buf_len = i;
 217         if (x->priv_key)
 218                 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
 219                         buf_len = i;
 220         if (x->pub_key)
 221                 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
 222                         buf_len = i;
 223
 224         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 225         if (m == NULL)
 226                 {
 227                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 228                 goto err;
 229                 }
 230
 231         if (x->priv_key != NULL)
 232                 {
 233                 if(!BIO_indent(bp,off,128))
 234                    goto err;
 235                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 236                         <= 0) goto err;
 237                 }
 238
 239         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 240                 goto err;
 241         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 242                 goto err;
 243         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 244         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 245         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 246         ret=1;
 247 err:
 248         if (m != NULL) OPENSSL_free(m);
 249         return(ret);
 250         }
 251 #endif /* !OPENSSL_NO_DSA */
 252
 253 #ifndef OPENSSL_NO_EC
 254 #ifndef OPENSSL_NO_FP_API
 255 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
 256         {
 257         BIO *b;
 258         int ret;
 259
 260         if ((b=BIO_new(BIO_s_file())) == NULL)
 261                 {
 262                 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB);
 263                 return(0);
 264                 }
 265         BIO_set_fp(b, fp, BIO_NOCLOSE);
 266         ret = ECPKParameters_print(b, x, off);
 267         BIO_free(b);
 268         return(ret);
 269         }
 270
 271 int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
 272         {
 273         BIO *b;
 274         int ret;
 275
 276         if ((b=BIO_new(BIO_s_file())) == NULL)
 277                 {
 278                 ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
 279                 return(0);
 280                 }
 281         BIO_set_fp(b, fp, BIO_NOCLOSE);
 282         ret = EC_KEY_print(b, x, off);
 283         BIO_free(b);
 284         return(ret);
 285         }
 286 #endif
 287
 288 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
 289         {
 290         unsigned char *buffer=NULL;
 291         size_t  buf_len=0, i;
 292         int     ret=0, reason=ERR_R_BIO_LIB;
 293         BN_CTX  *ctx=NULL;
 294         const EC_POINT *point=NULL;
 295         BIGNUM  *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
 296                 *order=NULL, *cofactor=NULL;
 297         const unsigned char *seed;
 298         size_t  seed_len=0;
 299
 300         static const char *gen_compressed = "Generator (compressed):";
 301         static const char *gen_uncompressed = "Generator (uncompressed):";
 302         static const char *gen_hybrid = "Generator (hybrid):";
 303
 304         if (!x)
 305                 {
 306                 reason = ERR_R_PASSED_NULL_PARAMETER;
 307                 goto err;
 308                 }
 309
 310         if (EC_GROUP_get_asn1_flag(x))
 311                 {
 312                 /* the curve parameter are given by an asn1 OID */
 313                 int nid;
 314
 315                 if (!BIO_indent(bp, off, 128))
 316                         goto err;
 317
 318                 nid = EC_GROUP_get_curve_name(x);
 319                 if (nid == 0)
 320                         goto err;
 321
 322                 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
 323                         goto err;
 324                 if (BIO_printf(bp, "\n") <= 0)
 325                         goto err;
 326                 }
 327         else
 328                 {
 329                 /* explicit parameters */
 330                 int is_char_two = 0;
 331                 point_conversion_form_t form;
 332                 int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
 333
 334                 if (tmp_nid == NID_X9_62_characteristic_two_field)
 335                         is_char_two = 1;
 336
 337                 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
 338                         (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
 339                         (cofactor = BN_new()) == NULL)
 340                         {
 341                         reason = ERR_R_MALLOC_FAILURE;
 342                         goto err;
 343                         }
 344
 345                 if (is_char_two)
 346                         {
 347                         if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx))
 348                                 {
 349                                 reason = ERR_R_EC_LIB;
 350                                 goto err;
 351                                 }
 352                         }
 353                 else /* prime field */
 354                         {
 355                         if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
 356                                 {
 357                                 reason = ERR_R_EC_LIB;
 358                                 goto err;
 359                                 }
 360                         }
 361
 362                 if ((point = EC_GROUP_get0_generator(x)) == NULL)
 363                         {
 364                         reason = ERR_R_EC_LIB;
 365                         goto err;
 366                         }
 367                 if (!EC_GROUP_get_order(x, order, NULL) ||
 368                         !EC_GROUP_get_cofactor(x, cofactor, NULL))
 369                         {
 370                         reason = ERR_R_EC_LIB;
 371                         goto err;
 372                         }
 373
 374                 form = EC_GROUP_get_point_conversion_form(x);
 375
 376                 if ((gen = EC_POINT_point2bn(x, point,
 377                                 form, NULL, ctx)) == NULL)
 378                         {
 379                         reason = ERR_R_EC_LIB;
 380                         goto err;
 381                         }
 382
 383                 buf_len = (size_t)BN_num_bytes(p);
 384                 if (buf_len < (i = (size_t)BN_num_bytes(a)))
 385                         buf_len = i;
 386                 if (buf_len < (i = (size_t)BN_num_bytes(b)))
 387                         buf_len = i;
 388                 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
 389                         buf_len = i;
 390                 if (buf_len < (i = (size_t)BN_num_bytes(order)))
 391                         buf_len = i;
 392                 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
 393                         buf_len = i;
 394
 395                 if ((seed = EC_GROUP_get0_seed(x)) != NULL)
 396                         seed_len = EC_GROUP_get_seed_len(x);
 397
 398                 buf_len += 10;
 399                 if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 400                         {
 401                         reason = ERR_R_MALLOC_FAILURE;
 402                         goto err;
 403                         }
 404
 405                 if (!BIO_indent(bp, off, 128))
 406                         goto err;
 407
 408                 /* print the 'short name' of the field type */
 409                 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
 410                         <= 0)
 411                         goto err;
 412
 413                 if (is_char_two)
 414                         {
 415                         /* print the 'short name' of the base type OID */
 416                         int basis_type = EC_GROUP_get_basis_type(x);
 417                         if (basis_type == 0)
 418                                 goto err;
 419
 420                         if (!BIO_indent(bp, off, 128))
 421                                 goto err;
 422
 423                         if (BIO_printf(bp, "Basis Type: %s\n",
 424                                 OBJ_nid2sn(basis_type)) <= 0)
 425                                 goto err;
 426
 427                         /* print the polynomial */
 428                         if ((p != NULL) && !print(bp, "Polynomial:", p, buffer,
 429                                 off))
 430                                 goto err;
 431                         }
 432                 else
 433                         {
 434                         if ((p != NULL) && !print(bp, "Prime:", p, buffer,off))
 435                                 goto err;
 436                         }
 437                 if ((a != NULL) && !print(bp, "A:   ", a, buffer, off))
 438                         goto err;
 439                 if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
 440                         goto err;
 441                 if (form == POINT_CONVERSION_COMPRESSED)
 442                         {
 443                         if ((gen != NULL) && !print(bp, gen_compressed, gen,
 444                                 buffer, off))
 445                                 goto err;
 446                         }
 447                 else if (form == POINT_CONVERSION_UNCOMPRESSED)
 448                         {
 449                         if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
 450                                 buffer, off))
 451                                 goto err;
 452                         }
 453                 else /* form == POINT_CONVERSION_HYBRID */
 454                         {
 455                         if ((gen != NULL) && !print(bp, gen_hybrid, gen,
 456                                 buffer, off))
 457                                 goto err;
 458                         }
 459                 if ((order != NULL) && !print(bp, "Order: ", order,
 460                         buffer, off)) goto err;
 461                 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
 462                         buffer, off)) goto err;
 463                 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
 464                         goto err;
 465                 }
 466         ret=1;
 467 err:
 468         if (!ret)
 469                 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
 470         if (p)
 471                 BN_free(p);
 472         if (a)
 473                 BN_free(a);
 474         if (b)
 475                 BN_free(b);
 476         if (gen)
 477                 BN_free(gen);
 478         if (order)
 479                 BN_free(order);
 480         if (cofactor)
 481                 BN_free(cofactor);
 482         if (ctx)
 483                 BN_CTX_free(ctx);
 484         if (buffer != NULL)
 485                 OPENSSL_free(buffer);
 486         return(ret);
 487         }
 488
 489 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
 490         {
 491         unsigned char *buffer=NULL;
 492         size_t  buf_len=0, i;
 493         int     ret=0, reason=ERR_R_BIO_LIB;
 494         BIGNUM  *pub_key=NULL, *order=NULL;
 495         BN_CTX  *ctx=NULL;
 496         const EC_GROUP *group;
 497         const EC_POINT *public_key;
 498         const BIGNUM *priv_key;
 499
 500         if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
 501                 {
 502                 reason = ERR_R_PASSED_NULL_PARAMETER;
 503                 goto err;
 504                 }
 505
 506         public_key = EC_KEY_get0_public_key(x);
 507         if ((pub_key = EC_POINT_point2bn(group, public_key,
 508                 EC_KEY_get_conv_form(x), NULL, ctx)) == NULL)
 509                 {
 510                 reason = ERR_R_EC_LIB;
 511                 goto err;
 512                 }
 513
 514         buf_len = (size_t)BN_num_bytes(pub_key);
 515         priv_key = EC_KEY_get0_private_key(x);
 516         if (priv_key != NULL)
 517                 {
 518                 if ((i = (size_t)BN_num_bytes(priv_key)) > buf_len)
 519                         buf_len = i;
 520                 }
 521
 522         buf_len += 10;
 523         if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 524                 {
 525                 reason = ERR_R_MALLOC_FAILURE;
 526                 goto err;
 527                 }
 528
 529         if (priv_key != NULL)
 530                 {
 531                 if (!BIO_indent(bp, off, 128))
 532                         goto err;
 533                 if ((order = BN_new()) == NULL)
 534                         goto err;
 535                 if (!EC_GROUP_get_order(group, order, NULL))
 536                         goto err;
 537                 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
 538                         BN_num_bits(order)) <= 0) goto err;
 539                 }
 540
 541         if ((priv_key != NULL) && !print(bp, "priv:", priv_key,
 542                 buffer, off))
 543                 goto err;
 544         if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
 545                 buffer, off))
 546                 goto err;
 547         if (!ECPKParameters_print(bp, group, off))
 548                 goto err;
 549         ret=1;
 550 err:
 551         if (!ret)
 552                 ECerr(EC_F_EC_KEY_PRINT, reason);
 553         if (pub_key)
 554                 BN_free(pub_key);
 555         if (order)
 556                 BN_free(order);
 557         if (ctx)
 558                 BN_CTX_free(ctx);
 559         if (buffer != NULL)
 560                 OPENSSL_free(buffer);
 561         return(ret);
 562         }
 563 #endif /* OPENSSL_NO_EC */
 564
 565 static int print(BIO *bp, const char *number, const BIGNUM *num, unsigned char *buf,
 566              int off)
 567         {
 568         int n,i;
 569         const char *neg;
 570
 571         if (num == NULL) return(1);
 572         neg = (BN_is_negative(num))?"-":"";
 573         if(!BIO_indent(bp,off,128))
 574                 return 0;
 575         if (BN_is_zero(num))
 576                 {
 577                 if (BIO_printf(bp, "%s 0\n", number) <= 0)
 578                         return 0;
 579                 return 1;
 580                 }
 581
 582         if (BN_num_bytes(num) <= BN_BYTES)
 583                 {
 584                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 585                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 586                         <= 0) return(0);
 587                 }
 588         else
 589                 {
 590                 buf[0]=0;
 591                 if (BIO_printf(bp,"%s%s",number,
 592                         (neg[0] == '-')?" (Negative)":"") <= 0)
 593                         return(0);
 594                 n=BN_bn2bin(num,&buf[1]);
 595
 596                 if (buf[1] & 0x80)
 597                         n++;
 598                 else    buf++;
 599
 600                 for (i=0; i<n; i++)
 601                         {
 602                         if ((i%15) == 0)
 603                                 {
 604                                 if(BIO_puts(bp,"\n") <= 0
 605                                    || !BIO_indent(bp,off+4,128))
 606                                     return 0;
 607                                 }
 608                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 609                                 <= 0) return(0);
 610                         }
 611                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 612                 }
 613         return(1);
 614         }
 615
 616 #ifndef OPENSSL_NO_EC
 617 static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
 618                 size_t len, int off)
 619         {
 620         size_t i;
 621         char str[128];
 622
 623         if (buf == NULL)
 624                 return 1;
 625         if (off)
 626                 {
 627                 if (off > 128)
 628                         off=128;
 629                 memset(str,' ',off);
 630                 if (BIO_write(fp, str, off) <= 0)
 631                         return 0;
 632                 }
 633
 634         if (BIO_printf(fp,"%s", name) <= 0)
 635                 return 0;
 636
 637         for (i=0; i<len; i++)
 638                 {
 639                 if ((i%15) == 0)
 640                         {
 641                         str[0]='\n';
 642                         memset(&(str[1]),' ',off+4);
 643                         if (BIO_write(fp, str, off+1+4) <= 0)
 644                                 return 0;
 645                         }
 646                 if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0)
 647                         return 0;
 648                 }
 649         if (BIO_write(fp,"\n",1) <= 0)
 650                 return 0;
 651
 652         return 1;
 653         }
 654 #endif
 655
 656 #ifndef OPENSSL_NO_DH
 657 #ifndef OPENSSL_NO_FP_API
 658 int DHparams_print_fp(FILE *fp, const DH *x)
 659         {
 660         BIO *b;
 661         int ret;
 662
 663         if ((b=BIO_new(BIO_s_file())) == NULL)
 664                 {
 665                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 666                 return(0);
 667                 }
 668         BIO_set_fp(b,fp,BIO_NOCLOSE);
 669         ret=DHparams_print(b, x);
 670         BIO_free(b);
 671         return(ret);
 672         }
 673 #endif
 674
 675 int DHparams_print(BIO *bp, const DH *x)
 676         {
 677         unsigned char *m=NULL;
 678         int reason=ERR_R_BUF_LIB,ret=0;
 679         size_t buf_len=0, i;
 680
 681         if (x->p)
 682                 buf_len = (size_t)BN_num_bytes(x->p);
 683         else
 684                 {
 685                 reason = ERR_R_PASSED_NULL_PARAMETER;
 686                 goto err;
 687                 }
 688         if (x->g)
 689                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 690                         buf_len = i;
 691         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 692         if (m == NULL)
 693                 {
 694                 reason=ERR_R_MALLOC_FAILURE;
 695                 goto err;
 696                 }
 697
 698         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 699                 BN_num_bits(x->p)) <= 0)
 700                 goto err;
 701         if (!print(bp,"prime:",x->p,m,4)) goto err;
 702         if (!print(bp,"generator:",x->g,m,4)) goto err;
 703         if (x->length != 0)
 704                 {
 705                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 706                         (int)x->length) <= 0) goto err;
 707                 }
 708         ret=1;
 709         if (0)
 710                 {
 711 err:
 712                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 713                 }
 714         if (m != NULL) OPENSSL_free(m);
 715         return(ret);
 716         }
 717 #endif
 718
 719 #ifndef OPENSSL_NO_DSA
 720 #ifndef OPENSSL_NO_FP_API
 721 int DSAparams_print_fp(FILE *fp, const DSA *x)
 722         {
 723         BIO *b;
 724         int ret;
 725
 726         if ((b=BIO_new(BIO_s_file())) == NULL)
 727                 {
 728                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 729                 return(0);
 730                 }
 731         BIO_set_fp(b,fp,BIO_NOCLOSE);
 732         ret=DSAparams_print(b, x);
 733         BIO_free(b);
 734         return(ret);
 735         }
 736 #endif
 737
 738 int DSAparams_print(BIO *bp, const DSA *x)
 739         {
 740         unsigned char *m=NULL;
 741         int ret=0;
 742         size_t buf_len=0,i;
 743
 744         if (x->p)
 745                 buf_len = (size_t)BN_num_bytes(x->p);
 746         else
 747                 {
 748                 DSAerr(DSA_F_DSAPARAMS_PRINT,DSA_R_MISSING_PARAMETERS);
 749                 goto err;
 750                 }
 751         if (x->q)
 752                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 753                         buf_len = i;
 754         if (x->g)
 755                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 756                         buf_len = i;
 757         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 758         if (m == NULL)
 759                 {
 760                 DSAerr(DSA_F_DSAPARAMS_PRINT,ERR_R_MALLOC_FAILURE);
 761                 goto err;
 762                 }
 763
 764         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 765                 BN_num_bits(x->p)) <= 0)
 766                 goto err;
 767         if (!print(bp,"p:",x->p,m,4)) goto err;
 768         if ((x->q != NULL) && !print(bp,"q:",x->q,m,4)) goto err;
 769         if ((x->g != NULL) && !print(bp,"g:",x->g,m,4)) goto err;
 770         ret=1;
 771 err:
 772         if (m != NULL) OPENSSL_free(m);
 773         return(ret);
 774         }
 775
 776 #endif /* !OPENSSL_NO_DSA */
 777
 778 #ifndef OPENSSL_NO_EC
 779 #ifndef OPENSSL_NO_FP_API
 780 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
 781         {
 782         BIO *b;
 783         int ret;
 784
 785         if ((b=BIO_new(BIO_s_file())) == NULL)
 786                 {
 787                 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
 788                 return(0);
 789                 }
 790         BIO_set_fp(b, fp, BIO_NOCLOSE);
 791         ret = ECParameters_print(b, x);
 792         BIO_free(b);
 793         return(ret);
 794         }
 795 #endif
 796
 797 int ECParameters_print(BIO *bp, const EC_KEY *x)
 798         {
 799         int     reason=ERR_R_EC_LIB, ret=0;
 800         BIGNUM  *order=NULL;
 801         const EC_GROUP *group;
 802
 803         if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
 804                 {
 805                 reason = ERR_R_PASSED_NULL_PARAMETER;;
 806                 goto err;
 807                 }
 808
 809         if ((order = BN_new()) == NULL)
 810                 {
 811                 reason = ERR_R_MALLOC_FAILURE;
 812                 goto err;
 813                 }
 814
 815         if (!EC_GROUP_get_order(group, order, NULL))
 816                 {
 817                 reason = ERR_R_EC_LIB;
 818                 goto err;
 819                 }
 820
 821         if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
 822                 BN_num_bits(order)) <= 0)
 823                 goto err;
 824         if (!ECPKParameters_print(bp, group, 4))
 825                 goto err;
 826         ret=1;
 827 err:
 828         if (order)
 829                 BN_free(order);
 830         ECerr(EC_F_ECPARAMETERS_PRINT, reason);
 831         return(ret);
 832         }
 833
 834 #endif