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         else
 212                 {
 213                 DSAerr(DSA_F_DSA_PRINT,DSA_R_MISSING_PARAMETERS);
 214                 goto err;
 215                 }
 216         if (x->q)
 217                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 218                         buf_len = i;
 219         if (x->g)
 220                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 221                         buf_len = i;
 222         if (x->priv_key)
 223                 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
 224                         buf_len = i;
 225         if (x->pub_key)
 226                 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
 227                         buf_len = i;
 228
 229         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 230         if (m == NULL)
 231                 {
 232                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 233                 goto err;
 234                 }
 235
 236         if (x->priv_key != NULL)
 237                 {
 238                 if(!BIO_indent(bp,off,128))
 239                    goto err;
 240                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 241                         <= 0) goto err;
 242                 }
 243
 244         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 245                 goto err;
 246         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 247                 goto err;
 248         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 249         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 250         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 251         ret=1;
 252 err:
 253         if (m != NULL) OPENSSL_free(m);
 254         return(ret);
 255         }
 256 #endif /* !OPENSSL_NO_DSA */
 257
 258 #ifndef OPENSSL_NO_EC
 259 #ifndef OPENSSL_NO_FP_API
 260 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
 261         {
 262         BIO *b;
 263         int ret;
 264
 265         if ((b=BIO_new(BIO_s_file())) == NULL)
 266                 {
 267                 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB);
 268                 return(0);
 269                 }
 270         BIO_set_fp(b, fp, BIO_NOCLOSE);
 271         ret = ECPKParameters_print(b, x, off);
 272         BIO_free(b);
 273         return(ret);
 274         }
 275
 276 int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
 277         {
 278         BIO *b;
 279         int ret;
 280
 281         if ((b=BIO_new(BIO_s_file())) == NULL)
 282                 {
 283                 ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
 284                 return(0);
 285                 }
 286         BIO_set_fp(b, fp, BIO_NOCLOSE);
 287         ret = EC_KEY_print(b, x, off);
 288         BIO_free(b);
 289         return(ret);
 290         }
 291 #endif
 292
 293 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
 294         {
 295         unsigned char *buffer=NULL;
 296         size_t  buf_len=0, i;
 297         int     ret=0, reason=ERR_R_BIO_LIB;
 298         BN_CTX  *ctx=NULL;
 299         const EC_POINT *point=NULL;
 300         BIGNUM  *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
 301                 *order=NULL, *cofactor=NULL;
 302         const unsigned char *seed;
 303         size_t  seed_len=0;
 304
 305         static const char *gen_compressed = "Generator (compressed):";
 306         static const char *gen_uncompressed = "Generator (uncompressed):";
 307         static const char *gen_hybrid = "Generator (hybrid):";
 308
 309         if (!x)
 310                 {
 311                 reason = ERR_R_PASSED_NULL_PARAMETER;
 312                 goto err;
 313                 }
 314
 315         ctx = BN_CTX_new();
 316         if (ctx == NULL)
 317                 {
 318                 reason = ERR_R_MALLOC_FAILURE;
 319                 goto err;
 320                 }
 321
 322         if (EC_GROUP_get_asn1_flag(x))
 323                 {
 324                 /* the curve parameter are given by an asn1 OID */
 325                 int nid;
 326
 327                 if (!BIO_indent(bp, off, 128))
 328                         goto err;
 329
 330                 nid = EC_GROUP_get_curve_name(x);
 331                 if (nid == 0)
 332                         goto err;
 333
 334                 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
 335                         goto err;
 336                 if (BIO_printf(bp, "\n") <= 0)
 337                         goto err;
 338                 }
 339         else
 340                 {
 341                 /* explicit parameters */
 342                 int is_char_two = 0;
 343                 point_conversion_form_t form;
 344                 int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
 345
 346                 if (tmp_nid == NID_X9_62_characteristic_two_field)
 347                         is_char_two = 1;
 348
 349                 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
 350                         (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
 351                         (cofactor = BN_new()) == NULL)
 352                         {
 353                         reason = ERR_R_MALLOC_FAILURE;
 354                         goto err;
 355                         }
 356
 357                 if (is_char_two)
 358                         {
 359                         if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx))
 360                                 {
 361                                 reason = ERR_R_EC_LIB;
 362                                 goto err;
 363                                 }
 364                         }
 365                 else /* prime field */
 366                         {
 367                         if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
 368                                 {
 369                                 reason = ERR_R_EC_LIB;
 370                                 goto err;
 371                                 }
 372                         }
 373
 374                 if ((point = EC_GROUP_get0_generator(x)) == NULL)
 375                         {
 376                         reason = ERR_R_EC_LIB;
 377                         goto err;
 378                         }
 379                 if (!EC_GROUP_get_order(x, order, NULL) ||
 380                         !EC_GROUP_get_cofactor(x, cofactor, NULL))
 381                         {
 382                         reason = ERR_R_EC_LIB;
 383                         goto err;
 384                         }
 385
 386                 form = EC_GROUP_get_point_conversion_form(x);
 387
 388                 if ((gen = EC_POINT_point2bn(x, point,
 389                                 form, NULL, ctx)) == NULL)
 390                         {
 391                         reason = ERR_R_EC_LIB;
 392                         goto err;
 393                         }
 394
 395                 buf_len = (size_t)BN_num_bytes(p);
 396                 if (buf_len < (i = (size_t)BN_num_bytes(a)))
 397                         buf_len = i;
 398                 if (buf_len < (i = (size_t)BN_num_bytes(b)))
 399                         buf_len = i;
 400                 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
 401                         buf_len = i;
 402                 if (buf_len < (i = (size_t)BN_num_bytes(order)))
 403                         buf_len = i;
 404                 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
 405                         buf_len = i;
 406
 407                 if ((seed = EC_GROUP_get0_seed(x)) != NULL)
 408                         seed_len = EC_GROUP_get_seed_len(x);
 409
 410                 buf_len += 10;
 411                 if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 412                         {
 413                         reason = ERR_R_MALLOC_FAILURE;
 414                         goto err;
 415                         }
 416
 417                 if (!BIO_indent(bp, off, 128))
 418                         goto err;
 419
 420                 /* print the 'short name' of the field type */
 421                 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
 422                         <= 0)
 423                         goto err;
 424
 425                 if (is_char_two)
 426                         {
 427                         /* print the 'short name' of the base type OID */
 428                         int basis_type = EC_GROUP_get_basis_type(x);
 429                         if (basis_type == 0)
 430                                 goto err;
 431
 432                         if (!BIO_indent(bp, off, 128))
 433                                 goto err;
 434
 435                         if (BIO_printf(bp, "Basis Type: %s\n",
 436                                 OBJ_nid2sn(basis_type)) <= 0)
 437                                 goto err;
 438
 439                         /* print the polynomial */
 440                         if ((p != NULL) && !print(bp, "Polynomial:", p, buffer,
 441                                 off))
 442                                 goto err;
 443                         }
 444                 else
 445                         {
 446                         if ((p != NULL) && !print(bp, "Prime:", p, buffer,off))
 447                                 goto err;
 448                         }
 449                 if ((a != NULL) && !print(bp, "A:   ", a, buffer, off))
 450                         goto err;
 451                 if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
 452                         goto err;
 453                 if (form == POINT_CONVERSION_COMPRESSED)
 454                         {
 455                         if ((gen != NULL) && !print(bp, gen_compressed, gen,
 456                                 buffer, off))
 457                                 goto err;
 458                         }
 459                 else if (form == POINT_CONVERSION_UNCOMPRESSED)
 460                         {
 461                         if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
 462                                 buffer, off))
 463                                 goto err;
 464                         }
 465                 else /* form == POINT_CONVERSION_HYBRID */
 466                         {
 467                         if ((gen != NULL) && !print(bp, gen_hybrid, gen,
 468                                 buffer, off))
 469                                 goto err;
 470                         }
 471                 if ((order != NULL) && !print(bp, "Order: ", order,
 472                         buffer, off)) goto err;
 473                 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
 474                         buffer, off)) goto err;
 475                 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
 476                         goto err;
 477                 }
 478         ret=1;
 479 err:
 480         if (!ret)
 481                 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
 482         if (p)
 483                 BN_free(p);
 484         if (a)
 485                 BN_free(a);
 486         if (b)
 487                 BN_free(b);
 488         if (gen)
 489                 BN_free(gen);
 490         if (order)
 491                 BN_free(order);
 492         if (cofactor)
 493                 BN_free(cofactor);
 494         if (ctx)
 495                 BN_CTX_free(ctx);
 496         if (buffer != NULL)
 497                 OPENSSL_free(buffer);
 498         return(ret);
 499         }
 500
 501 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
 502         {
 503         unsigned char *buffer=NULL;
 504         size_t  buf_len=0, i;
 505         int     ret=0, reason=ERR_R_BIO_LIB;
 506         BIGNUM  *pub_key=NULL, *order=NULL;
 507         BN_CTX  *ctx=NULL;
 508         const EC_GROUP *group;
 509         const EC_POINT *public_key;
 510         const BIGNUM *priv_key;
 511
 512         if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
 513                 {
 514                 reason = ERR_R_PASSED_NULL_PARAMETER;
 515                 goto err;
 516                 }
 517
 518         ctx = BN_CTX_new();
 519         if (ctx == NULL)
 520                 {
 521                 reason = ERR_R_MALLOC_FAILURE;
 522                 goto err;
 523                 }
 524
 525         public_key = EC_KEY_get0_public_key(x);
 526         if ((pub_key = EC_POINT_point2bn(group, public_key,
 527                 EC_KEY_get_conv_form(x), NULL, ctx)) == NULL)
 528                 {
 529                 reason = ERR_R_EC_LIB;
 530                 goto err;
 531                 }
 532
 533         buf_len = (size_t)BN_num_bytes(pub_key);
 534         priv_key = EC_KEY_get0_private_key(x);
 535         if (priv_key != NULL)
 536                 {
 537                 if ((i = (size_t)BN_num_bytes(priv_key)) > buf_len)
 538                         buf_len = i;
 539                 }
 540
 541         buf_len += 10;
 542         if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 543                 {
 544                 reason = ERR_R_MALLOC_FAILURE;
 545                 goto err;
 546                 }
 547
 548         if (priv_key != NULL)
 549                 {
 550                 if (!BIO_indent(bp, off, 128))
 551                         goto err;
 552                 if ((order = BN_new()) == NULL)
 553                         goto err;
 554                 if (!EC_GROUP_get_order(group, order, NULL))
 555                         goto err;
 556                 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
 557                         BN_num_bits(order)) <= 0) goto err;
 558                 }
 559
 560         if ((priv_key != NULL) && !print(bp, "priv:", priv_key,
 561                 buffer, off))
 562                 goto err;
 563         if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
 564                 buffer, off))
 565                 goto err;
 566         if (!ECPKParameters_print(bp, group, off))
 567                 goto err;
 568         ret=1;
 569 err:
 570         if (!ret)
 571                 ECerr(EC_F_EC_KEY_PRINT, reason);
 572         if (pub_key)
 573                 BN_free(pub_key);
 574         if (order)
 575                 BN_free(order);
 576         if (ctx)
 577                 BN_CTX_free(ctx);
 578         if (buffer != NULL)
 579                 OPENSSL_free(buffer);
 580         return(ret);
 581         }
 582 #endif /* OPENSSL_NO_EC */
 583
 584 static int print(BIO *bp, const char *number, const BIGNUM *num, unsigned char *buf,
 585              int off)
 586         {
 587         int n,i;
 588         const char *neg;
 589
 590         if (num == NULL) return(1);
 591         neg = (BN_is_negative(num))?"-":"";
 592         if(!BIO_indent(bp,off,128))
 593                 return 0;
 594         if (BN_is_zero(num))
 595                 {
 596                 if (BIO_printf(bp, "%s 0\n", number) <= 0)
 597                         return 0;
 598                 return 1;
 599                 }
 600
 601         if (BN_num_bytes(num) <= BN_BYTES)
 602                 {
 603                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 604                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 605                         <= 0) return(0);
 606                 }
 607         else
 608                 {
 609                 buf[0]=0;
 610                 if (BIO_printf(bp,"%s%s",number,
 611                         (neg[0] == '-')?" (Negative)":"") <= 0)
 612                         return(0);
 613                 n=BN_bn2bin(num,&buf[1]);
 614
 615                 if (buf[1] & 0x80)
 616                         n++;
 617                 else    buf++;
 618
 619                 for (i=0; i<n; i++)
 620                         {
 621                         if ((i%15) == 0)
 622                                 {
 623                                 if(BIO_puts(bp,"\n") <= 0
 624                                    || !BIO_indent(bp,off+4,128))
 625                                     return 0;
 626                                 }
 627                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 628                                 <= 0) return(0);
 629                         }
 630                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 631                 }
 632         return(1);
 633         }
 634
 635 #ifndef OPENSSL_NO_EC
 636 static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
 637                 size_t len, int off)
 638         {
 639         size_t i;
 640         char str[128];
 641
 642         if (buf == NULL)
 643                 return 1;
 644         if (off)
 645                 {
 646                 if (off > 128)
 647                         off=128;
 648                 memset(str,' ',off);
 649                 if (BIO_write(fp, str, off) <= 0)
 650                         return 0;
 651                 }
 652
 653         if (BIO_printf(fp,"%s", name) <= 0)
 654                 return 0;
 655
 656         for (i=0; i<len; i++)
 657                 {
 658                 if ((i%15) == 0)
 659                         {
 660                         str[0]='\n';
 661                         memset(&(str[1]),' ',off+4);
 662                         if (BIO_write(fp, str, off+1+4) <= 0)
 663                                 return 0;
 664                         }
 665                 if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0)
 666                         return 0;
 667                 }
 668         if (BIO_write(fp,"\n",1) <= 0)
 669                 return 0;
 670
 671         return 1;
 672         }
 673 #endif
 674
 675 #ifndef OPENSSL_NO_DH
 676 #ifndef OPENSSL_NO_FP_API
 677 int DHparams_print_fp(FILE *fp, const DH *x)
 678         {
 679         BIO *b;
 680         int ret;
 681
 682         if ((b=BIO_new(BIO_s_file())) == NULL)
 683                 {
 684                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 685                 return(0);
 686                 }
 687         BIO_set_fp(b,fp,BIO_NOCLOSE);
 688         ret=DHparams_print(b, x);
 689         BIO_free(b);
 690         return(ret);
 691         }
 692 #endif
 693
 694 int DHparams_print(BIO *bp, const DH *x)
 695         {
 696         unsigned char *m=NULL;
 697         int reason=ERR_R_BUF_LIB,ret=0;
 698         size_t buf_len=0, i;
 699
 700         if (x->p)
 701                 buf_len = (size_t)BN_num_bytes(x->p);
 702         else
 703                 {
 704                 reason = ERR_R_PASSED_NULL_PARAMETER;
 705                 goto err;
 706                 }
 707         if (x->g)
 708                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 709                         buf_len = i;
 710         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 711         if (m == NULL)
 712                 {
 713                 reason=ERR_R_MALLOC_FAILURE;
 714                 goto err;
 715                 }
 716
 717         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 718                 BN_num_bits(x->p)) <= 0)
 719                 goto err;
 720         if (!print(bp,"prime:",x->p,m,4)) goto err;
 721         if (!print(bp,"generator:",x->g,m,4)) goto err;
 722         if (x->length != 0)
 723                 {
 724                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 725                         (int)x->length) <= 0) goto err;
 726                 }
 727         ret=1;
 728         if (0)
 729                 {
 730 err:
 731                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 732                 }
 733         if (m != NULL) OPENSSL_free(m);
 734         return(ret);
 735         }
 736 #endif
 737
 738 #ifndef OPENSSL_NO_DSA
 739 #ifndef OPENSSL_NO_FP_API
 740 int DSAparams_print_fp(FILE *fp, const DSA *x)
 741         {
 742         BIO *b;
 743         int ret;
 744
 745         if ((b=BIO_new(BIO_s_file())) == NULL)
 746                 {
 747                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 748                 return(0);
 749                 }
 750         BIO_set_fp(b,fp,BIO_NOCLOSE);
 751         ret=DSAparams_print(b, x);
 752         BIO_free(b);
 753         return(ret);
 754         }
 755 #endif
 756
 757 int DSAparams_print(BIO *bp, const DSA *x)
 758         {
 759         unsigned char *m=NULL;
 760         int ret=0;
 761         size_t buf_len=0,i;
 762
 763         if (x->p)
 764                 buf_len = (size_t)BN_num_bytes(x->p);
 765         else
 766                 {
 767                 DSAerr(DSA_F_DSAPARAMS_PRINT,DSA_R_MISSING_PARAMETERS);
 768                 goto err;
 769                 }
 770         if (x->q)
 771                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 772                         buf_len = i;
 773         if (x->g)
 774                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 775                         buf_len = i;
 776         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 777         if (m == NULL)
 778                 {
 779                 DSAerr(DSA_F_DSAPARAMS_PRINT,ERR_R_MALLOC_FAILURE);
 780                 goto err;
 781                 }
 782
 783         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 784                 BN_num_bits(x->p)) <= 0)
 785                 goto err;
 786         if (!print(bp,"p:",x->p,m,4)) goto err;
 787         if ((x->q != NULL) && !print(bp,"q:",x->q,m,4)) goto err;
 788         if ((x->g != NULL) && !print(bp,"g:",x->g,m,4)) goto err;
 789         ret=1;
 790 err:
 791         if (m != NULL) OPENSSL_free(m);
 792         return(ret);
 793         }
 794
 795 #endif /* !OPENSSL_NO_DSA */
 796
 797 #ifndef OPENSSL_NO_EC
 798 #ifndef OPENSSL_NO_FP_API
 799 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
 800         {
 801         BIO *b;
 802         int ret;
 803
 804         if ((b=BIO_new(BIO_s_file())) == NULL)
 805                 {
 806                 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
 807                 return(0);
 808                 }
 809         BIO_set_fp(b, fp, BIO_NOCLOSE);
 810         ret = ECParameters_print(b, x);
 811         BIO_free(b);
 812         return(ret);
 813         }
 814 #endif
 815
 816 int ECParameters_print(BIO *bp, const EC_KEY *x)
 817         {
 818         int     reason=ERR_R_EC_LIB, ret=0;
 819         BIGNUM  *order=NULL;
 820         const EC_GROUP *group;
 821
 822         if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
 823                 {
 824                 reason = ERR_R_PASSED_NULL_PARAMETER;;
 825                 goto err;
 826                 }
 827
 828         if ((order = BN_new()) == NULL)
 829                 {
 830                 reason = ERR_R_MALLOC_FAILURE;
 831                 goto err;
 832                 }
 833
 834         if (!EC_GROUP_get_order(group, order, NULL))
 835                 {
 836                 reason = ERR_R_EC_LIB;
 837                 goto err;
 838                 }
 839
 840         if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
 841                 BN_num_bits(order)) <= 0)
 842                 goto err;
 843         if (!ECPKParameters_print(bp, group, 4))
 844                 goto err;
 845         ret=1;
 846 err:
 847         if (order)
 848                 BN_free(order);
 849         ECerr(EC_F_ECPARAMETERS_PRINT, reason);
 850         return(ret);
 851         }
 852
 853 #endif