crypto/asn1/t_pkey.c

   1 /* crypto/asn1/t_pkey.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  60  * Binary polynomial ECC support in OpenSSL originally developed by
  61  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
  62  */
  63
  64 #include <stdio.h>
  65 #include "cryptlib.h"
  66 #include <openssl/objects.h>
  67 #include <openssl/buffer.h>
  68 #include <openssl/bn.h>
  69 #ifndef OPENSSL_NO_RSA
  70 #include <openssl/rsa.h>
  71 #endif
  72 #ifndef OPENSSL_NO_DH
  73 #include <openssl/dh.h>
  74 #endif
  75 #ifndef OPENSSL_NO_DSA
  76 #include <openssl/dsa.h>
  77 #endif
  78 #ifndef OPENSSL_NO_EC
  79 #include <openssl/ec.h>
  80 #endif
  81
  82 static int print(BIO *fp,const char *str,BIGNUM *num,
  83                 unsigned char *buf,int off);
  84 static int print_bin(BIO *fp, const char *str, const unsigned char *num,
  85                 size_t len, int off);
  86 #ifndef OPENSSL_NO_RSA
  87 #ifndef OPENSSL_NO_FP_API
  88 int RSA_print_fp(FILE *fp, const RSA *x, int off)
  89         {
  90         BIO *b;
  91         int ret;
  92
  93         if ((b=BIO_new(BIO_s_file())) == NULL)
  94                 {
  95                 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
  96                 return(0);
  97                 }
  98         BIO_set_fp(b,fp,BIO_NOCLOSE);
  99         ret=RSA_print(b,x,off);
 100         BIO_free(b);
 101         return(ret);
 102         }
 103 #endif
 104
 105 int RSA_print(BIO *bp, const RSA *x, int off)
 106         {
 107         char str[128];
 108         const char *s;
 109         unsigned char *m=NULL;
 110         int ret=0;
 111         size_t buf_len=0, i;
 112
 113         if (x->n)
 114                 buf_len = (size_t)BN_num_bytes(x->n);
 115         if (x->e)
 116                 if (buf_len < (i = (size_t)BN_num_bytes(x->e)))
 117                         buf_len = i;
 118         if (x->d)
 119                 if (buf_len < (i = (size_t)BN_num_bytes(x->d)))
 120                         buf_len = i;
 121         if (x->p)
 122                 if (buf_len < (i = (size_t)BN_num_bytes(x->p)))
 123                         buf_len = i;
 124         if (x->q)
 125                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 126                         buf_len = i;
 127         if (x->dmp1)
 128                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmp1)))
 129                         buf_len = i;
 130         if (x->dmq1)
 131                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmq1)))
 132                         buf_len = i;
 133         if (x->iqmp)
 134                 if (buf_len < (i = (size_t)BN_num_bytes(x->iqmp)))
 135                         buf_len = i;
 136
 137         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 138         if (m == NULL)
 139                 {
 140                 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
 141                 goto err;
 142                 }
 143
 144         if (x->d != NULL)
 145                 {
 146                 if(!BIO_indent(bp,off,128))
 147                    goto err;
 148                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
 149                         <= 0) goto err;
 150                 }
 151
 152         if (x->d == NULL)
 153                 sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
 154         else
 155                 strcpy(str,"modulus:");
 156         if (!print(bp,str,x->n,m,off)) goto err;
 157         s=(x->d == NULL)?"Exponent:":"publicExponent:";
 158         if (!print(bp,s,x->e,m,off)) goto err;
 159         if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
 160         if (!print(bp,"prime1:",x->p,m,off)) goto err;
 161         if (!print(bp,"prime2:",x->q,m,off)) goto err;
 162         if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
 163         if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
 164         if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
 165         ret=1;
 166 err:
 167         if (m != NULL) OPENSSL_free(m);
 168         return(ret);
 169         }
 170 #endif /* OPENSSL_NO_RSA */
 171
 172 #ifndef OPENSSL_NO_DSA
 173 #ifndef OPENSSL_NO_FP_API
 174 int DSA_print_fp(FILE *fp, const DSA *x, int off)
 175         {
 176         BIO *b;
 177         int ret;
 178
 179         if ((b=BIO_new(BIO_s_file())) == NULL)
 180                 {
 181                 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
 182                 return(0);
 183                 }
 184         BIO_set_fp(b,fp,BIO_NOCLOSE);
 185         ret=DSA_print(b,x,off);
 186         BIO_free(b);
 187         return(ret);
 188         }
 189 #endif
 190
 191 int DSA_print(BIO *bp, const DSA *x, int off)
 192         {
 193         unsigned char *m=NULL;
 194         int ret=0;
 195         size_t buf_len=0,i;
 196
 197         if (x->p)
 198                 buf_len = (size_t)BN_num_bytes(x->p);
 199         if (x->q)
 200                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 201                         buf_len = i;
 202         if (x->g)
 203                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 204                         buf_len = i;
 205         if (x->priv_key)
 206                 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
 207                         buf_len = i;
 208         if (x->pub_key)
 209                 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
 210                         buf_len = i;
 211
 212         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 213         if (m == NULL)
 214                 {
 215                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 216                 goto err;
 217                 }
 218
 219         if (x->priv_key != NULL)
 220                 {
 221                 if(!BIO_indent(bp,off,128))
 222                    goto err;
 223                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 224                         <= 0) goto err;
 225                 }
 226
 227         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 228                 goto err;
 229         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 230                 goto err;
 231         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 232         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 233         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 234         ret=1;
 235 err:
 236         if (m != NULL) OPENSSL_free(m);
 237         return(ret);
 238         }
 239 #endif /* !OPENSSL_NO_DSA */
 240
 241 #ifndef OPENSSL_NO_EC
 242 #ifndef OPENSSL_NO_FP_API
 243 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
 244         {
 245         BIO *b;
 246         int ret;
 247
 248         if ((b=BIO_new(BIO_s_file())) == NULL)
 249                 {
 250                 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB);
 251                 return(0);
 252                 }
 253         BIO_set_fp(b, fp, BIO_NOCLOSE);
 254         ret = ECPKParameters_print(b, x, off);
 255         BIO_free(b);
 256         return(ret);
 257         }
 258
 259 int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
 260         {
 261         BIO *b;
 262         int ret;
 263
 264         if ((b=BIO_new(BIO_s_file())) == NULL)
 265                 {
 266                 ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
 267                 return(0);
 268                 }
 269         BIO_set_fp(b, fp, BIO_NOCLOSE);
 270         ret = EC_KEY_print(b, x, off);
 271         BIO_free(b);
 272         return(ret);
 273         }
 274 #endif
 275
 276 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
 277         {
 278         char str[128];
 279         unsigned char *buffer=NULL;
 280         size_t  buf_len=0, i;
 281         int     ret=0, reason=ERR_R_BIO_LIB;
 282         BN_CTX  *ctx=NULL;
 283         EC_POINT *point=NULL;
 284         BIGNUM  *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
 285                 *order=NULL, *cofactor=NULL;
 286         const unsigned char *seed;
 287         size_t  seed_len=0;
 288
 289         static const char *gen_compressed = "Generator (compressed):";
 290         static const char *gen_uncompressed = "Generator (uncompressed):";
 291         static const char *gen_hybrid = "Generator (hybrid):";
 292
 293         if (!x)
 294                 {
 295                 reason = ERR_R_PASSED_NULL_PARAMETER;
 296                 goto err;
 297                 }
 298
 299         if (EC_GROUP_get_asn1_flag(x))
 300                 {
 301                 /* the curve parameter are given by an asn1 OID */
 302                 int nid;
 303
 304                 if (off)
 305                         {
 306                         if (off > 128)
 307                                 off=128;
 308                         memset(str, ' ', off);
 309                         if (BIO_write(bp, str, off) <= 0)
 310                                 goto err;
 311                         }
 312
 313                 nid = EC_GROUP_get_nid(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                 if (off)
 400                         {
 401                         if (off > 128) off=128;
 402                         memset(str,' ',off);
 403                         if (BIO_write(bp, str, off) <= 0)
 404                                 goto err;
 405                         }
 406                 /* print the 'short name' of the field type */
 407                 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
 408                         <= 0)
 409                         goto err;
 410
 411                 if (is_char_two)
 412                         {
 413                         /* print the 'short name' of the base type OID */
 414                         int basis_type = EC_GROUP_get_basis_type(x);
 415                         if (basis_type == 0)
 416                                 goto err;
 417
 418                         if (off)
 419                                 {
 420                                 if (off > 128) off=128;
 421                                 memset(str,' ',off);
 422                                 if (BIO_write(bp, str, off) <= 0)
 423                                         goto err;
 424                                 }
 425
 426                         if (BIO_printf(bp, "Basis Type: %s\n",
 427                                 OBJ_nid2sn(basis_type)) <= 0)
 428                                 goto err;
 429
 430                         /* print the polynomial */
 431                         if ((p != NULL) && !print(bp, "Polynomial:", p, buffer,
 432                                 off))
 433                                 goto err;
 434                         }
 435                 else
 436                         {
 437                         if ((p != NULL) && !print(bp, "Prime:", p, buffer,off))
 438                                 goto err;
 439                         }
 440                 if ((a != NULL) && !print(bp, "A:   ", a, buffer, off))
 441                         goto err;
 442                 if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
 443                         goto err;
 444                 if (form == POINT_CONVERSION_COMPRESSED)
 445                         {
 446                         if ((gen != NULL) && !print(bp, gen_compressed, gen,
 447                                 buffer, off))
 448                                 goto err;
 449                         }
 450                 else if (form == POINT_CONVERSION_UNCOMPRESSED)
 451                         {
 452                         if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
 453                                 buffer, off))
 454                                 goto err;
 455                         }
 456                 else /* form == POINT_CONVERSION_HYBRID */
 457                         {
 458                         if ((gen != NULL) && !print(bp, gen_hybrid, gen,
 459                                 buffer, off))
 460                                 goto err;
 461                         }
 462                 if ((order != NULL) && !print(bp, "Order: ", order,
 463                         buffer, off)) goto err;
 464                 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
 465                         buffer, off)) goto err;
 466                 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
 467                         goto err;
 468                 }
 469         ret=1;
 470 err:
 471         if (!ret)
 472                 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
 473         if (p)
 474                 BN_free(p);
 475         if (a)
 476                 BN_free(a);
 477         if (b)
 478                 BN_free(b);
 479         if (gen)
 480                 BN_free(gen);
 481         if (order)
 482                 BN_free(order);
 483         if (cofactor)
 484                 BN_free(cofactor);
 485         if (ctx)
 486                 BN_CTX_free(ctx);
 487         if (buffer != NULL)
 488                 OPENSSL_free(buffer);
 489         return(ret);
 490         }
 491
 492 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
 493         {
 494         char str[128];
 495         unsigned char *buffer=NULL;
 496         size_t  buf_len=0, i;
 497         int     ret=0, reason=ERR_R_BIO_LIB;
 498         BIGNUM  *pub_key=NULL;
 499         BN_CTX  *ctx=NULL;
 500
 501         if (!x || !x->group)
 502                 {
 503                 reason = ERR_R_PASSED_NULL_PARAMETER;
 504                 goto err;
 505                 }
 506
 507         if ((pub_key = EC_POINT_point2bn(x->group, x->pub_key,
 508                 x->conv_form, 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         if (x->priv_key)
 516                 {
 517                 if ((i = (size_t)BN_num_bytes(x->priv_key)) > buf_len)
 518                         buf_len = i;
 519                 }
 520
 521         buf_len += 10;
 522         if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
 523                 {
 524                 reason = ERR_R_MALLOC_FAILURE;
 525                 goto err;
 526                 }
 527         if (off)
 528                 {
 529                 if (off > 128) off=128;
 530                 memset(str,' ',off);
 531                 }
 532         if (x->priv_key != NULL)
 533                 {
 534                 if (off && (BIO_write(bp, str, off) <= 0)) goto err;
 535                 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
 536                         BN_num_bits(x->priv_key)) <= 0) goto err;
 537                 }
 538
 539         if ((x->priv_key != NULL) && !print(bp, "priv:", x->priv_key,
 540                 buffer, off))
 541                 goto err;
 542         if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
 543                 buffer, off))
 544                 goto err;
 545         if (!ECPKParameters_print(bp, x->group, off))
 546                 goto err;
 547         ret=1;
 548 err:
 549         if (!ret)
 550                 ECerr(EC_F_EC_KEY_PRINT, reason);
 551         if (pub_key)
 552                 BN_free(pub_key);
 553         if (ctx)
 554                 BN_CTX_free(ctx);
 555         if (buffer != NULL)
 556                 OPENSSL_free(buffer);
 557         return(ret);
 558         }
 559 #endif /* OPENSSL_NO_EC */
 560
 561 static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
 562              int off)
 563         {
 564         int n,i;
 565         const char *neg;
 566
 567         if (num == NULL) return(1);
 568         neg = (BN_get_sign(num))?"-":"";
 569         if(!BIO_indent(bp,off,128))
 570                 return 0;
 571         if (BN_is_zero(num))
 572                 {
 573                 if (BIO_printf(bp, "%s 0\n", number) <= 0)
 574                         return 0;
 575                 return 1;
 576                 }
 577
 578         if (BN_num_bytes(num) <= BN_BYTES)
 579                 {
 580                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 581                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 582                         <= 0) return(0);
 583                 }
 584         else
 585                 {
 586                 buf[0]=0;
 587                 if (BIO_printf(bp,"%s%s",number,
 588                         (neg[0] == '-')?" (Negative)":"") <= 0)
 589                         return(0);
 590                 n=BN_bn2bin(num,&buf[1]);
 591
 592                 if (buf[1] & 0x80)
 593                         n++;
 594                 else    buf++;
 595
 596                 for (i=0; i<n; i++)
 597                         {
 598                         if ((i%15) == 0)
 599                                 {
 600                                 if(BIO_puts(bp,"\n") <= 0
 601                                    || !BIO_indent(bp,off+4,128))
 602                                     return 0;
 603                                 }
 604                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 605                                 <= 0) return(0);
 606                         }
 607                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 608                 }
 609         return(1);
 610         }
 611
 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
 650 #ifndef OPENSSL_NO_DH
 651 #ifndef OPENSSL_NO_FP_API
 652 int DHparams_print_fp(FILE *fp, const DH *x)
 653         {
 654         BIO *b;
 655         int ret;
 656
 657         if ((b=BIO_new(BIO_s_file())) == NULL)
 658                 {
 659                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 660                 return(0);
 661                 }
 662         BIO_set_fp(b,fp,BIO_NOCLOSE);
 663         ret=DHparams_print(b, x);
 664         BIO_free(b);
 665         return(ret);
 666         }
 667 #endif
 668
 669 int DHparams_print(BIO *bp, const DH *x)
 670         {
 671         unsigned char *m=NULL;
 672         int reason=ERR_R_BUF_LIB,ret=0;
 673         size_t buf_len=0, i;
 674
 675         if (x->p)
 676                 buf_len = (size_t)BN_num_bytes(x->p);
 677         if (x->g)
 678                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 679                         buf_len = i;
 680         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 681         if (m == NULL)
 682                 {
 683                 reason=ERR_R_MALLOC_FAILURE;
 684                 goto err;
 685                 }
 686
 687         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 688                 BN_num_bits(x->p)) <= 0)
 689                 goto err;
 690         if (!print(bp,"prime:",x->p,m,4)) goto err;
 691         if (!print(bp,"generator:",x->g,m,4)) goto err;
 692         if (x->length != 0)
 693                 {
 694                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 695                         (int)x->length) <= 0) goto err;
 696                 }
 697         ret=1;
 698         if (0)
 699                 {
 700 err:
 701                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 702                 }
 703         if (m != NULL) OPENSSL_free(m);
 704         return(ret);
 705         }
 706 #endif
 707
 708 #ifndef OPENSSL_NO_DSA
 709 #ifndef OPENSSL_NO_FP_API
 710 int DSAparams_print_fp(FILE *fp, const DSA *x)
 711         {
 712         BIO *b;
 713         int ret;
 714
 715         if ((b=BIO_new(BIO_s_file())) == NULL)
 716                 {
 717                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 718                 return(0);
 719                 }
 720         BIO_set_fp(b,fp,BIO_NOCLOSE);
 721         ret=DSAparams_print(b, x);
 722         BIO_free(b);
 723         return(ret);
 724         }
 725 #endif
 726
 727 int DSAparams_print(BIO *bp, const DSA *x)
 728         {
 729         unsigned char *m=NULL;
 730         int reason=ERR_R_BUF_LIB,ret=0;
 731         size_t buf_len=0,i;
 732
 733         if (x->p)
 734                 buf_len = (size_t)BN_num_bytes(x->p);
 735         if (x->q)
 736                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 737                         buf_len = i;
 738         if (x->g)
 739                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 740                         buf_len = i;
 741         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 742         if (m == NULL)
 743                 {
 744                 reason=ERR_R_MALLOC_FAILURE;
 745                 goto err;
 746                 }
 747
 748         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 749                 BN_num_bits(x->p)) <= 0)
 750                 goto err;
 751         if (!print(bp,"p:",x->p,m,4)) goto err;
 752         if (!print(bp,"q:",x->q,m,4)) goto err;
 753         if (!print(bp,"g:",x->g,m,4)) goto err;
 754         ret=1;
 755 err:
 756         if (m != NULL) OPENSSL_free(m);
 757         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 758         return(ret);
 759         }
 760
 761 #endif /* !OPENSSL_NO_DSA */
 762
 763 #ifndef OPENSSL_NO_EC
 764 #ifndef OPENSSL_NO_FP_API
 765 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
 766         {
 767         BIO *b;
 768         int ret;
 769
 770         if ((b=BIO_new(BIO_s_file())) == NULL)
 771                 {
 772                 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
 773                 return(0);
 774                 }
 775         BIO_set_fp(b, fp, BIO_NOCLOSE);
 776         ret = ECParameters_print(b, x);
 777         BIO_free(b);
 778         return(ret);
 779         }
 780 #endif
 781
 782 int ECParameters_print(BIO *bp, const EC_KEY *x)
 783         {
 784         int     reason=ERR_R_EC_LIB, ret=0;
 785         BIGNUM  *order=NULL;
 786
 787         if (!x || !x->group)
 788                 {
 789                 reason = ERR_R_PASSED_NULL_PARAMETER;;
 790                 goto err;
 791                 }
 792
 793         if ((order = BN_new()) == NULL)
 794                 {
 795                 reason = ERR_R_MALLOC_FAILURE;
 796                 goto err;
 797                 }
 798
 799         if (!EC_GROUP_get_order(x->group, order, NULL))
 800                 {
 801                 reason = ERR_R_EC_LIB;
 802                 goto err;
 803                 }
 804
 805         if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
 806                 BN_num_bits(order)) <= 0)
 807                 goto err;
 808         if (!ECPKParameters_print(bp, x->group, 4))
 809                 goto err;
 810         ret=1;
 811 err:
 812         if (order)
 813                 BN_free(order);
 814         ECerr(EC_F_ECPARAMETERS_PRINT, reason);
 815         return(ret);
 816         }
 817
 818 #endif