crypto/openssl-0.9.7d/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 #include <stdio.h>
  60 #include "cryptlib.h"
  61 #include <openssl/buffer.h>
  62 #include <openssl/bn.h>
  63 #ifndef OPENSSL_NO_RSA
  64 #include <openssl/rsa.h>
  65 #endif
  66 #ifndef OPENSSL_NO_DH
  67 #include <openssl/dh.h>
  68 #endif
  69 #ifndef OPENSSL_NO_DSA
  70 #include <openssl/dsa.h>
  71 #endif
  72
  73 static int print(BIO *fp,const char *str,BIGNUM *num,
  74                 unsigned char *buf,int off);
  75 #ifndef OPENSSL_NO_RSA
  76 #ifndef OPENSSL_NO_FP_API
  77 int RSA_print_fp(FILE *fp, const RSA *x, int off)
  78         {
  79         BIO *b;
  80         int ret;
  81
  82         if ((b=BIO_new(BIO_s_file())) == NULL)
  83                 {
  84                 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
  85                 return(0);
  86                 }
  87         BIO_set_fp(b,fp,BIO_NOCLOSE);
  88         ret=RSA_print(b,x,off);
  89         BIO_free(b);
  90         return(ret);
  91         }
  92 #endif
  93
  94 int RSA_print(BIO *bp, const RSA *x, int off)
  95         {
  96         char str[128];
  97         const char *s;
  98         unsigned char *m=NULL;
  99         int ret=0;
 100         size_t buf_len=0, i;
 101
 102         if (x->n)
 103                 buf_len = (size_t)BN_num_bytes(x->n);
 104         if (x->e)
 105                 if (buf_len < (i = (size_t)BN_num_bytes(x->e)))
 106                         buf_len = i;
 107         if (x->d)
 108                 if (buf_len < (i = (size_t)BN_num_bytes(x->d)))
 109                         buf_len = i;
 110         if (x->p)
 111                 if (buf_len < (i = (size_t)BN_num_bytes(x->p)))
 112                         buf_len = i;
 113         if (x->q)
 114                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 115                         buf_len = i;
 116         if (x->dmp1)
 117                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmp1)))
 118                         buf_len = i;
 119         if (x->dmq1)
 120                 if (buf_len < (i = (size_t)BN_num_bytes(x->dmq1)))
 121                         buf_len = i;
 122         if (x->iqmp)
 123                 if (buf_len < (i = (size_t)BN_num_bytes(x->iqmp)))
 124                         buf_len = i;
 125
 126         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 127         if (m == NULL)
 128                 {
 129                 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
 130                 goto err;
 131                 }
 132
 133         if (x->d != NULL)
 134                 {
 135                 if(!BIO_indent(bp,off,128))
 136                    goto err;
 137                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
 138                         <= 0) goto err;
 139                 }
 140
 141         if (x->d == NULL)
 142                 BIO_snprintf(str,sizeof str,"Modulus (%d bit):",BN_num_bits(x->n));
 143         else
 144                 BUF_strlcpy(str,"modulus:",sizeof str);
 145         if (!print(bp,str,x->n,m,off)) goto err;
 146         s=(x->d == NULL)?"Exponent:":"publicExponent:";
 147         if (!print(bp,s,x->e,m,off)) goto err;
 148         if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
 149         if (!print(bp,"prime1:",x->p,m,off)) goto err;
 150         if (!print(bp,"prime2:",x->q,m,off)) goto err;
 151         if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
 152         if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
 153         if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
 154         ret=1;
 155 err:
 156         if (m != NULL) OPENSSL_free(m);
 157         return(ret);
 158         }
 159 #endif /* OPENSSL_NO_RSA */
 160
 161 #ifndef OPENSSL_NO_DSA
 162 #ifndef OPENSSL_NO_FP_API
 163 int DSA_print_fp(FILE *fp, const DSA *x, int off)
 164         {
 165         BIO *b;
 166         int ret;
 167
 168         if ((b=BIO_new(BIO_s_file())) == NULL)
 169                 {
 170                 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
 171                 return(0);
 172                 }
 173         BIO_set_fp(b,fp,BIO_NOCLOSE);
 174         ret=DSA_print(b,x,off);
 175         BIO_free(b);
 176         return(ret);
 177         }
 178 #endif
 179
 180 int DSA_print(BIO *bp, const DSA *x, int off)
 181         {
 182         unsigned char *m=NULL;
 183         int ret=0;
 184         size_t buf_len=0,i;
 185
 186         if (x->p)
 187                 buf_len = (size_t)BN_num_bytes(x->p);
 188         if (x->q)
 189                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 190                         buf_len = i;
 191         if (x->g)
 192                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 193                         buf_len = i;
 194         if (x->priv_key)
 195                 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
 196                         buf_len = i;
 197         if (x->pub_key)
 198                 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
 199                         buf_len = i;
 200
 201         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 202         if (m == NULL)
 203                 {
 204                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 205                 goto err;
 206                 }
 207
 208         if (x->priv_key != NULL)
 209                 {
 210                 if(!BIO_indent(bp,off,128))
 211                    goto err;
 212                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 213                         <= 0) goto err;
 214                 }
 215
 216         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 217                 goto err;
 218         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 219                 goto err;
 220         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 221         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 222         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 223         ret=1;
 224 err:
 225         if (m != NULL) OPENSSL_free(m);
 226         return(ret);
 227         }
 228 #endif /* !OPENSSL_NO_DSA */
 229
 230 static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
 231              int off)
 232         {
 233         int n,i;
 234         const char *neg;
 235
 236         if (num == NULL) return(1);
 237         neg=(num->neg)?"-":"";
 238         if(!BIO_indent(bp,off,128))
 239                 return 0;
 240
 241         if (BN_num_bytes(num) <= BN_BYTES)
 242                 {
 243                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 244                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 245                         <= 0) return(0);
 246                 }
 247         else
 248                 {
 249                 buf[0]=0;
 250                 if (BIO_printf(bp,"%s%s",number,
 251                         (neg[0] == '-')?" (Negative)":"") <= 0)
 252                         return(0);
 253                 n=BN_bn2bin(num,&buf[1]);
 254
 255                 if (buf[1] & 0x80)
 256                         n++;
 257                 else    buf++;
 258
 259                 for (i=0; i<n; i++)
 260                         {
 261                         if ((i%15) == 0)
 262                                 {
 263                                 if(BIO_puts(bp,"\n") <= 0
 264                                    || !BIO_indent(bp,off+4,128))
 265                                     return 0;
 266                                 }
 267                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 268                                 <= 0) return(0);
 269                         }
 270                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 271                 }
 272         return(1);
 273         }
 274
 275 #ifndef OPENSSL_NO_DH
 276 #ifndef OPENSSL_NO_FP_API
 277 int DHparams_print_fp(FILE *fp, const DH *x)
 278         {
 279         BIO *b;
 280         int ret;
 281
 282         if ((b=BIO_new(BIO_s_file())) == NULL)
 283                 {
 284                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 285                 return(0);
 286                 }
 287         BIO_set_fp(b,fp,BIO_NOCLOSE);
 288         ret=DHparams_print(b, x);
 289         BIO_free(b);
 290         return(ret);
 291         }
 292 #endif
 293
 294 int DHparams_print(BIO *bp, const DH *x)
 295         {
 296         unsigned char *m=NULL;
 297         int reason=ERR_R_BUF_LIB,ret=0;
 298         size_t buf_len=0, i;
 299
 300         if (x->p)
 301                 buf_len = (size_t)BN_num_bytes(x->p);
 302         if (x->g)
 303                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 304                         buf_len = i;
 305         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 306         if (m == NULL)
 307                 {
 308                 reason=ERR_R_MALLOC_FAILURE;
 309                 goto err;
 310                 }
 311
 312         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 313                 BN_num_bits(x->p)) <= 0)
 314                 goto err;
 315         if (!print(bp,"prime:",x->p,m,4)) goto err;
 316         if (!print(bp,"generator:",x->g,m,4)) goto err;
 317         if (x->length != 0)
 318                 {
 319                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 320                         (int)x->length) <= 0) goto err;
 321                 }
 322         ret=1;
 323         if (0)
 324                 {
 325 err:
 326                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 327                 }
 328         if (m != NULL) OPENSSL_free(m);
 329         return(ret);
 330         }
 331 #endif
 332
 333 #ifndef OPENSSL_NO_DSA
 334 #ifndef OPENSSL_NO_FP_API
 335 int DSAparams_print_fp(FILE *fp, const DSA *x)
 336         {
 337         BIO *b;
 338         int ret;
 339
 340         if ((b=BIO_new(BIO_s_file())) == NULL)
 341                 {
 342                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 343                 return(0);
 344                 }
 345         BIO_set_fp(b,fp,BIO_NOCLOSE);
 346         ret=DSAparams_print(b, x);
 347         BIO_free(b);
 348         return(ret);
 349         }
 350 #endif
 351
 352 int DSAparams_print(BIO *bp, const DSA *x)
 353         {
 354         unsigned char *m=NULL;
 355         int reason=ERR_R_BUF_LIB,ret=0;
 356         size_t buf_len=0,i;
 357
 358         if (x->p)
 359                 buf_len = (size_t)BN_num_bytes(x->p);
 360         if (x->q)
 361                 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
 362                         buf_len = i;
 363         if (x->g)
 364                 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
 365                         buf_len = i;
 366         m=(unsigned char *)OPENSSL_malloc(buf_len+10);
 367         if (m == NULL)
 368                 {
 369                 reason=ERR_R_MALLOC_FAILURE;
 370                 goto err;
 371                 }
 372
 373         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 374                 BN_num_bits(x->p)) <= 0)
 375                 goto err;
 376         if (!print(bp,"p:",x->p,m,4)) goto err;
 377         if (!print(bp,"q:",x->q,m,4)) goto err;
 378         if (!print(bp,"g:",x->g,m,4)) goto err;
 379         ret=1;
 380 err:
 381         if (m != NULL) OPENSSL_free(m);
 382         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 383         return(ret);
 384         }
 385
 386 #endif /* !OPENSSL_NO_DSA */
 387