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 NO_RSA
  64 #include <openssl/rsa.h>
  65 #endif
  66 #ifndef NO_DH
  67 #include <openssl/dh.h>
  68 #endif
  69 #ifndef 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 NO_RSA
  76 #ifndef NO_FP_API
  77 int RSA_print_fp(FILE *fp, 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, RSA *x, int off)
  95         {
  96         char str[128];
  97         const char *s;
  98         unsigned char *m=NULL;
  99         int i,ret=0;
 100
 101         i=RSA_size(x);
 102         m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
 103         if (m == NULL)
 104                 {
 105                 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
 106                 goto err;
 107                 }
 108
 109         if (off)
 110                 {
 111                 if (off > 128) off=128;
 112                 memset(str,' ',off);
 113                 }
 114         if (x->d != NULL)
 115                 {
 116                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 117                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
 118                         <= 0) goto err;
 119                 }
 120
 121         if (x->d == NULL)
 122                 sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
 123         else
 124                 strcpy(str,"modulus:");
 125         if (!print(bp,str,x->n,m,off)) goto err;
 126         s=(x->d == NULL)?"Exponent:":"publicExponent:";
 127         if (!print(bp,s,x->e,m,off)) goto err;
 128         if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
 129         if (!print(bp,"prime1:",x->p,m,off)) goto err;
 130         if (!print(bp,"prime2:",x->q,m,off)) goto err;
 131         if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
 132         if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
 133         if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
 134         ret=1;
 135 err:
 136         if (m != NULL) OPENSSL_free(m);
 137         return(ret);
 138         }
 139 #endif /* NO_RSA */
 140
 141 #ifndef NO_DSA
 142 #ifndef NO_FP_API
 143 int DSA_print_fp(FILE *fp, DSA *x, int off)
 144         {
 145         BIO *b;
 146         int ret;
 147
 148         if ((b=BIO_new(BIO_s_file())) == NULL)
 149                 {
 150                 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
 151                 return(0);
 152                 }
 153         BIO_set_fp(b,fp,BIO_NOCLOSE);
 154         ret=DSA_print(b,x,off);
 155         BIO_free(b);
 156         return(ret);
 157         }
 158 #endif
 159
 160 int DSA_print(BIO *bp, DSA *x, int off)
 161         {
 162         char str[128];
 163         unsigned char *m=NULL;
 164         int i,ret=0;
 165         BIGNUM *bn=NULL;
 166
 167         if (x->p != NULL)
 168                 bn=x->p;
 169         else if (x->priv_key != NULL)
 170                 bn=x->priv_key;
 171         else if (x->pub_key != NULL)
 172                 bn=x->pub_key;
 173
 174         /* larger than needed but what the hell :-) */
 175         if (bn != NULL)
 176                 i=BN_num_bytes(bn)*2;
 177         else
 178                 i=256;
 179         m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
 180         if (m == NULL)
 181                 {
 182                 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
 183                 goto err;
 184                 }
 185
 186         if (off)
 187                 {
 188                 if (off > 128) off=128;
 189                 memset(str,' ',off);
 190                 }
 191         if (x->priv_key != NULL)
 192                 {
 193                 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
 194                 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
 195                         <= 0) goto err;
 196                 }
 197
 198         if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
 199                 goto err;
 200         if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
 201                 goto err;
 202         if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
 203         if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
 204         if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
 205         ret=1;
 206 err:
 207         if (m != NULL) OPENSSL_free(m);
 208         return(ret);
 209         }
 210 #endif /* !NO_DSA */
 211
 212 static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
 213              int off)
 214         {
 215         int n,i;
 216         char str[128];
 217         const char *neg;
 218
 219         if (num == NULL) return(1);
 220         neg=(num->neg)?"-":"";
 221         if (off)
 222                 {
 223                 if (off > 128) off=128;
 224                 memset(str,' ',off);
 225                 if (BIO_write(bp,str,off) <= 0) return(0);
 226                 }
 227
 228         if (BN_num_bytes(num) <= BN_BYTES)
 229                 {
 230                 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
 231                         (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
 232                         <= 0) return(0);
 233                 }
 234         else
 235                 {
 236                 buf[0]=0;
 237                 if (BIO_printf(bp,"%s%s",number,
 238                         (neg[0] == '-')?" (Negative)":"") <= 0)
 239                         return(0);
 240                 n=BN_bn2bin(num,&buf[1]);
 241
 242                 if (buf[1] & 0x80)
 243                         n++;
 244                 else    buf++;
 245
 246                 for (i=0; i<n; i++)
 247                         {
 248                         if ((i%15) == 0)
 249                                 {
 250                                 str[0]='\n';
 251                                 memset(&(str[1]),' ',off+4);
 252                                 if (BIO_write(bp,str,off+1+4) <= 0) return(0);
 253                                 }
 254                         if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
 255                                 <= 0) return(0);
 256                         }
 257                 if (BIO_write(bp,"\n",1) <= 0) return(0);
 258                 }
 259         return(1);
 260         }
 261
 262 #ifndef NO_DH
 263 #ifndef NO_FP_API
 264 int DHparams_print_fp(FILE *fp, DH *x)
 265         {
 266         BIO *b;
 267         int ret;
 268
 269         if ((b=BIO_new(BIO_s_file())) == NULL)
 270                 {
 271                 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 272                 return(0);
 273                 }
 274         BIO_set_fp(b,fp,BIO_NOCLOSE);
 275         ret=DHparams_print(b, x);
 276         BIO_free(b);
 277         return(ret);
 278         }
 279 #endif
 280
 281 int DHparams_print(BIO *bp, DH *x)
 282         {
 283         unsigned char *m=NULL;
 284         int reason=ERR_R_BUF_LIB,i,ret=0;
 285
 286         i=BN_num_bytes(x->p);
 287         m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
 288         if (m == NULL)
 289                 {
 290                 reason=ERR_R_MALLOC_FAILURE;
 291                 goto err;
 292                 }
 293
 294         if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
 295                 BN_num_bits(x->p)) <= 0)
 296                 goto err;
 297         if (!print(bp,"prime:",x->p,m,4)) goto err;
 298         if (!print(bp,"generator:",x->g,m,4)) goto err;
 299         if (x->length != 0)
 300                 {
 301                 if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
 302                         (int)x->length) <= 0) goto err;
 303                 }
 304         ret=1;
 305         if (0)
 306                 {
 307 err:
 308                 DHerr(DH_F_DHPARAMS_PRINT,reason);
 309                 }
 310         if (m != NULL) OPENSSL_free(m);
 311         return(ret);
 312         }
 313 #endif
 314
 315 #ifndef NO_DSA
 316 #ifndef NO_FP_API
 317 int DSAparams_print_fp(FILE *fp, DSA *x)
 318         {
 319         BIO *b;
 320         int ret;
 321
 322         if ((b=BIO_new(BIO_s_file())) == NULL)
 323                 {
 324                 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
 325                 return(0);
 326                 }
 327         BIO_set_fp(b,fp,BIO_NOCLOSE);
 328         ret=DSAparams_print(b, x);
 329         BIO_free(b);
 330         return(ret);
 331         }
 332 #endif
 333
 334 int DSAparams_print(BIO *bp, DSA *x)
 335         {
 336         unsigned char *m=NULL;
 337         int reason=ERR_R_BUF_LIB,i,ret=0;
 338
 339         i=BN_num_bytes(x->p);
 340         m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
 341         if (m == NULL)
 342                 {
 343                 reason=ERR_R_MALLOC_FAILURE;
 344                 goto err;
 345                 }
 346
 347         if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
 348                 BN_num_bits(x->p)) <= 0)
 349                 goto err;
 350         if (!print(bp,"p:",x->p,m,4)) goto err;
 351         if (!print(bp,"q:",x->q,m,4)) goto err;
 352         if (!print(bp,"g:",x->g,m,4)) goto err;
 353         ret=1;
 354 err:
 355         if (m != NULL) OPENSSL_free(m);
 356         DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
 357         return(ret);
 358         }
 359
 360 #endif /* !NO_DSA */
 361