release/src-rt-6.x.4708/router/openssl/crypto/pem/pem_all.c

   1 /* crypto/pem/pem_all.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 (c) 1998-2002 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include <stdio.h>
 113 #include "cryptlib.h"
 114 #include <openssl/bio.h>
 115 #include <openssl/evp.h>
 116 #include <openssl/x509.h>
 117 #include <openssl/pkcs7.h>
 118 #include <openssl/pem.h>
 119 #ifndef OPENSSL_NO_RSA
 120 # include <openssl/rsa.h>
 121 #endif
 122 #ifndef OPENSSL_NO_DSA
 123 # include <openssl/dsa.h>
 124 #endif
 125 #ifndef OPENSSL_NO_DH
 126 # include <openssl/dh.h>
 127 #endif
 128
 129 #ifndef OPENSSL_NO_RSA
 130 static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa);
 131 #endif
 132 #ifndef OPENSSL_NO_DSA
 133 static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa);
 134 #endif
 135
 136 #ifndef OPENSSL_NO_EC
 137 static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey);
 138 #endif
 139
 140 IMPLEMENT_PEM_rw(X509_REQ, X509_REQ, PEM_STRING_X509_REQ, X509_REQ)
 141
 142 IMPLEMENT_PEM_write(X509_REQ_NEW, X509_REQ, PEM_STRING_X509_REQ_OLD, X509_REQ)
 143 IMPLEMENT_PEM_rw(X509_CRL, X509_CRL, PEM_STRING_X509_CRL, X509_CRL)
 144 IMPLEMENT_PEM_rw(PKCS7, PKCS7, PEM_STRING_PKCS7, PKCS7)
 145
 146 IMPLEMENT_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE,
 147                  PEM_STRING_X509, NETSCAPE_CERT_SEQUENCE)
 148 #ifndef OPENSSL_NO_RSA
 149 /*
 150  * We treat RSA or DSA private keys as a special case. For private keys we
 151  * read in an EVP_PKEY structure with PEM_read_bio_PrivateKey() and extract
 152  * the relevant private key: this means can handle "traditional" and PKCS#8
 153  * formats transparently.
 154  */
 155 static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa)
 156 {
 157     RSA *rtmp;
 158     if (!key)
 159         return NULL;
 160     rtmp = EVP_PKEY_get1_RSA(key);
 161     EVP_PKEY_free(key);
 162     if (!rtmp)
 163         return NULL;
 164     if (rsa) {
 165         RSA_free(*rsa);
 166         *rsa = rtmp;
 167     }
 168     return rtmp;
 169 }
 170
 171 RSA *PEM_read_bio_RSAPrivateKey(BIO *bp, RSA **rsa, pem_password_cb *cb,
 172                                 void *u)
 173 {
 174     EVP_PKEY *pktmp;
 175     pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
 176     return pkey_get_rsa(pktmp, rsa);
 177 }
 178
 179 # ifndef OPENSSL_NO_FP_API
 180
 181 RSA *PEM_read_RSAPrivateKey(FILE *fp, RSA **rsa, pem_password_cb *cb, void *u)
 182 {
 183     EVP_PKEY *pktmp;
 184     pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
 185     return pkey_get_rsa(pktmp, rsa);
 186 }
 187
 188 # endif
 189
 190 # ifdef OPENSSL_FIPS
 191
 192 int PEM_write_bio_RSAPrivateKey(BIO *bp, RSA *x, const EVP_CIPHER *enc,
 193                                 unsigned char *kstr, int klen,
 194                                 pem_password_cb *cb, void *u)
 195 {
 196     if (FIPS_mode()) {
 197         EVP_PKEY *k;
 198         int ret;
 199         k = EVP_PKEY_new();
 200         if (!k)
 201             return 0;
 202         EVP_PKEY_set1_RSA(k, x);
 203
 204         ret = PEM_write_bio_PrivateKey(bp, k, enc, kstr, klen, cb, u);
 205         EVP_PKEY_free(k);
 206         return ret;
 207     } else
 208         return PEM_ASN1_write_bio((i2d_of_void *)i2d_RSAPrivateKey,
 209                                   PEM_STRING_RSA, bp, x, enc, kstr, klen, cb,
 210                                   u);
 211 }
 212
 213 #  ifndef OPENSSL_NO_FP_API
 214 int PEM_write_RSAPrivateKey(FILE *fp, RSA *x, const EVP_CIPHER *enc,
 215                             unsigned char *kstr, int klen,
 216                             pem_password_cb *cb, void *u)
 217 {
 218     if (FIPS_mode()) {
 219         EVP_PKEY *k;
 220         int ret;
 221         k = EVP_PKEY_new();
 222         if (!k)
 223             return 0;
 224
 225         EVP_PKEY_set1_RSA(k, x);
 226
 227         ret = PEM_write_PrivateKey(fp, k, enc, kstr, klen, cb, u);
 228         EVP_PKEY_free(k);
 229         return ret;
 230     } else
 231         return PEM_ASN1_write((i2d_of_void *)i2d_RSAPrivateKey,
 232                               PEM_STRING_RSA, fp, x, enc, kstr, klen, cb, u);
 233 }
 234 #  endif
 235
 236 # else
 237
 238 IMPLEMENT_PEM_write_cb_const(RSAPrivateKey, RSA, PEM_STRING_RSA,
 239                              RSAPrivateKey)
 240 # endif
 241 IMPLEMENT_PEM_rw_const(RSAPublicKey, RSA, PEM_STRING_RSA_PUBLIC,
 242                        RSAPublicKey) IMPLEMENT_PEM_rw(RSA_PUBKEY, RSA,
 243                                                       PEM_STRING_PUBLIC,
 244                                                       RSA_PUBKEY)
 245 #endif
 246 #ifndef OPENSSL_NO_DSA
 247 static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa)
 248 {
 249     DSA *dtmp;
 250     if (!key)
 251         return NULL;
 252     dtmp = EVP_PKEY_get1_DSA(key);
 253     EVP_PKEY_free(key);
 254     if (!dtmp)
 255         return NULL;
 256     if (dsa) {
 257         DSA_free(*dsa);
 258         *dsa = dtmp;
 259     }
 260     return dtmp;
 261 }
 262
 263 DSA *PEM_read_bio_DSAPrivateKey(BIO *bp, DSA **dsa, pem_password_cb *cb,
 264                                 void *u)
 265 {
 266     EVP_PKEY *pktmp;
 267     pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
 268     return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
 269 }
 270
 271 # ifdef OPENSSL_FIPS
 272
 273 int PEM_write_bio_DSAPrivateKey(BIO *bp, DSA *x, const EVP_CIPHER *enc,
 274                                 unsigned char *kstr, int klen,
 275                                 pem_password_cb *cb, void *u)
 276 {
 277     if (FIPS_mode()) {
 278         EVP_PKEY *k;
 279         int ret;
 280         k = EVP_PKEY_new();
 281         if (!k)
 282             return 0;
 283         EVP_PKEY_set1_DSA(k, x);
 284
 285         ret = PEM_write_bio_PrivateKey(bp, k, enc, kstr, klen, cb, u);
 286         EVP_PKEY_free(k);
 287         return ret;
 288     } else
 289         return PEM_ASN1_write_bio((i2d_of_void *)i2d_DSAPrivateKey,
 290                                   PEM_STRING_DSA, bp, x, enc, kstr, klen, cb,
 291                                   u);
 292 }
 293
 294 #  ifndef OPENSSL_NO_FP_API
 295 int PEM_write_DSAPrivateKey(FILE *fp, DSA *x, const EVP_CIPHER *enc,
 296                             unsigned char *kstr, int klen,
 297                             pem_password_cb *cb, void *u)
 298 {
 299     if (FIPS_mode()) {
 300         EVP_PKEY *k;
 301         int ret;
 302         k = EVP_PKEY_new();
 303         if (!k)
 304             return 0;
 305         EVP_PKEY_set1_DSA(k, x);
 306         ret = PEM_write_PrivateKey(fp, k, enc, kstr, klen, cb, u);
 307         EVP_PKEY_free(k);
 308         return ret;
 309     } else
 310         return PEM_ASN1_write((i2d_of_void *)i2d_DSAPrivateKey,
 311                               PEM_STRING_DSA, fp, x, enc, kstr, klen, cb, u);
 312 }
 313 #  endif
 314
 315 # else
 316
 317 IMPLEMENT_PEM_write_cb_const(DSAPrivateKey, DSA, PEM_STRING_DSA,
 318                              DSAPrivateKey)
 319 # endif
 320     IMPLEMENT_PEM_rw(DSA_PUBKEY, DSA, PEM_STRING_PUBLIC, DSA_PUBKEY)
 321 # ifndef OPENSSL_NO_FP_API
 322 DSA *PEM_read_DSAPrivateKey(FILE *fp, DSA **dsa, pem_password_cb *cb, void *u)
 323 {
 324     EVP_PKEY *pktmp;
 325     pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
 326     return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
 327 }
 328
 329 # endif
 330
 331 IMPLEMENT_PEM_rw_const(DSAparams, DSA, PEM_STRING_DSAPARAMS, DSAparams)
 332 #endif
 333 #ifndef OPENSSL_NO_EC
 334 static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey)
 335 {
 336     EC_KEY *dtmp;
 337     if (!key)
 338         return NULL;
 339     dtmp = EVP_PKEY_get1_EC_KEY(key);
 340     EVP_PKEY_free(key);
 341     if (!dtmp)
 342         return NULL;
 343     if (eckey) {
 344         EC_KEY_free(*eckey);
 345         *eckey = dtmp;
 346     }
 347     return dtmp;
 348 }
 349
 350 EC_KEY *PEM_read_bio_ECPrivateKey(BIO *bp, EC_KEY **key, pem_password_cb *cb,
 351                                   void *u)
 352 {
 353     EVP_PKEY *pktmp;
 354     pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
 355     return pkey_get_eckey(pktmp, key); /* will free pktmp */
 356 }
 357
 358 IMPLEMENT_PEM_rw_const(ECPKParameters, EC_GROUP, PEM_STRING_ECPARAMETERS,
 359                        ECPKParameters)
 360 # ifdef OPENSSL_FIPS
 361 int PEM_write_bio_ECPrivateKey(BIO *bp, EC_KEY *x, const EVP_CIPHER *enc,
 362                                unsigned char *kstr, int klen,
 363                                pem_password_cb *cb, void *u)
 364 {
 365     if (FIPS_mode()) {
 366         EVP_PKEY *k;
 367         int ret;
 368         k = EVP_PKEY_new();
 369         if (!k)
 370             return 0;
 371         EVP_PKEY_set1_EC_KEY(k, x);
 372
 373         ret = PEM_write_bio_PrivateKey(bp, k, enc, kstr, klen, cb, u);
 374         EVP_PKEY_free(k);
 375         return ret;
 376     } else
 377         return PEM_ASN1_write_bio((i2d_of_void *)i2d_ECPrivateKey,
 378                                   PEM_STRING_ECPRIVATEKEY,
 379                                   bp, x, enc, kstr, klen, cb, u);
 380 }
 381
 382 #  ifndef OPENSSL_NO_FP_API
 383 int PEM_write_ECPrivateKey(FILE *fp, EC_KEY *x, const EVP_CIPHER *enc,
 384                            unsigned char *kstr, int klen,
 385                            pem_password_cb *cb, void *u)
 386 {
 387     if (FIPS_mode()) {
 388         EVP_PKEY *k;
 389         int ret;
 390         k = EVP_PKEY_new();
 391         if (!k)
 392             return 0;
 393         EVP_PKEY_set1_EC_KEY(k, x);
 394         ret = PEM_write_PrivateKey(fp, k, enc, kstr, klen, cb, u);
 395         EVP_PKEY_free(k);
 396         return ret;
 397     } else
 398         return PEM_ASN1_write((i2d_of_void *)i2d_ECPrivateKey,
 399                               PEM_STRING_ECPRIVATEKEY,
 400                               fp, x, enc, kstr, klen, cb, u);
 401 }
 402 #  endif
 403
 404 # else
 405     IMPLEMENT_PEM_write_cb(ECPrivateKey, EC_KEY, PEM_STRING_ECPRIVATEKEY,
 406                        ECPrivateKey)
 407 # endif
 408 IMPLEMENT_PEM_rw(EC_PUBKEY, EC_KEY, PEM_STRING_PUBLIC, EC_PUBKEY)
 409 # ifndef OPENSSL_NO_FP_API
 410 EC_KEY *PEM_read_ECPrivateKey(FILE *fp, EC_KEY **eckey, pem_password_cb *cb,
 411                               void *u)
 412 {
 413     EVP_PKEY *pktmp;
 414     pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
 415     return pkey_get_eckey(pktmp, eckey); /* will free pktmp */
 416 }
 417
 418 # endif
 419
 420 #endif
 421
 422 #ifndef OPENSSL_NO_DH
 423
 424 IMPLEMENT_PEM_write_const(DHparams, DH, PEM_STRING_DHPARAMS, DHparams)
 425     IMPLEMENT_PEM_write_const(DHxparams, DH, PEM_STRING_DHXPARAMS, DHxparams)
 426 #endif
 427 IMPLEMENT_PEM_rw(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)