crypto/openssl-0.9.7d/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 #include <stdio.h>
  60 #undef SSLEAY_MACROS
  61 #include "cryptlib.h"
  62 #include <openssl/bio.h>
  63 #include <openssl/evp.h>
  64 #include <openssl/x509.h>
  65 #include <openssl/pkcs7.h>
  66 #include <openssl/pem.h>
  67
  68 #ifndef OPENSSL_NO_RSA
  69 static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa);
  70 #endif
  71 #ifndef OPENSSL_NO_DSA
  72 static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa);
  73 #endif
  74
  75 IMPLEMENT_PEM_rw(X509_REQ, X509_REQ, PEM_STRING_X509_REQ, X509_REQ)
  76
  77 IMPLEMENT_PEM_write(X509_REQ_NEW, X509_REQ, PEM_STRING_X509_REQ_OLD, X509_REQ)
  78
  79 IMPLEMENT_PEM_rw(X509_CRL, X509_CRL, PEM_STRING_X509_CRL, X509_CRL)
  80
  81 IMPLEMENT_PEM_rw(PKCS7, PKCS7, PEM_STRING_PKCS7, PKCS7)
  82
  83 IMPLEMENT_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE,
  84                                         PEM_STRING_X509, NETSCAPE_CERT_SEQUENCE)
  85
  86
  87 #ifndef OPENSSL_NO_RSA
  88
  89 /* We treat RSA or DSA private keys as a special case.
  90  *
  91  * For private keys we read in an EVP_PKEY structure with
  92  * PEM_read_bio_PrivateKey() and extract the relevant private
  93  * key: this means can handle "traditional" and PKCS#8 formats
  94  * transparently.
  95  */
  96
  97 static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa)
  98 {
  99         RSA *rtmp;
 100         if(!key) return NULL;
 101         rtmp = EVP_PKEY_get1_RSA(key);
 102         EVP_PKEY_free(key);
 103         if(!rtmp) return NULL;
 104         if(rsa) {
 105                 RSA_free(*rsa);
 106                 *rsa = rtmp;
 107         }
 108         return rtmp;
 109 }
 110
 111 RSA *PEM_read_bio_RSAPrivateKey(BIO *bp, RSA **rsa, pem_password_cb *cb,
 112                                                                 void *u)
 113 {
 114         EVP_PKEY *pktmp;
 115         pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
 116         return pkey_get_rsa(pktmp, rsa);
 117 }
 118
 119 #ifndef OPENSSL_NO_FP_API
 120
 121 RSA *PEM_read_RSAPrivateKey(FILE *fp, RSA **rsa, pem_password_cb *cb,
 122                                                                 void *u)
 123 {
 124         EVP_PKEY *pktmp;
 125         pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
 126         return pkey_get_rsa(pktmp, rsa);
 127 }
 128
 129 #endif
 130
 131 IMPLEMENT_PEM_write_cb(RSAPrivateKey, RSA, PEM_STRING_RSA, RSAPrivateKey)
 132 IMPLEMENT_PEM_rw(RSAPublicKey, RSA, PEM_STRING_RSA_PUBLIC, RSAPublicKey)
 133 IMPLEMENT_PEM_rw(RSA_PUBKEY, RSA, PEM_STRING_PUBLIC, RSA_PUBKEY)
 134
 135 #endif
 136
 137 #ifndef OPENSSL_NO_DSA
 138
 139 static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa)
 140 {
 141         DSA *dtmp;
 142         if(!key) return NULL;
 143         dtmp = EVP_PKEY_get1_DSA(key);
 144         EVP_PKEY_free(key);
 145         if(!dtmp) return NULL;
 146         if(dsa) {
 147                 DSA_free(*dsa);
 148                 *dsa = dtmp;
 149         }
 150         return dtmp;
 151 }
 152
 153 DSA *PEM_read_bio_DSAPrivateKey(BIO *bp, DSA **dsa, pem_password_cb *cb,
 154                                                                 void *u)
 155 {
 156         EVP_PKEY *pktmp;
 157         pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
 158         return pkey_get_dsa(pktmp, dsa);
 159 }
 160
 161 IMPLEMENT_PEM_write_cb(DSAPrivateKey, DSA, PEM_STRING_DSA, DSAPrivateKey)
 162 IMPLEMENT_PEM_rw(DSA_PUBKEY, DSA, PEM_STRING_PUBLIC, DSA_PUBKEY)
 163
 164 #ifndef OPENSSL_NO_FP_API
 165
 166 DSA *PEM_read_DSAPrivateKey(FILE *fp, DSA **dsa, pem_password_cb *cb,
 167                                                                 void *u)
 168 {
 169         EVP_PKEY *pktmp;
 170         pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
 171         return pkey_get_dsa(pktmp, dsa);
 172 }
 173
 174 #endif
 175
 176 IMPLEMENT_PEM_rw(DSAparams, DSA, PEM_STRING_DSAPARAMS, DSAparams)
 177
 178 #endif
 179
 180 #ifndef OPENSSL_NO_DH
 181
 182 IMPLEMENT_PEM_rw(DHparams, DH, PEM_STRING_DHPARAMS, DHparams)
 183
 184 #endif
 185
 186
 187 /* The PrivateKey case is not that straightforward.
 188  *   IMPLEMENT_PEM_rw_cb(PrivateKey, EVP_PKEY, PEM_STRING_EVP_PKEY, PrivateKey)
 189  * does not work, RSA and DSA keys have specific strings.
 190  * (When reading, parameter PEM_STRING_EVP_PKEY is a wildcard for anything
 191  * appropriate.)
 192  */
 193 IMPLEMENT_PEM_write_cb(PrivateKey, EVP_PKEY, ((x->type == EVP_PKEY_DSA)?PEM_STRING_DSA:PEM_STRING_RSA), PrivateKey)
 194
 195 IMPLEMENT_PEM_rw(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)
 196