crypto/asn1/x_pkey.c

   1 /* crypto/asn1/x_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 "internal/cryptlib.h"
  61 #include <openssl/evp.h>
  62 #include <openssl/objects.h>
  63 #include <openssl/x509.h>
  64
  65 X509_PKEY *X509_PKEY_new(void)
  66 {
  67     X509_PKEY *ret = NULL;
  68
  69     ret = OPENSSL_zalloc(sizeof(*ret));
  70     if (!ret)
  71         goto err;
  72
  73     ret->version = 0;
  74     ret->enc_algor = X509_ALGOR_new();
  75     ret->enc_pkey = ASN1_OCTET_STRING_new();
  76     if (!ret->enc_algor || !ret->enc_pkey)
  77         goto err;
  78     ret->dec_pkey = NULL;
  79     ret->key_length = 0;
  80     ret->key_data = NULL;
  81     ret->key_free = 0;
  82     ret->cipher.cipher = NULL;
  83     memset(ret->cipher.iv, 0, EVP_MAX_IV_LENGTH);
  84     ret->references = 1;
  85     return ret;
  86 err:
  87     X509_PKEY_free(ret);
  88     ASN1err(ASN1_F_X509_PKEY_NEW, ERR_R_MALLOC_FAILURE);
  89     return NULL;
  90 }
  91
  92 void X509_PKEY_free(X509_PKEY *x)
  93 {
  94     int i;
  95
  96     if (x == NULL)
  97         return;
  98
  99     i = CRYPTO_add(&x->references, -1, CRYPTO_LOCK_X509_PKEY);
 100 #ifdef REF_PRINT
 101     REF_PRINT("X509_PKEY", x);
 102 #endif
 103     if (i > 0)
 104         return;
 105 #ifdef REF_CHECK
 106     if (i < 0) {
 107         fprintf(stderr, "X509_PKEY_free, bad reference count\n");
 108         abort();
 109     }
 110 #endif
 111
 112     X509_ALGOR_free(x->enc_algor);
 113     ASN1_OCTET_STRING_free(x->enc_pkey);
 114     EVP_PKEY_free(x->dec_pkey);
 115     if (x->key_free)
 116         OPENSSL_free(x->key_data);
 117     OPENSSL_free(x);
 118 }