crypto/asn1/d2i_pr.c

   1 /* crypto/asn1/d2i_pr.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 "bn.h"
  62 #include "evp.h"
  63 #include "objects.h"
  64 #include "x509.h"
  65
  66 EVP_PKEY *d2i_PrivateKey(type,a,pp,length)
  67 int type;
  68 EVP_PKEY **a;
  69 unsigned char **pp;
  70 long length;
  71         {
  72         EVP_PKEY *ret;
  73
  74         if ((a == NULL) || (*a == NULL))
  75                 {
  76                 if ((ret=EVP_PKEY_new()) == NULL)
  77                         {
  78                         ASN1err(ASN1_F_D2I_PRIVATEKEY,ERR_R_EVP_LIB);
  79                         return(NULL);
  80                         }
  81                 }
  82         else    ret= *a;
  83
  84         ret->save_type=type;
  85         ret->type=EVP_PKEY_type(type);
  86         switch (ret->type)
  87                 {
  88 #ifndef NO_RSA
  89         case EVP_PKEY_RSA:
  90                 if ((ret->pkey.rsa=d2i_RSAPrivateKey(NULL,pp,length)) == NULL)
  91                         {
  92                         ASN1err(ASN1_F_D2I_PRIVATEKEY,ERR_R_ASN1_LIB);
  93                         goto err;
  94                         }
  95                 break;
  96 #endif
  97 #ifndef NO_DSA
  98         case EVP_PKEY_DSA:
  99                 if ((ret->pkey.dsa=d2i_DSAPrivateKey(NULL,pp,length)) == NULL)
 100                         {
 101                         ASN1err(ASN1_F_D2I_PRIVATEKEY,ERR_R_ASN1_LIB);
 102                         goto err;
 103                         }
 104                 break;
 105 #endif
 106         default:
 107                 ASN1err(ASN1_F_D2I_PRIVATEKEY,ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE);
 108                 goto err;
 109                 /* break; */
 110                 }
 111         if (a != NULL) (*a)=ret;
 112         return(ret);
 113 err:
 114         if ((ret != NULL) && ((a == NULL) || (*a != ret))) EVP_PKEY_free(ret);
 115         return(NULL);
 116         }
 117