crypto/x509/x509spki.c

   1 /*
   2  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   3  * 1999.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include <stdio.h>
  60 #include "internal/cryptlib.h"
  61 #include <openssl/x509.h>
  62
  63 int NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey)
  64 {
  65     if ((x == NULL) || (x->spkac == NULL))
  66         return (0);
  67     return (X509_PUBKEY_set(&(x->spkac->pubkey), pkey));
  68 }
  69
  70 EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x)
  71 {
  72     if ((x == NULL) || (x->spkac == NULL))
  73         return (NULL);
  74     return (X509_PUBKEY_get(x->spkac->pubkey));
  75 }
  76
  77 /* Load a Netscape SPKI from a base64 encoded string */
  78
  79 NETSCAPE_SPKI *NETSCAPE_SPKI_b64_decode(const char *str, int len)
  80 {
  81     unsigned char *spki_der;
  82     const unsigned char *p;
  83     int spki_len;
  84     NETSCAPE_SPKI *spki;
  85     if (len <= 0)
  86         len = strlen(str);
  87     if ((spki_der = OPENSSL_malloc(len + 1)) == NULL) {
  88         X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, ERR_R_MALLOC_FAILURE);
  89         return NULL;
  90     }
  91     spki_len = EVP_DecodeBlock(spki_der, (const unsigned char *)str, len);
  92     if (spki_len < 0) {
  93         X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, X509_R_BASE64_DECODE_ERROR);
  94         OPENSSL_free(spki_der);
  95         return NULL;
  96     }
  97     p = spki_der;
  98     spki = d2i_NETSCAPE_SPKI(NULL, &p, spki_len);
  99     OPENSSL_free(spki_der);
 100     return spki;
 101 }
 102
 103 /* Generate a base64 encoded string from an SPKI */
 104
 105 char *NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki)
 106 {
 107     unsigned char *der_spki, *p;
 108     char *b64_str;
 109     int der_len;
 110     der_len = i2d_NETSCAPE_SPKI(spki, NULL);
 111     der_spki = OPENSSL_malloc(der_len);
 112     b64_str = OPENSSL_malloc(der_len * 2);
 113     if (der_spki == NULL || b64_str == NULL) {
 114         X509err(X509_F_NETSCAPE_SPKI_B64_ENCODE, ERR_R_MALLOC_FAILURE);
 115         OPENSSL_free(der_spki);
 116         OPENSSL_free(b64_str);
 117         return NULL;
 118     }
 119     p = der_spki;
 120     i2d_NETSCAPE_SPKI(spki, &p);
 121     EVP_EncodeBlock((unsigned char *)b64_str, der_spki, der_len);
 122     OPENSSL_free(der_spki);
 123     return b64_str;
 124 }