crypto/x509/x509spki.c

   1 /* x509spki.c */
   2 /*
   3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   4  * 1999.
   5  */
   6 /* ====================================================================
   7  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  *
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in
  18  *    the documentation and/or other materials provided with the
  19  *    distribution.
  20  *
  21  * 3. All advertising materials mentioning features or use of this
  22  *    software must display the following acknowledgment:
  23  *    "This product includes software developed by the OpenSSL Project
  24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  25  *
  26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  27  *    endorse or promote products derived from this software without
  28  *    prior written permission. For written permission, please contact
  29  *    licensing@OpenSSL.org.
  30  *
  31  * 5. Products derived from this software may not be called "OpenSSL"
  32  *    nor may "OpenSSL" appear in their names without prior written
  33  *    permission of the OpenSSL Project.
  34  *
  35  * 6. Redistributions of any form whatsoever must retain the following
  36  *    acknowledgment:
  37  *    "This product includes software developed by the OpenSSL Project
  38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  51  * OF THE POSSIBILITY OF SUCH DAMAGE.
  52  * ====================================================================
  53  *
  54  * This product includes cryptographic software written by Eric Young
  55  * (eay@cryptsoft.com).  This product includes software written by Tim
  56  * Hudson (tjh@cryptsoft.com).
  57  *
  58  */
  59
  60 #include <stdio.h>
  61 #include "cryptlib.h"
  62 #include <openssl/x509.h>
  63
  64 int NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey)
  65 {
  66     if ((x == NULL) || (x->spkac == NULL))
  67         return (0);
  68     return (X509_PUBKEY_set(&(x->spkac->pubkey), pkey));
  69 }
  70
  71 EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x)
  72 {
  73     if ((x == NULL) || (x->spkac == NULL))
  74         return (NULL);
  75     return (X509_PUBKEY_get(x->spkac->pubkey));
  76 }
  77
  78 /* Load a Netscape SPKI from a base64 encoded string */
  79
  80 NETSCAPE_SPKI *NETSCAPE_SPKI_b64_decode(const char *str, int len)
  81 {
  82     unsigned char *spki_der;
  83     const unsigned char *p;
  84     int spki_len;
  85     NETSCAPE_SPKI *spki;
  86     if (len <= 0)
  87         len = strlen(str);
  88     if (!(spki_der = OPENSSL_malloc(len + 1))) {
  89         X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, ERR_R_MALLOC_FAILURE);
  90         return NULL;
  91     }
  92     spki_len = EVP_DecodeBlock(spki_der, (const unsigned char *)str, len);
  93     if (spki_len < 0) {
  94         X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, X509_R_BASE64_DECODE_ERROR);
  95         OPENSSL_free(spki_der);
  96         return NULL;
  97     }
  98     p = spki_der;
  99     spki = d2i_NETSCAPE_SPKI(NULL, &p, spki_len);
 100     OPENSSL_free(spki_der);
 101     return spki;
 102 }
 103
 104 /* Generate a base64 encoded string from an SPKI */
 105
 106 char *NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki)
 107 {
 108     unsigned char *der_spki, *p;
 109     char *b64_str;
 110     int der_len;
 111     der_len = i2d_NETSCAPE_SPKI(spki, NULL);
 112     der_spki = OPENSSL_malloc(der_len);
 113     b64_str = OPENSSL_malloc(der_len * 2);
 114     if (!der_spki || !b64_str) {
 115         X509err(X509_F_NETSCAPE_SPKI_B64_ENCODE, ERR_R_MALLOC_FAILURE);
 116         if (der_spki != NULL)
 117             OPENSSL_free(der_spki);
 118         if (b64_str != NULL)
 119             OPENSSL_free(b64_str);
 120         return NULL;
 121     }
 122     p = der_spki;
 123     i2d_NETSCAPE_SPKI(spki, &p);
 124     EVP_EncodeBlock((unsigned char *)b64_str, der_spki, der_len);
 125     OPENSSL_free(der_spki);
 126     return b64_str;
 127 }