release/src/router/openssl/crypto/x509v3/v3_skey.c

   1 /* v3_skey.c */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project 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
  60 #include <stdio.h>
  61 #include "cryptlib.h"
  62 #include <openssl/x509v3.h>
  63
  64 static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, char *str);
  65 const X509V3_EXT_METHOD v3_skey_id = {
  66 NID_subject_key_identifier, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
  67 0,0,0,0,
  68 (X509V3_EXT_I2S)i2s_ASN1_OCTET_STRING,
  69 (X509V3_EXT_S2I)s2i_skey_id,
  70 0,0,0,0,
  71 NULL};
  72
  73 char *i2s_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
  74              ASN1_OCTET_STRING *oct)
  75 {
  76         return hex_to_string(oct->data, oct->length);
  77 }
  78
  79 ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
  80              X509V3_CTX *ctx, char *str)
  81 {
  82         ASN1_OCTET_STRING *oct;
  83         long length;
  84
  85         if(!(oct = M_ASN1_OCTET_STRING_new())) {
  86                 X509V3err(X509V3_F_S2I_ASN1_OCTET_STRING,ERR_R_MALLOC_FAILURE);
  87                 return NULL;
  88         }
  89
  90         if(!(oct->data = string_to_hex(str, &length))) {
  91                 M_ASN1_OCTET_STRING_free(oct);
  92                 return NULL;
  93         }
  94
  95         oct->length = length;
  96
  97         return oct;
  98
  99 }
 100
 101 static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method,
 102              X509V3_CTX *ctx, char *str)
 103 {
 104         ASN1_OCTET_STRING *oct;
 105         ASN1_BIT_STRING *pk;
 106         unsigned char pkey_dig[EVP_MAX_MD_SIZE];
 107         unsigned int diglen;
 108
 109         if(strcmp(str, "hash")) return s2i_ASN1_OCTET_STRING(method, ctx, str);
 110
 111         if(!(oct = M_ASN1_OCTET_STRING_new())) {
 112                 X509V3err(X509V3_F_S2I_SKEY_ID,ERR_R_MALLOC_FAILURE);
 113                 return NULL;
 114         }
 115
 116         if(ctx && (ctx->flags == CTX_TEST)) return oct;
 117
 118         if(!ctx || (!ctx->subject_req && !ctx->subject_cert)) {
 119                 X509V3err(X509V3_F_S2I_SKEY_ID,X509V3_R_NO_PUBLIC_KEY);
 120                 goto err;
 121         }
 122
 123         if(ctx->subject_req)
 124                 pk = ctx->subject_req->req_info->pubkey->public_key;
 125         else pk = ctx->subject_cert->cert_info->key->public_key;
 126
 127         if(!pk) {
 128                 X509V3err(X509V3_F_S2I_SKEY_ID,X509V3_R_NO_PUBLIC_KEY);
 129                 goto err;
 130         }
 131
 132         if (!EVP_Digest(pk->data, pk->length, pkey_dig, &diglen, EVP_sha1(), NULL))
 133                 goto err;
 134
 135         if(!M_ASN1_OCTET_STRING_set(oct, pkey_dig, diglen)) {
 136                 X509V3err(X509V3_F_S2I_SKEY_ID,ERR_R_MALLOC_FAILURE);
 137                 goto err;
 138         }
 139
 140         return oct;
 141
 142         err:
 143         M_ASN1_OCTET_STRING_free(oct);
 144         return NULL;
 145 }