author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 02:01:42 +0200 | |
changeset 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
0
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/* crypto/asn1/d2i_pr.c */ |
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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* All rights reserved. |
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* |
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* This package is an SSL implementation written |
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* by Eric Young (eay@cryptsoft.com). |
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* The implementation was written so as to conform with Netscapes SSL. |
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* |
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* This library is free for commercial and non-commercial use as long as |
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* the following conditions are aheared to. The following conditions |
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* apply to all code found in this distribution, be it the RC4, RSA, |
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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* included with this distribution is covered by the same copyright terms |
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* except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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* |
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* Copyright remains Eric Young's, and as such any Copyright notices in |
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* the code are not to be removed. |
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* If this package is used in a product, Eric Young should be given attribution |
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* as the author of the parts of the library used. |
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* This can be in the form of a textual message at program startup or |
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* in documentation (online or textual) provided with the package. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* "This product includes cryptographic software written by |
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* Eric Young (eay@cryptsoft.com)" |
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* The word 'cryptographic' can be left out if the rouines from the library |
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* being used are not cryptographic related :-). |
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* 4. If you include any Windows specific code (or a derivative thereof) from |
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* the apps directory (application code) you must include an acknowledgement: |
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* The licence and distribution terms for any publically available version or |
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* derivative of this code cannot be changed. i.e. this code cannot simply be |
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* copied and put under another distribution licence |
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* [including the GNU Public Licence.] |
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*/ |
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|
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#include <stdio.h> |
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#include "cryptlib.h" |
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#include <openssl/bn.h> |
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#include <openssl/evp.h> |
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#include <openssl/objects.h> |
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#include <openssl/asn1.h> |
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#ifndef OPENSSL_NO_RSA |
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#include <openssl/rsa.h> |
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#endif |
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#ifndef OPENSSL_NO_DSA |
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#include <openssl/dsa.h> |
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#endif |
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#ifndef OPENSSL_NO_EC |
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#include <openssl/ec.h> |
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#endif |
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|
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EXPORT_C EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp, |
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long length) |
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{ |
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EVP_PKEY *ret; |
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|
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if ((a == NULL) || (*a == NULL)) |
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{ |
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if ((ret=EVP_PKEY_new()) == NULL) |
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{ |
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ASN1err(ASN1_F_D2I_PRIVATEKEY,ERR_R_EVP_LIB); |
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return(NULL); |
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} |
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} |
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else ret= *a; |
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|
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ret->save_type=type; |
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ret->type=EVP_PKEY_type(type); |
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switch (ret->type) |
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{ |
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#ifndef OPENSSL_NO_RSA |
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case EVP_PKEY_RSA: |
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if ((ret->pkey.rsa=d2i_RSAPrivateKey(NULL, |
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(const unsigned char **)pp,length)) == NULL) /* TMP UGLY CAST */ |
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98 |
{ |
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ASN1err(ASN1_F_D2I_PRIVATEKEY,ERR_R_ASN1_LIB); |
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goto err; |
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} |
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102 |
break; |
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103 |
#endif |
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104 |
#ifndef OPENSSL_NO_DSA |
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105 |
case EVP_PKEY_DSA: |
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106 |
if ((ret->pkey.dsa=d2i_DSAPrivateKey(NULL, |
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107 |
(const unsigned char **)pp,length)) == NULL) /* TMP UGLY CAST */ |
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108 |
{ |
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109 |
ASN1err(ASN1_F_D2I_PRIVATEKEY,ERR_R_ASN1_LIB); |
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110 |
goto err; |
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111 |
} |
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112 |
break; |
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113 |
#endif |
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114 |
#ifndef OPENSSL_NO_EC |
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115 |
case EVP_PKEY_EC: |
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116 |
if ((ret->pkey.ec = d2i_ECPrivateKey(NULL, |
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117 |
(const unsigned char **)pp, length)) == NULL) |
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118 |
{ |
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119 |
ASN1err(ASN1_F_D2I_PRIVATEKEY, ERR_R_ASN1_LIB); |
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120 |
goto err; |
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121 |
} |
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122 |
break; |
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123 |
#endif |
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124 |
default: |
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125 |
ASN1err(ASN1_F_D2I_PRIVATEKEY,ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE); |
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126 |
goto err; |
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127 |
/* break; */ |
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128 |
} |
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129 |
if (a != NULL) (*a)=ret; |
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130 |
return(ret); |
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131 |
err: |
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132 |
if ((ret != NULL) && ((a == NULL) || (*a != ret))) EVP_PKEY_free(ret); |
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133 |
return(NULL); |
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134 |
} |
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135 |
|
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136 |
/* This works like d2i_PrivateKey() except it automatically works out the type */ |
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137 |
|
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138 |
EXPORT_C EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp, |
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139 |
long length) |
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140 |
{ |
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141 |
STACK_OF(ASN1_TYPE) *inkey; |
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142 |
const unsigned char *p; |
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143 |
int keytype; |
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144 |
p = *pp; |
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145 |
/* Dirty trick: read in the ASN1 data into a STACK_OF(ASN1_TYPE): |
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146 |
* by analyzing it we can determine the passed structure: this |
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147 |
* assumes the input is surrounded by an ASN1 SEQUENCE. |
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|
148 |
*/ |
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149 |
inkey = d2i_ASN1_SET_OF_ASN1_TYPE(NULL, &p, length, d2i_ASN1_TYPE, |
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|
150 |
ASN1_TYPE_free, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL); |
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|
151 |
/* Since we only need to discern "traditional format" RSA and DSA |
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152 |
* keys we can just count the elements. |
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153 |
*/ |
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|
154 |
if(sk_ASN1_TYPE_num(inkey) == 6) |
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|
155 |
keytype = EVP_PKEY_DSA; |
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|
156 |
else if (sk_ASN1_TYPE_num(inkey) == 4) |
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|
157 |
keytype = EVP_PKEY_EC; |
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|
158 |
else keytype = EVP_PKEY_RSA; |
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|
159 |
sk_ASN1_TYPE_pop_free(inkey, ASN1_TYPE_free); |
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|
160 |
return d2i_PrivateKey(keytype, a, pp, length); |
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|
161 |
} |