]> git.ipfire.org Git - thirdparty/openssl.git/blame - crypto/asn1/d2i_pr.c
Remove BIO_s_file_internal macro.
[thirdparty/openssl.git] / crypto / asn1 / d2i_pr.c
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d02b48c6 1/* crypto/asn1/d2i_pr.c */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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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.
0f113f3e 8 *
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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).
0f113f3e 15 *
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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.
0f113f3e 22 *
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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 :-).
0f113f3e 37 * 4. If you include any Windows specific code (or a derivative thereof) from
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38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
0f113f3e 40 *
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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.
0f113f3e 52 *
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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>
b39fc560 60#include "internal/cryptlib.h"
ec577822
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61#include <openssl/bn.h>
62#include <openssl/evp.h>
63#include <openssl/objects.h>
6f344eab 64#ifndef OPENSSL_NO_ENGINE
0f113f3e 65# include <openssl/engine.h>
41eacc84 66#endif
94e6ae7a 67#include <openssl/x509.h>
f66c3032 68#include <openssl/asn1.h>
5fe736e5 69#include "internal/asn1_int.h"
d02b48c6 70
875a644a 71EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp,
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72 long length)
73{
74 EVP_PKEY *ret;
a46c9789 75 const unsigned char *p = *pp;
d02b48c6 76
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77 if ((a == NULL) || (*a == NULL)) {
78 if ((ret = EVP_PKEY_new()) == NULL) {
79 ASN1err(ASN1_F_D2I_PRIVATEKEY, ERR_R_EVP_LIB);
80 return (NULL);
81 }
82 } else {
83 ret = *a;
41eacc84 84#ifndef OPENSSL_NO_ENGINE
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85 if (ret->engine) {
86 ENGINE_finish(ret->engine);
87 ret->engine = NULL;
88 }
41eacc84 89#endif
0f113f3e 90 }
01b8b3c7 91
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92 if (!EVP_PKEY_set_type(ret, type)) {
93 ASN1err(ASN1_F_D2I_PRIVATEKEY, ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE);
94 goto err;
95 }
01b8b3c7 96
0f113f3e 97 if (!ret->ameth->old_priv_decode ||
a46c9789 98 !ret->ameth->old_priv_decode(ret, &p, length)) {
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99 if (ret->ameth->priv_decode) {
100 PKCS8_PRIV_KEY_INFO *p8 = NULL;
a46c9789 101 p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, length);
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102 if (!p8)
103 goto err;
104 EVP_PKEY_free(ret);
105 ret = EVP_PKCS82PKEY(p8);
106 PKCS8_PRIV_KEY_INFO_free(p8);
94e6ae7a 107
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108 } else {
109 ASN1err(ASN1_F_D2I_PRIVATEKEY, ERR_R_ASN1_LIB);
110 goto err;
111 }
112 }
a46c9789 113 *pp = p;
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114 if (a != NULL)
115 (*a) = ret;
116 return (ret);
117 err:
c5ba2d99 118 if (a == NULL || *a != ret)
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119 EVP_PKEY_free(ret);
120 return (NULL);
121}
d02b48c6 122
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123/*
124 * This works like d2i_PrivateKey() except it automatically works out the
125 * type
126 */
20432eae 127
875a644a 128EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp,
0f113f3e 129 long length)
20432eae 130{
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131 STACK_OF(ASN1_TYPE) *inkey;
132 const unsigned char *p;
133 int keytype;
134 p = *pp;
135 /*
136 * Dirty trick: read in the ASN1 data into a STACK_OF(ASN1_TYPE): by
137 * analyzing it we can determine the passed structure: this assumes the
138 * input is surrounded by an ASN1 SEQUENCE.
139 */
140 inkey = d2i_ASN1_SEQUENCE_ANY(NULL, &p, length);
a46c9789 141 p = *pp;
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142 /*
143 * Since we only need to discern "traditional format" RSA and DSA keys we
144 * can just count the elements.
145 */
146 if (sk_ASN1_TYPE_num(inkey) == 6)
147 keytype = EVP_PKEY_DSA;
148 else if (sk_ASN1_TYPE_num(inkey) == 4)
149 keytype = EVP_PKEY_EC;
150 else if (sk_ASN1_TYPE_num(inkey) == 3) { /* This seems to be PKCS8, not
151 * traditional format */
a46c9789 152 PKCS8_PRIV_KEY_INFO *p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, length);
0f113f3e 153 EVP_PKEY *ret;
94e6ae7a 154
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155 sk_ASN1_TYPE_pop_free(inkey, ASN1_TYPE_free);
156 if (!p8) {
157 ASN1err(ASN1_F_D2I_AUTOPRIVATEKEY,
158 ASN1_R_UNSUPPORTED_PUBLIC_KEY_TYPE);
159 return NULL;
160 }
161 ret = EVP_PKCS82PKEY(p8);
162 PKCS8_PRIV_KEY_INFO_free(p8);
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163 if (ret != NULL)
164 *pp = p;
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165 if (a) {
166 *a = ret;
167 }
168 return ret;
169 } else
170 keytype = EVP_PKEY_RSA;
171 sk_ASN1_TYPE_pop_free(inkey, ASN1_TYPE_free);
172 return d2i_PrivateKey(keytype, a, pp, length);
20432eae 173}