1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
/*
* Copyright 1999-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
#include "internal/cryptlib.h"
#include <openssl/x509.h>
#include <openssl/rand.h>
#include <openssl/encoder.h>
#include "internal/provider.h"
#include "crypto/asn1.h"
#include "crypto/evp.h"
#include "crypto/x509.h"
/* Extract a private key from a PKCS8 structure */
EVP_PKEY *EVP_PKCS82PKEY_ex(const PKCS8_PRIV_KEY_INFO *p8, OSSL_LIB_CTX *libctx,
const char *propq)
{
EVP_PKEY *pkey = NULL;
const ASN1_OBJECT *algoid;
char obj_tmp[80];
if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8))
return NULL;
if ((pkey = EVP_PKEY_new()) == NULL) {
ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
return NULL;
}
if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid))) {
i2t_ASN1_OBJECT(obj_tmp, 80, algoid);
ERR_raise_data(ERR_LIB_EVP, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM,
"TYPE=%s", obj_tmp);
goto error;
}
if (pkey->ameth->priv_decode_ex != NULL) {
if (!pkey->ameth->priv_decode_ex(pkey, p8, libctx, propq))
goto error;
} else if (pkey->ameth->priv_decode != NULL) {
if (!pkey->ameth->priv_decode(pkey, p8)) {
ERR_raise(ERR_LIB_EVP, EVP_R_PRIVATE_KEY_DECODE_ERROR);
goto error;
}
} else {
ERR_raise(ERR_LIB_EVP, EVP_R_METHOD_NOT_SUPPORTED);
goto error;
}
return pkey;
error:
EVP_PKEY_free(pkey);
return NULL;
}
EVP_PKEY *EVP_PKCS82PKEY(const PKCS8_PRIV_KEY_INFO *p8)
{
return EVP_PKCS82PKEY_ex(p8, NULL, NULL);
}
/* Turn a private key into a PKCS8 structure */
PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(const EVP_PKEY *pkey)
{
PKCS8_PRIV_KEY_INFO *p8 = NULL;
OSSL_ENCODER_CTX *ctx = NULL;
/*
* The implementation for provider-native keys is to encode the
* key to a DER encoded PKCS#8 structure, then convert it to a
* PKCS8_PRIV_KEY_INFO with good old d2i functions.
*/
if (evp_pkey_is_provided(pkey)) {
int selection = OSSL_KEYMGMT_SELECT_ALL;
unsigned char *der = NULL;
size_t derlen = 0;
const unsigned char *pp;
if ((ctx = OSSL_ENCODER_CTX_new_for_pkey(pkey, selection,
"DER", "pkcs8",
NULL)) == NULL
|| !OSSL_ENCODER_to_data(ctx, &der, &derlen))
goto error;
pp = der;
p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &pp, (long)derlen);
OPENSSL_free(der);
if (p8 == NULL)
goto error;
} else {
p8 = PKCS8_PRIV_KEY_INFO_new();
if (p8 == NULL) {
ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
return NULL;
}
if (pkey->ameth != NULL) {
if (pkey->ameth->priv_encode != NULL) {
if (!pkey->ameth->priv_encode(p8, pkey)) {
ERR_raise(ERR_LIB_EVP, EVP_R_PRIVATE_KEY_ENCODE_ERROR);
goto error;
}
} else {
ERR_raise(ERR_LIB_EVP, EVP_R_METHOD_NOT_SUPPORTED);
goto error;
}
} else {
ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
goto error;
}
}
goto end;
error:
PKCS8_PRIV_KEY_INFO_free(p8);
p8 = NULL;
end:
OSSL_ENCODER_CTX_free(ctx);
return p8;
}
/* EVP_PKEY attribute functions */
int EVP_PKEY_get_attr_count(const EVP_PKEY *key)
{
return X509at_get_attr_count(key->attributes);
}
int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, int lastpos)
{
return X509at_get_attr_by_NID(key->attributes, nid, lastpos);
}
int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, const ASN1_OBJECT *obj,
int lastpos)
{
return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos);
}
X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc)
{
return X509at_get_attr(key->attributes, loc);
}
X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc)
{
return X509at_delete_attr(key->attributes, loc);
}
int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr)
{
if (X509at_add1_attr(&key->attributes, attr))
return 1;
return 0;
}
int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key,
const ASN1_OBJECT *obj, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_OBJ(&key->attributes, obj, type, bytes, len))
return 1;
return 0;
}
int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key,
int nid, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_NID(&key->attributes, nid, type, bytes, len))
return 1;
return 0;
}
int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key,
const char *attrname, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_txt(&key->attributes, attrname, type, bytes, len))
return 1;
return 0;
}
const char *EVP_PKEY_get0_first_alg_name(const EVP_PKEY *key)
{
const EVP_PKEY_ASN1_METHOD *ameth;
const char *name = NULL;
if (key->keymgmt != NULL)
return EVP_KEYMGMT_get0_first_name(key->keymgmt);
/* Otherwise fallback to legacy */
ameth = EVP_PKEY_get0_asn1(key);
if (ameth != NULL)
EVP_PKEY_asn1_get0_info(NULL, NULL,
NULL, NULL, &name, ameth);
return name;
}
|
