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
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/*
* Copyright 1995-2020 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 "internal/cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pkcs12.h>
#include <openssl/pem.h>
#include <openssl/engine.h>
#include <openssl/dh.h>
#include <openssl/store.h>
#include <openssl/ui.h>
#include <openssl/serializer.h>
#include "crypto/store.h"
#include "crypto/asn1.h"
#include "crypto/evp.h"
#include "pem_local.h"
int pem_check_suffix(const char *pem_str, const char *suffix);
EVP_PKEY *PEM_read_bio_PrivateKey_ex(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
void *u, OPENSSL_CTX *libctx,
const char *propq)
{
EVP_PKEY *ret = NULL;
OSSL_STORE_CTX *ctx = NULL;
OSSL_STORE_INFO *info = NULL;
UI_METHOD *ui_method = NULL;
if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
return NULL;
if ((ctx = ossl_store_attach_pem_bio(bp, ui_method, u, libctx,
propq)) == NULL)
goto err;
#ifndef OPENSSL_NO_SECURE_HEAP
{
int on = 1;
if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
goto err;
}
#endif
while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY) {
ret = OSSL_STORE_INFO_get1_PKEY(info);
break;
}
OSSL_STORE_INFO_free(info);
}
if (ret != NULL && x != NULL)
*x = ret;
err:
ossl_store_detach_pem_bio(ctx);
UI_destroy_method(ui_method);
OSSL_STORE_INFO_free(info);
return ret;
}
EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
void *u)
{
return PEM_read_bio_PrivateKey_ex(bp, x, cb, u, NULL, NULL);
}
PEM_write_cb_fnsig(PrivateKey, EVP_PKEY, BIO, write_bio)
{
IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, PrivateKey);
IMPLEMENT_PEM_provided_write_body_pass();
IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
legacy:
if (x->ameth == NULL || x->ameth->priv_encode != NULL)
return PEM_write_bio_PKCS8PrivateKey(out, x, enc,
(const char *)kstr, klen, cb, u);
return PEM_write_bio_PrivateKey_traditional(out, x, enc, kstr, klen, cb, u);
}
int PEM_write_bio_PrivateKey_traditional(BIO *bp, const EVP_PKEY *x,
const EVP_CIPHER *enc,
const unsigned char *kstr, int klen,
pem_password_cb *cb, void *u)
{
char pem_str[80];
BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
pem_str, bp, x, enc, kstr, klen, cb, u);
}
EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
{
EVP_PKEY *ret = NULL;
OSSL_STORE_CTX *ctx = NULL;
OSSL_STORE_INFO *info = NULL;
if ((ctx = ossl_store_attach_pem_bio(bp, UI_null(), NULL, NULL, NULL)) == NULL)
goto err;
while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
ret = OSSL_STORE_INFO_get1_PARAMS(info);
break;
}
OSSL_STORE_INFO_free(info);
}
if (ret != NULL && x != NULL)
*x = ret;
err:
ossl_store_detach_pem_bio(ctx);
OSSL_STORE_INFO_free(info);
return ret;
}
PEM_write_fnsig(Parameters, EVP_PKEY, BIO, write_bio)
{
char pem_str[80];
IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, Parameters);
IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
legacy:
if (!x->ameth || !x->ameth->param_encode)
return 0;
BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode,
pem_str, out, x, NULL, NULL, 0, 0, NULL);
}
#ifndef OPENSSL_NO_STDIO
EVP_PKEY *PEM_read_PrivateKey_ex(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
void *u, OPENSSL_CTX *libctx,
const char *propq)
{
BIO *b;
EVP_PKEY *ret;
if ((b = BIO_new(BIO_s_file())) == NULL) {
PEMerr(0, ERR_R_BUF_LIB);
return 0;
}
BIO_set_fp(b, fp, BIO_NOCLOSE);
ret = PEM_read_bio_PrivateKey_ex(b, x, cb, u, libctx, propq);
BIO_free(b);
return ret;
}
EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
void *u)
{
return PEM_read_PrivateKey_ex(fp, x, cb, u, NULL, NULL);
}
int PEM_write_PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
const unsigned char *kstr, int klen,
pem_password_cb *cb, void *u)
{
BIO *b;
int ret;
if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
return 0;
}
ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
BIO_free(b);
return ret;
}
#endif
#ifndef OPENSSL_NO_DH
/* Transparently read in PKCS#3 or X9.42 DH parameters */
DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
{
DH *ret = NULL;
EVP_PKEY *pkey = NULL;
OSSL_STORE_CTX *ctx = NULL;
OSSL_STORE_INFO *info = NULL;
UI_METHOD *ui_method = NULL;
if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
return NULL;
if ((ctx = ossl_store_attach_pem_bio(bp, ui_method, u, NULL, NULL)) == NULL)
goto err;
while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
pkey = OSSL_STORE_INFO_get0_PARAMS(info);
if (EVP_PKEY_id(pkey) == EVP_PKEY_DHX
|| EVP_PKEY_id(pkey) == EVP_PKEY_DH) {
ret = EVP_PKEY_get1_DH(pkey);
break;
}
}
OSSL_STORE_INFO_free(info);
}
if (ret != NULL && x != NULL)
*x = ret;
err:
ossl_store_detach_pem_bio(ctx);
UI_destroy_method(ui_method);
OSSL_STORE_INFO_free(info);
return ret;
}
# ifndef OPENSSL_NO_STDIO
DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
{
BIO *b;
DH *ret;
if ((b = BIO_new(BIO_s_file())) == NULL) {
PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
return 0;
}
BIO_set_fp(b, fp, BIO_NOCLOSE);
ret = PEM_read_bio_DHparams(b, x, cb, u);
BIO_free(b);
return ret;
}
# endif
#endif
|
