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1241126a DSH |
1 | /* crypto/pem/pem_pkey.c */ |
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
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 | * |
1241126a DSH |
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 | * |
1241126a DSH |
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 | * |
1241126a DSH |
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 |
1241126a DSH |
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 | * |
1241126a DSH |
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 | * |
1241126a DSH |
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" |
1241126a DSH |
61 | #include <openssl/buffer.h> |
62 | #include <openssl/objects.h> | |
63 | #include <openssl/evp.h> | |
64 | #include <openssl/rand.h> | |
65 | #include <openssl/x509.h> | |
66 | #include <openssl/pkcs12.h> | |
67 | #include <openssl/pem.h> | |
01b8b3c7 | 68 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e | 69 | # include <openssl/engine.h> |
01b8b3c7 | 70 | #endif |
2ca873e8 | 71 | #ifndef OPENSSL_NO_DH |
0f113f3e | 72 | # include <openssl/dh.h> |
2ca873e8 | 73 | #endif |
5fe736e5 | 74 | #include "internal/asn1_int.h" |
3aeb9348 | 75 | #include "internal/evp_int.h" |
1241126a | 76 | |
e4263314 | 77 | int pem_check_suffix(const char *pem_str, const char *suffix); |
1241126a | 78 | |
0f113f3e MC |
79 | EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, |
80 | void *u) | |
81 | { | |
82 | char *nm = NULL; | |
83 | const unsigned char *p = NULL; | |
84 | unsigned char *data = NULL; | |
85 | long len; | |
86 | int slen; | |
87 | EVP_PKEY *ret = NULL; | |
1241126a | 88 | |
0f113f3e MC |
89 | if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u)) |
90 | return NULL; | |
91 | p = data; | |
1241126a | 92 | |
0f113f3e MC |
93 | if (strcmp(nm, PEM_STRING_PKCS8INF) == 0) { |
94 | PKCS8_PRIV_KEY_INFO *p8inf; | |
95 | p8inf = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len); | |
96 | if (!p8inf) | |
97 | goto p8err; | |
98 | ret = EVP_PKCS82PKEY(p8inf); | |
99 | if (x) { | |
c5ba2d99 | 100 | EVP_PKEY_free((EVP_PKEY *)*x); |
0f113f3e MC |
101 | *x = ret; |
102 | } | |
103 | PKCS8_PRIV_KEY_INFO_free(p8inf); | |
104 | } else if (strcmp(nm, PEM_STRING_PKCS8) == 0) { | |
105 | PKCS8_PRIV_KEY_INFO *p8inf; | |
106 | X509_SIG *p8; | |
107 | int klen; | |
108 | char psbuf[PEM_BUFSIZE]; | |
109 | p8 = d2i_X509_SIG(NULL, &p, len); | |
110 | if (!p8) | |
111 | goto p8err; | |
112 | if (cb) | |
113 | klen = cb(psbuf, PEM_BUFSIZE, 0, u); | |
114 | else | |
115 | klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u); | |
116 | if (klen <= 0) { | |
117 | PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, PEM_R_BAD_PASSWORD_READ); | |
118 | X509_SIG_free(p8); | |
119 | goto err; | |
120 | } | |
121 | p8inf = PKCS8_decrypt(p8, psbuf, klen); | |
122 | X509_SIG_free(p8); | |
123 | if (!p8inf) | |
124 | goto p8err; | |
125 | ret = EVP_PKCS82PKEY(p8inf); | |
126 | if (x) { | |
c5ba2d99 | 127 | EVP_PKEY_free((EVP_PKEY *)*x); |
0f113f3e MC |
128 | *x = ret; |
129 | } | |
130 | PKCS8_PRIV_KEY_INFO_free(p8inf); | |
131 | } else if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0) { | |
132 | const EVP_PKEY_ASN1_METHOD *ameth; | |
133 | ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen); | |
134 | if (!ameth || !ameth->old_priv_decode) | |
135 | goto p8err; | |
136 | ret = d2i_PrivateKey(ameth->pkey_id, x, &p, len); | |
137 | } | |
138 | p8err: | |
139 | if (ret == NULL) | |
140 | PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, ERR_R_ASN1_LIB); | |
141 | err: | |
142 | OPENSSL_free(nm); | |
4b45c6e5 | 143 | OPENSSL_clear_free(data, len); |
0f113f3e MC |
144 | return (ret); |
145 | } | |
1241126a | 146 | |
e4263314 | 147 | int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, |
0f113f3e MC |
148 | unsigned char *kstr, int klen, |
149 | pem_password_cb *cb, void *u) | |
150 | { | |
151 | char pem_str[80]; | |
152 | if (!x->ameth || x->ameth->priv_encode) | |
153 | return PEM_write_bio_PKCS8PrivateKey(bp, x, enc, | |
154 | (char *)kstr, klen, cb, u); | |
e4263314 | 155 | |
0f113f3e MC |
156 | BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str); |
157 | return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey, | |
158 | pem_str, bp, x, enc, kstr, klen, cb, u); | |
159 | } | |
e4263314 | 160 | |
3e4585c8 | 161 | EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x) |
0f113f3e MC |
162 | { |
163 | char *nm = NULL; | |
164 | const unsigned char *p = NULL; | |
165 | unsigned char *data = NULL; | |
166 | long len; | |
167 | int slen; | |
168 | EVP_PKEY *ret = NULL; | |
db98bbc1 | 169 | |
0f113f3e MC |
170 | if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_PARAMETERS, |
171 | bp, 0, NULL)) | |
172 | return NULL; | |
173 | p = data; | |
db98bbc1 | 174 | |
0f113f3e MC |
175 | if ((slen = pem_check_suffix(nm, "PARAMETERS")) > 0) { |
176 | ret = EVP_PKEY_new(); | |
90945fa3 | 177 | if (ret == NULL) |
0f113f3e MC |
178 | goto err; |
179 | if (!EVP_PKEY_set_type_str(ret, nm, slen) | |
180 | || !ret->ameth->param_decode | |
181 | || !ret->ameth->param_decode(ret, &p, len)) { | |
182 | EVP_PKEY_free(ret); | |
183 | ret = NULL; | |
184 | goto err; | |
185 | } | |
186 | if (x) { | |
c5ba2d99 | 187 | EVP_PKEY_free((EVP_PKEY *)*x); |
0f113f3e MC |
188 | *x = ret; |
189 | } | |
190 | } | |
191 | err: | |
192 | if (ret == NULL) | |
193 | PEMerr(PEM_F_PEM_READ_BIO_PARAMETERS, ERR_R_ASN1_LIB); | |
194 | OPENSSL_free(nm); | |
195 | OPENSSL_free(data); | |
196 | return (ret); | |
197 | } | |
db98bbc1 | 198 | |
3e4585c8 | 199 | int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x) |
0f113f3e MC |
200 | { |
201 | char pem_str[80]; | |
202 | if (!x->ameth || !x->ameth->param_encode) | |
203 | return 0; | |
db98bbc1 | 204 | |
0f113f3e MC |
205 | BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str); |
206 | return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode, | |
207 | pem_str, bp, x, NULL, NULL, 0, 0, NULL); | |
208 | } | |
e4263314 | 209 | |
4b618848 | 210 | #ifndef OPENSSL_NO_STDIO |
0f113f3e MC |
211 | EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, |
212 | void *u) | |
213 | { | |
214 | BIO *b; | |
215 | EVP_PKEY *ret; | |
1241126a | 216 | |
0f113f3e MC |
217 | if ((b = BIO_new(BIO_s_file())) == NULL) { |
218 | PEMerr(PEM_F_PEM_READ_PRIVATEKEY, ERR_R_BUF_LIB); | |
219 | return (0); | |
220 | } | |
221 | BIO_set_fp(b, fp, BIO_NOCLOSE); | |
222 | ret = PEM_read_bio_PrivateKey(b, x, cb, u); | |
223 | BIO_free(b); | |
224 | return (ret); | |
225 | } | |
e4263314 DSH |
226 | |
227 | int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, | |
0f113f3e MC |
228 | unsigned char *kstr, int klen, |
229 | pem_password_cb *cb, void *u) | |
230 | { | |
231 | BIO *b; | |
232 | int ret; | |
e4263314 | 233 | |
0f113f3e MC |
234 | if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) { |
235 | PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB); | |
236 | return 0; | |
237 | } | |
238 | ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u); | |
239 | BIO_free(b); | |
240 | return ret; | |
241 | } | |
e4263314 | 242 | |
1241126a | 243 | #endif |
2ca873e8 DSH |
244 | |
245 | #ifndef OPENSSL_NO_DH | |
246 | ||
247 | /* Transparently read in PKCS#3 or X9.42 DH parameters */ | |
248 | ||
249 | DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u) | |
0f113f3e MC |
250 | { |
251 | char *nm = NULL; | |
252 | const unsigned char *p = NULL; | |
253 | unsigned char *data = NULL; | |
254 | long len; | |
255 | DH *ret = NULL; | |
2ca873e8 | 256 | |
0f113f3e MC |
257 | if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_DHPARAMS, bp, cb, u)) |
258 | return NULL; | |
259 | p = data; | |
2ca873e8 | 260 | |
86885c28 | 261 | if (strcmp(nm, PEM_STRING_DHXPARAMS) == 0) |
0f113f3e MC |
262 | ret = d2i_DHxparams(x, &p, len); |
263 | else | |
264 | ret = d2i_DHparams(x, &p, len); | |
2ca873e8 | 265 | |
0f113f3e MC |
266 | if (ret == NULL) |
267 | PEMerr(PEM_F_PEM_READ_BIO_DHPARAMS, ERR_R_ASN1_LIB); | |
268 | OPENSSL_free(nm); | |
269 | OPENSSL_free(data); | |
270 | return ret; | |
271 | } | |
2ca873e8 | 272 | |
0f113f3e | 273 | # ifndef OPENSSL_NO_STDIO |
2ca873e8 | 274 | DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u) |
0f113f3e MC |
275 | { |
276 | BIO *b; | |
277 | DH *ret; | |
2ca873e8 | 278 | |
0f113f3e MC |
279 | if ((b = BIO_new(BIO_s_file())) == NULL) { |
280 | PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB); | |
281 | return (0); | |
282 | } | |
283 | BIO_set_fp(b, fp, BIO_NOCLOSE); | |
284 | ret = PEM_read_bio_DHparams(b, x, cb, u); | |
285 | BIO_free(b); | |
286 | return (ret); | |
287 | } | |
288 | # endif | |
2ca873e8 DSH |
289 | |
290 | #endif |