]>
Commit | Line | Data |
---|---|---|
58964a49 | 1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
2 | * All rights reserved. |
3 | * | |
4 | * This package is an SSL implementation written | |
5 | * by Eric Young (eay@cryptsoft.com). | |
6 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 7 | * |
d02b48c6 RE |
8 | * This library is free for commercial and non-commercial use as long as |
9 | * the following conditions are aheared to. The following conditions | |
10 | * apply to all code found in this distribution, be it the RC4, RSA, | |
11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
12 | * included with this distribution is covered by the same copyright terms | |
13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 14 | * |
d02b48c6 RE |
15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
16 | * the code are not to be removed. | |
17 | * If this package is used in a product, Eric Young should be given attribution | |
18 | * as the author of the parts of the library used. | |
19 | * This can be in the form of a textual message at program startup or | |
20 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 21 | * |
d02b48c6 RE |
22 | * Redistribution and use in source and binary forms, with or without |
23 | * modification, are permitted provided that the following conditions | |
24 | * are met: | |
25 | * 1. Redistributions of source code must retain the copyright | |
26 | * notice, this list of conditions and the following disclaimer. | |
27 | * 2. Redistributions in binary form must reproduce the above copyright | |
28 | * notice, this list of conditions and the following disclaimer in the | |
29 | * documentation and/or other materials provided with the distribution. | |
30 | * 3. All advertising materials mentioning features or use of this software | |
31 | * must display the following acknowledgement: | |
32 | * "This product includes cryptographic software written by | |
33 | * Eric Young (eay@cryptsoft.com)" | |
34 | * The word 'cryptographic' can be left out if the rouines from the library | |
35 | * being used are not cryptographic related :-). | |
0f113f3e | 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
37 | * the apps directory (application code) you must include an acknowledgement: |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 39 | * |
d02b48c6 RE |
40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
0f113f3e | 51 | * |
d02b48c6 RE |
52 | * The licence and distribution terms for any publically available version or |
53 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
54 | * copied and put under another distribution licence | |
55 | * [including the GNU Public Licence.] | |
56 | */ | |
57 | ||
58 | #include <stdio.h> | |
b39fc560 | 59 | #include "internal/cryptlib.h" |
9d6b1ce6 | 60 | #include <openssl/asn1t.h> |
f0e8ae72 | 61 | #include <openssl/x509.h> |
5fe736e5 | 62 | #include "internal/asn1_int.h" |
3aeb9348 | 63 | #include "internal/evp_int.h" |
3c27208f RS |
64 | #include <openssl/rsa.h> |
65 | #include <openssl/dsa.h> | |
d02b48c6 | 66 | |
9d6b1ce6 | 67 | /* Minor tweak to operation: free up EVP_PKEY */ |
24484759 | 68 | static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
0f113f3e MC |
69 | void *exarg) |
70 | { | |
03273d61 AG |
71 | if (operation == ASN1_OP_NEW_POST) { |
72 | X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; | |
73 | pubkey->lock = CRYPTO_THREAD_lock_new(); | |
74 | if (pubkey->lock == NULL) | |
75 | return 0; | |
76 | } | |
0f113f3e MC |
77 | if (operation == ASN1_OP_FREE_POST) { |
78 | X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; | |
03273d61 | 79 | CRYPTO_THREAD_lock_free(pubkey->lock); |
0f113f3e MC |
80 | EVP_PKEY_free(pubkey->pkey); |
81 | } | |
82 | return 1; | |
83 | } | |
d02b48c6 | 84 | |
9d6b1ce6 | 85 | ASN1_SEQUENCE_cb(X509_PUBKEY, pubkey_cb) = { |
0f113f3e MC |
86 | ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR), |
87 | ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING) | |
d339187b | 88 | } ASN1_SEQUENCE_END_cb(X509_PUBKEY, X509_PUBKEY) |
d02b48c6 | 89 | |
9d6b1ce6 | 90 | IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY) |
d02b48c6 | 91 | |
6b691a5c | 92 | int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey) |
0f113f3e MC |
93 | { |
94 | X509_PUBKEY *pk = NULL; | |
95 | ||
96 | if (x == NULL) | |
97 | return (0); | |
98 | ||
99 | if ((pk = X509_PUBKEY_new()) == NULL) | |
100 | goto error; | |
101 | ||
102 | if (pkey->ameth) { | |
103 | if (pkey->ameth->pub_encode) { | |
104 | if (!pkey->ameth->pub_encode(pk, pkey)) { | |
105 | X509err(X509_F_X509_PUBKEY_SET, | |
106 | X509_R_PUBLIC_KEY_ENCODE_ERROR); | |
107 | goto error; | |
108 | } | |
109 | } else { | |
110 | X509err(X509_F_X509_PUBKEY_SET, X509_R_METHOD_NOT_SUPPORTED); | |
111 | goto error; | |
112 | } | |
113 | } else { | |
114 | X509err(X509_F_X509_PUBKEY_SET, X509_R_UNSUPPORTED_ALGORITHM); | |
115 | goto error; | |
116 | } | |
117 | ||
222561fe | 118 | X509_PUBKEY_free(*x); |
0f113f3e | 119 | *x = pk; |
0f113f3e | 120 | return 1; |
222561fe | 121 | |
0f113f3e | 122 | error: |
222561fe | 123 | X509_PUBKEY_free(pk); |
0f113f3e MC |
124 | return 0; |
125 | } | |
d02b48c6 | 126 | |
c01ff880 | 127 | EVP_PKEY *X509_PUBKEY_get0(X509_PUBKEY *key) |
0f113f3e MC |
128 | { |
129 | EVP_PKEY *ret = NULL; | |
130 | ||
131 | if (key == NULL) | |
132 | goto error; | |
133 | ||
c01ff880 | 134 | if (key->pkey != NULL) |
0f113f3e | 135 | return key->pkey; |
0f113f3e MC |
136 | |
137 | if (key->public_key == NULL) | |
138 | goto error; | |
139 | ||
140 | if ((ret = EVP_PKEY_new()) == NULL) { | |
c01ff880 | 141 | X509err(X509_F_X509_PUBKEY_GET0, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
142 | goto error; |
143 | } | |
144 | ||
145 | if (!EVP_PKEY_set_type(ret, OBJ_obj2nid(key->algor->algorithm))) { | |
c01ff880 | 146 | X509err(X509_F_X509_PUBKEY_GET0, X509_R_UNSUPPORTED_ALGORITHM); |
0f113f3e MC |
147 | goto error; |
148 | } | |
149 | ||
150 | if (ret->ameth->pub_decode) { | |
151 | if (!ret->ameth->pub_decode(ret, key)) { | |
c01ff880 | 152 | X509err(X509_F_X509_PUBKEY_GET0, X509_R_PUBLIC_KEY_DECODE_ERROR); |
0f113f3e MC |
153 | goto error; |
154 | } | |
155 | } else { | |
c01ff880 | 156 | X509err(X509_F_X509_PUBKEY_GET0, X509_R_METHOD_NOT_SUPPORTED); |
0f113f3e MC |
157 | goto error; |
158 | } | |
159 | ||
160 | /* Check to see if another thread set key->pkey first */ | |
03273d61 | 161 | CRYPTO_THREAD_write_lock(key->lock); |
0f113f3e | 162 | if (key->pkey) { |
03273d61 | 163 | CRYPTO_THREAD_unlock(key->lock); |
0f113f3e MC |
164 | EVP_PKEY_free(ret); |
165 | ret = key->pkey; | |
166 | } else { | |
167 | key->pkey = ret; | |
03273d61 | 168 | CRYPTO_THREAD_unlock(key->lock); |
0f113f3e | 169 | } |
0f113f3e MC |
170 | |
171 | return ret; | |
172 | ||
173 | error: | |
c5ba2d99 | 174 | EVP_PKEY_free(ret); |
0f113f3e MC |
175 | return (NULL); |
176 | } | |
177 | ||
c01ff880 DSH |
178 | EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key) |
179 | { | |
180 | EVP_PKEY *ret = X509_PUBKEY_get0(key); | |
181 | if (ret != NULL) | |
182 | EVP_PKEY_up_ref(ret); | |
183 | return ret; | |
184 | } | |
185 | ||
0f113f3e MC |
186 | /* |
187 | * Now two pseudo ASN1 routines that take an EVP_PKEY structure and encode or | |
188 | * decode as X509_PUBKEY | |
52664f50 DSH |
189 | */ |
190 | ||
0f113f3e MC |
191 | EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp, long length) |
192 | { | |
193 | X509_PUBKEY *xpk; | |
194 | EVP_PKEY *pktmp; | |
a46c9789 KR |
195 | const unsigned char *q; |
196 | q = *pp; | |
197 | xpk = d2i_X509_PUBKEY(NULL, &q, length); | |
0f113f3e MC |
198 | if (!xpk) |
199 | return NULL; | |
200 | pktmp = X509_PUBKEY_get(xpk); | |
201 | X509_PUBKEY_free(xpk); | |
202 | if (!pktmp) | |
203 | return NULL; | |
a46c9789 | 204 | *pp = q; |
0f113f3e MC |
205 | if (a) { |
206 | EVP_PKEY_free(*a); | |
207 | *a = pktmp; | |
208 | } | |
209 | return pktmp; | |
210 | } | |
52664f50 DSH |
211 | |
212 | int i2d_PUBKEY(EVP_PKEY *a, unsigned char **pp) | |
0f113f3e MC |
213 | { |
214 | X509_PUBKEY *xpk = NULL; | |
215 | int ret; | |
216 | if (!a) | |
217 | return 0; | |
218 | if (!X509_PUBKEY_set(&xpk, a)) | |
219 | return 0; | |
220 | ret = i2d_X509_PUBKEY(xpk, pp); | |
221 | X509_PUBKEY_free(xpk); | |
222 | return ret; | |
223 | } | |
224 | ||
225 | /* | |
226 | * The following are equivalents but which return RSA and DSA keys | |
52664f50 | 227 | */ |
cf1b7d96 | 228 | #ifndef OPENSSL_NO_RSA |
0f113f3e MC |
229 | RSA *d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp, long length) |
230 | { | |
231 | EVP_PKEY *pkey; | |
232 | RSA *key; | |
233 | const unsigned char *q; | |
234 | q = *pp; | |
235 | pkey = d2i_PUBKEY(NULL, &q, length); | |
236 | if (!pkey) | |
237 | return NULL; | |
238 | key = EVP_PKEY_get1_RSA(pkey); | |
239 | EVP_PKEY_free(pkey); | |
240 | if (!key) | |
241 | return NULL; | |
242 | *pp = q; | |
243 | if (a) { | |
244 | RSA_free(*a); | |
245 | *a = key; | |
246 | } | |
247 | return key; | |
248 | } | |
52664f50 DSH |
249 | |
250 | int i2d_RSA_PUBKEY(RSA *a, unsigned char **pp) | |
0f113f3e MC |
251 | { |
252 | EVP_PKEY *pktmp; | |
253 | int ret; | |
254 | if (!a) | |
255 | return 0; | |
256 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 257 | if (pktmp == NULL) { |
0f113f3e MC |
258 | ASN1err(ASN1_F_I2D_RSA_PUBKEY, ERR_R_MALLOC_FAILURE); |
259 | return 0; | |
260 | } | |
261 | EVP_PKEY_set1_RSA(pktmp, a); | |
262 | ret = i2d_PUBKEY(pktmp, pp); | |
263 | EVP_PKEY_free(pktmp); | |
264 | return ret; | |
265 | } | |
12aefe78 | 266 | #endif |
52664f50 | 267 | |
cf1b7d96 | 268 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
269 | DSA *d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp, long length) |
270 | { | |
271 | EVP_PKEY *pkey; | |
272 | DSA *key; | |
273 | const unsigned char *q; | |
274 | q = *pp; | |
275 | pkey = d2i_PUBKEY(NULL, &q, length); | |
276 | if (!pkey) | |
277 | return NULL; | |
278 | key = EVP_PKEY_get1_DSA(pkey); | |
279 | EVP_PKEY_free(pkey); | |
280 | if (!key) | |
281 | return NULL; | |
282 | *pp = q; | |
283 | if (a) { | |
284 | DSA_free(*a); | |
285 | *a = key; | |
286 | } | |
287 | return key; | |
288 | } | |
52664f50 DSH |
289 | |
290 | int i2d_DSA_PUBKEY(DSA *a, unsigned char **pp) | |
0f113f3e MC |
291 | { |
292 | EVP_PKEY *pktmp; | |
293 | int ret; | |
294 | if (!a) | |
295 | return 0; | |
296 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 297 | if (pktmp == NULL) { |
0f113f3e MC |
298 | ASN1err(ASN1_F_I2D_DSA_PUBKEY, ERR_R_MALLOC_FAILURE); |
299 | return 0; | |
300 | } | |
301 | EVP_PKEY_set1_DSA(pktmp, a); | |
302 | ret = i2d_PUBKEY(pktmp, pp); | |
303 | EVP_PKEY_free(pktmp); | |
304 | return ret; | |
305 | } | |
4d94ae00 BM |
306 | #endif |
307 | ||
14a7cfb3 | 308 | #ifndef OPENSSL_NO_EC |
6343829a | 309 | EC_KEY *d2i_EC_PUBKEY(EC_KEY **a, const unsigned char **pp, long length) |
0f113f3e MC |
310 | { |
311 | EVP_PKEY *pkey; | |
312 | EC_KEY *key; | |
313 | const unsigned char *q; | |
314 | q = *pp; | |
315 | pkey = d2i_PUBKEY(NULL, &q, length); | |
316 | if (!pkey) | |
317 | return (NULL); | |
318 | key = EVP_PKEY_get1_EC_KEY(pkey); | |
319 | EVP_PKEY_free(pkey); | |
320 | if (!key) | |
321 | return (NULL); | |
322 | *pp = q; | |
323 | if (a) { | |
324 | EC_KEY_free(*a); | |
325 | *a = key; | |
326 | } | |
327 | return (key); | |
328 | } | |
4d94ae00 | 329 | |
14a7cfb3 | 330 | int i2d_EC_PUBKEY(EC_KEY *a, unsigned char **pp) |
0f113f3e MC |
331 | { |
332 | EVP_PKEY *pktmp; | |
333 | int ret; | |
334 | if (!a) | |
335 | return (0); | |
336 | if ((pktmp = EVP_PKEY_new()) == NULL) { | |
337 | ASN1err(ASN1_F_I2D_EC_PUBKEY, ERR_R_MALLOC_FAILURE); | |
338 | return (0); | |
339 | } | |
340 | EVP_PKEY_set1_EC_KEY(pktmp, a); | |
341 | ret = i2d_PUBKEY(pktmp, pp); | |
342 | EVP_PKEY_free(pktmp); | |
343 | return (ret); | |
344 | } | |
12aefe78 | 345 | #endif |
448be743 DSH |
346 | |
347 | int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, | |
0f113f3e MC |
348 | int ptype, void *pval, |
349 | unsigned char *penc, int penclen) | |
350 | { | |
351 | if (!X509_ALGOR_set0(pub->algor, aobj, ptype, pval)) | |
352 | return 0; | |
353 | if (penc) { | |
b548a1f1 | 354 | OPENSSL_free(pub->public_key->data); |
0f113f3e MC |
355 | pub->public_key->data = penc; |
356 | pub->public_key->length = penclen; | |
357 | /* Set number of unused bits to zero */ | |
358 | pub->public_key->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); | |
359 | pub->public_key->flags |= ASN1_STRING_FLAG_BITS_LEFT; | |
360 | } | |
361 | return 1; | |
362 | } | |
448be743 DSH |
363 | |
364 | int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, | |
0f113f3e MC |
365 | const unsigned char **pk, int *ppklen, |
366 | X509_ALGOR **pa, X509_PUBKEY *pub) | |
367 | { | |
368 | if (ppkalg) | |
369 | *ppkalg = pub->algor->algorithm; | |
370 | if (pk) { | |
371 | *pk = pub->public_key->data; | |
372 | *ppklen = pub->public_key->length; | |
373 | } | |
374 | if (pa) | |
375 | *pa = pub->algor; | |
376 | return 1; | |
377 | } |