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Commit | Line | Data |
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b1322259 | 1 | /* |
33388b44 | 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
3e4b43b9 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
b1322259 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 RE |
8 | */ |
9 | ||
f41ac0ee P |
10 | /* |
11 | * DSA low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
d02b48c6 | 16 | #include <stdio.h> |
b39fc560 | 17 | #include "internal/cryptlib.h" |
9d6b1ce6 | 18 | #include <openssl/asn1t.h> |
f0e8ae72 | 19 | #include <openssl/x509.h> |
25f2138b DMSP |
20 | #include "crypto/asn1.h" |
21 | #include "crypto/evp.h" | |
22 | #include "crypto/x509.h" | |
3c27208f RS |
23 | #include <openssl/rsa.h> |
24 | #include <openssl/dsa.h> | |
ece9304c | 25 | #include <openssl/encoder.h> |
97bb8dff | 26 | #include "internal/provider.h" |
d02b48c6 | 27 | |
29fa0a1a DSH |
28 | struct X509_pubkey_st { |
29 | X509_ALGOR *algor; | |
30 | ASN1_BIT_STRING *public_key; | |
31 | EVP_PKEY *pkey; | |
22b81444 RL |
32 | |
33 | /* extra data for the callback, used by d2i_PUBKEY_ex */ | |
34 | OPENSSL_CTX *libctx; | |
35 | const char *propq; | |
29fa0a1a DSH |
36 | }; |
37 | ||
7674e923 | 38 | static int x509_pubkey_decode(EVP_PKEY **pk, const X509_PUBKEY *key); |
fa0a9d71 | 39 | |
9d6b1ce6 | 40 | /* Minor tweak to operation: free up EVP_PKEY */ |
24484759 | 41 | static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
0f113f3e MC |
42 | void *exarg) |
43 | { | |
66066e1b DDO |
44 | X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; |
45 | ||
0f113f3e | 46 | if (operation == ASN1_OP_FREE_POST) { |
0f113f3e | 47 | EVP_PKEY_free(pubkey->pkey); |
d2ec189f DSH |
48 | } else if (operation == ASN1_OP_D2I_POST) { |
49 | /* Attempt to decode public key and cache in pubkey structure. */ | |
d2ec189f | 50 | EVP_PKEY_free(pubkey->pkey); |
5dc40a83 | 51 | pubkey->pkey = NULL; |
d2ec189f | 52 | /* |
fa0a9d71 DSH |
53 | * Opportunistically decode the key but remove any non fatal errors |
54 | * from the queue. Subsequent explicit attempts to decode/use the key | |
55 | * will return an appropriate error. | |
d2ec189f DSH |
56 | */ |
57 | ERR_set_mark(); | |
66066e1b DDO |
58 | if (x509_pubkey_decode(&pubkey->pkey, pubkey) == -1) { |
59 | ERR_clear_last_mark(); | |
fa0a9d71 | 60 | return 0; |
66066e1b | 61 | } |
d2ec189f | 62 | ERR_pop_to_mark(); |
0f113f3e MC |
63 | } |
64 | return 1; | |
65 | } | |
d02b48c6 | 66 | |
9d6b1ce6 | 67 | ASN1_SEQUENCE_cb(X509_PUBKEY, pubkey_cb) = { |
0f113f3e MC |
68 | ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR), |
69 | ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING) | |
d339187b | 70 | } ASN1_SEQUENCE_END_cb(X509_PUBKEY, X509_PUBKEY) |
d02b48c6 | 71 | |
9d6b1ce6 | 72 | IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY) |
a8f1aabd | 73 | IMPLEMENT_ASN1_DUP_FUNCTION(X509_PUBKEY) |
d02b48c6 | 74 | |
9fdcc21f | 75 | /* TODO should better be called X509_PUBKEY_set1 */ |
6b691a5c | 76 | int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey) |
0f113f3e MC |
77 | { |
78 | X509_PUBKEY *pk = NULL; | |
79 | ||
80 | if (x == NULL) | |
26a7d938 | 81 | return 0; |
0f113f3e | 82 | |
e56ba0e1 RL |
83 | if (pkey == NULL) |
84 | goto unsupported; | |
0f113f3e | 85 | |
e56ba0e1 RL |
86 | if (pkey->ameth != NULL) { |
87 | if ((pk = X509_PUBKEY_new()) == NULL) { | |
88 | X509err(X509_F_X509_PUBKEY_SET, ERR_R_MALLOC_FAILURE); | |
89 | goto error; | |
90 | } | |
91 | if (pkey->ameth->pub_encode != NULL) { | |
0f113f3e MC |
92 | if (!pkey->ameth->pub_encode(pk, pkey)) { |
93 | X509err(X509_F_X509_PUBKEY_SET, | |
94 | X509_R_PUBLIC_KEY_ENCODE_ERROR); | |
95 | goto error; | |
96 | } | |
97 | } else { | |
98 | X509err(X509_F_X509_PUBKEY_SET, X509_R_METHOD_NOT_SUPPORTED); | |
99 | goto error; | |
100 | } | |
3c6ed955 | 101 | } else if (pkey->keymgmt != NULL) { |
97bb8dff RL |
102 | const OSSL_PROVIDER *pkprov = EVP_KEYMGMT_provider(pkey->keymgmt); |
103 | OPENSSL_CTX *libctx = ossl_provider_library_context(pkprov); | |
e56ba0e1 | 104 | BIO *bmem = BIO_new(BIO_s_mem()); |
97bb8dff RL |
105 | int selection = (OSSL_KEYMGMT_SELECT_PUBLIC_KEY |
106 | | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS); | |
ece9304c | 107 | OSSL_ENCODER_CTX *ectx = |
97bb8dff RL |
108 | OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, "DER", selection, |
109 | libctx, NULL); | |
e56ba0e1 | 110 | |
ece9304c | 111 | if (OSSL_ENCODER_to_bio(ectx, bmem)) { |
e56ba0e1 RL |
112 | const unsigned char *der = NULL; |
113 | long derlen = BIO_get_mem_data(bmem, (char **)&der); | |
114 | ||
115 | pk = d2i_X509_PUBKEY(NULL, &der, derlen); | |
116 | } | |
117 | ||
ece9304c | 118 | OSSL_ENCODER_CTX_free(ectx); |
e56ba0e1 | 119 | BIO_free(bmem); |
0f113f3e MC |
120 | } |
121 | ||
e56ba0e1 RL |
122 | if (pk == NULL) |
123 | goto unsupported; | |
124 | ||
222561fe | 125 | X509_PUBKEY_free(*x); |
e56ba0e1 RL |
126 | if (!EVP_PKEY_up_ref(pkey)) { |
127 | X509err(X509_F_X509_PUBKEY_SET, ERR_R_INTERNAL_ERROR); | |
128 | goto error; | |
129 | } | |
0f113f3e | 130 | *x = pk; |
a076951b RL |
131 | |
132 | /* | |
133 | * pk->pkey is NULL when using the legacy routine, but is non-NULL when | |
ece9304c | 134 | * going through the encoder, and for all intents and purposes, it's |
a076951b RL |
135 | * a perfect copy of |pkey|, just not the same instance. In that case, |
136 | * we could simply return early, right here. | |
137 | * However, in the interest of being cautious leaning on paranoia, some | |
138 | * application might very well depend on the passed |pkey| being used | |
139 | * and none other, so we spend a few more cycles throwing away the newly | |
140 | * created |pk->pkey| and replace it with |pkey|. | |
141 | * TODO(3.0) Investigate if it's safe to change to simply return here | |
142 | * if |pk->pkey != NULL|. | |
143 | */ | |
144 | if (pk->pkey != NULL) | |
145 | EVP_PKEY_free(pk->pkey); | |
146 | ||
fa0a9d71 | 147 | pk->pkey = pkey; |
e56ba0e1 RL |
148 | return 1; |
149 | ||
150 | unsupported: | |
151 | X509err(X509_F_X509_PUBKEY_SET, X509_R_UNSUPPORTED_ALGORITHM); | |
222561fe | 152 | |
0f113f3e | 153 | error: |
222561fe | 154 | X509_PUBKEY_free(pk); |
0f113f3e MC |
155 | return 0; |
156 | } | |
d02b48c6 | 157 | |
fa0a9d71 DSH |
158 | /* |
159 | * Attempt to decode a public key. | |
160 | * Returns 1 on success, 0 for a decode failure and -1 for a fatal | |
161 | * error e.g. malloc failure. | |
162 | */ | |
0f113f3e | 163 | |
0f113f3e | 164 | |
7674e923 | 165 | static int x509_pubkey_decode(EVP_PKEY **ppkey, const X509_PUBKEY *key) |
7fcdbd83 | 166 | { |
fa0a9d71 | 167 | EVP_PKEY *pkey = EVP_PKEY_new(); |
0f113f3e | 168 | |
fa0a9d71 DSH |
169 | if (pkey == NULL) { |
170 | X509err(X509_F_X509_PUBKEY_DECODE, ERR_R_MALLOC_FAILURE); | |
171 | return -1; | |
0f113f3e MC |
172 | } |
173 | ||
fa0a9d71 DSH |
174 | if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(key->algor->algorithm))) { |
175 | X509err(X509_F_X509_PUBKEY_DECODE, X509_R_UNSUPPORTED_ALGORITHM); | |
0f113f3e MC |
176 | goto error; |
177 | } | |
178 | ||
fa0a9d71 DSH |
179 | if (pkey->ameth->pub_decode) { |
180 | /* | |
181 | * Treat any failure of pub_decode as a decode error. In | |
182 | * future we could have different return codes for decode | |
183 | * errors and fatal errors such as malloc failure. | |
184 | */ | |
66066e1b | 185 | if (!pkey->ameth->pub_decode(pkey, key)) |
0f113f3e | 186 | goto error; |
0f113f3e | 187 | } else { |
fa0a9d71 | 188 | X509err(X509_F_X509_PUBKEY_DECODE, X509_R_METHOD_NOT_SUPPORTED); |
0f113f3e MC |
189 | goto error; |
190 | } | |
191 | ||
fa0a9d71 DSH |
192 | *ppkey = pkey; |
193 | return 1; | |
0f113f3e MC |
194 | |
195 | error: | |
fa0a9d71 DSH |
196 | EVP_PKEY_free(pkey); |
197 | return 0; | |
198 | } | |
199 | ||
7674e923 | 200 | EVP_PKEY *X509_PUBKEY_get0(const X509_PUBKEY *key) |
fa0a9d71 DSH |
201 | { |
202 | EVP_PKEY *ret = NULL; | |
203 | ||
204 | if (key == NULL || key->public_key == NULL) | |
205 | return NULL; | |
206 | ||
207 | if (key->pkey != NULL) | |
208 | return key->pkey; | |
209 | ||
210 | /* | |
211 | * When the key ASN.1 is initially parsed an attempt is made to | |
212 | * decode the public key and cache the EVP_PKEY structure. If this | |
213 | * operation fails the cached value will be NULL. Parsing continues | |
214 | * to allow parsing of unknown key types or unsupported forms. | |
215 | * We repeat the decode operation so the appropriate errors are left | |
216 | * in the queue. | |
217 | */ | |
218 | x509_pubkey_decode(&ret, key); | |
219 | /* If decode doesn't fail something bad happened */ | |
220 | if (ret != NULL) { | |
221 | X509err(X509_F_X509_PUBKEY_GET0, ERR_R_INTERNAL_ERROR); | |
222 | EVP_PKEY_free(ret); | |
223 | } | |
224 | ||
225 | return NULL; | |
0f113f3e MC |
226 | } |
227 | ||
7674e923 | 228 | EVP_PKEY *X509_PUBKEY_get(const X509_PUBKEY *key) |
c01ff880 DSH |
229 | { |
230 | EVP_PKEY *ret = X509_PUBKEY_get0(key); | |
e9e7b5df BE |
231 | |
232 | if (ret != NULL && !EVP_PKEY_up_ref(ret)) { | |
233 | X509err(X509_F_X509_PUBKEY_GET, ERR_R_INTERNAL_ERROR); | |
234 | ret = NULL; | |
235 | } | |
c01ff880 DSH |
236 | return ret; |
237 | } | |
238 | ||
0f113f3e | 239 | /* |
22b81444 RL |
240 | * Now three pseudo ASN1 routines that take an EVP_PKEY structure and encode |
241 | * or decode as X509_PUBKEY | |
52664f50 DSH |
242 | */ |
243 | ||
22b81444 RL |
244 | EVP_PKEY *d2i_PUBKEY_ex(EVP_PKEY **a, const unsigned char **pp, long length, |
245 | OPENSSL_CTX *libctx, const char *propq) | |
0f113f3e | 246 | { |
22b81444 RL |
247 | X509_PUBKEY *xpk, *xpk2 = NULL, **pxpk = NULL; |
248 | EVP_PKEY *pktmp = NULL; | |
a46c9789 | 249 | const unsigned char *q; |
12a765a5 | 250 | |
a46c9789 | 251 | q = *pp; |
22b81444 RL |
252 | |
253 | /* | |
254 | * If libctx or propq are non-NULL, we take advantage of the reuse | |
255 | * feature. It's not generally recommended, but is safe enough for | |
256 | * newly created structures. | |
257 | */ | |
258 | if (libctx != NULL || propq != NULL) { | |
259 | xpk2 = OPENSSL_zalloc(sizeof(*xpk2)); | |
260 | if (xpk2 == NULL) { | |
261 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); | |
262 | return NULL; | |
263 | } | |
264 | xpk2->libctx = libctx; | |
265 | xpk2->propq = propq; | |
266 | pxpk = &xpk2; | |
267 | } | |
268 | xpk = d2i_X509_PUBKEY(pxpk, &q, length); | |
12a765a5 | 269 | if (xpk == NULL) |
22b81444 | 270 | goto end; |
0f113f3e MC |
271 | pktmp = X509_PUBKEY_get(xpk); |
272 | X509_PUBKEY_free(xpk); | |
22b81444 | 273 | xpk2 = NULL; /* We know that xpk == xpk2 */ |
12a765a5 | 274 | if (pktmp == NULL) |
22b81444 | 275 | goto end; |
a46c9789 | 276 | *pp = q; |
12a765a5 | 277 | if (a != NULL) { |
0f113f3e MC |
278 | EVP_PKEY_free(*a); |
279 | *a = pktmp; | |
280 | } | |
22b81444 RL |
281 | end: |
282 | X509_PUBKEY_free(xpk2); | |
0f113f3e MC |
283 | return pktmp; |
284 | } | |
52664f50 | 285 | |
22b81444 RL |
286 | EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp, long length) |
287 | { | |
288 | return d2i_PUBKEY_ex(a, pp, length, NULL, NULL); | |
289 | } | |
290 | ||
9fdcc21f | 291 | int i2d_PUBKEY(const EVP_PKEY *a, unsigned char **pp) |
0f113f3e | 292 | { |
9fdcc21f DO |
293 | int ret = -1; |
294 | ||
295 | if (a == NULL) | |
0f113f3e | 296 | return 0; |
cdb16632 RL |
297 | if (a->ameth != NULL) { |
298 | X509_PUBKEY *xpk = NULL; | |
299 | ||
300 | if ((xpk = X509_PUBKEY_new()) == NULL) | |
301 | return -1; | |
302 | ||
303 | /* pub_encode() only encode parameters, not the key itself */ | |
304 | if (a->ameth->pub_encode != NULL && a->ameth->pub_encode(xpk, a)) { | |
305 | xpk->pkey = (EVP_PKEY *)a; | |
306 | ret = i2d_X509_PUBKEY(xpk, pp); | |
307 | xpk->pkey = NULL; | |
308 | } | |
309 | X509_PUBKEY_free(xpk); | |
3c6ed955 | 310 | } else if (a->keymgmt != NULL) { |
97bb8dff RL |
311 | const OSSL_PROVIDER *pkprov = EVP_KEYMGMT_provider(a->keymgmt); |
312 | OPENSSL_CTX *libctx = ossl_provider_library_context(pkprov); | |
313 | int selection = (OSSL_KEYMGMT_SELECT_PUBLIC_KEY | |
314 | | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS); | |
ece9304c | 315 | OSSL_ENCODER_CTX *ctx = |
97bb8dff | 316 | OSSL_ENCODER_CTX_new_by_EVP_PKEY(a, "DER", selection, libctx, NULL); |
cdb16632 RL |
317 | BIO *out = BIO_new(BIO_s_mem()); |
318 | BUF_MEM *buf = NULL; | |
319 | ||
97bb8dff | 320 | if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0 |
cdb16632 | 321 | && out != NULL |
ece9304c | 322 | && OSSL_ENCODER_to_bio(ctx, out) |
cdb16632 RL |
323 | && BIO_get_mem_ptr(out, &buf) > 0) { |
324 | ret = buf->length; | |
325 | ||
326 | if (pp != NULL) { | |
327 | if (*pp == NULL) { | |
328 | *pp = (unsigned char *)buf->data; | |
329 | buf->length = 0; | |
330 | buf->data = NULL; | |
331 | } else { | |
332 | memcpy(*pp, buf->data, ret); | |
333 | *pp += ret; | |
334 | } | |
335 | } | |
336 | } | |
337 | BIO_free(out); | |
ece9304c | 338 | OSSL_ENCODER_CTX_free(ctx); |
cdb16632 RL |
339 | } |
340 | ||
0f113f3e MC |
341 | return ret; |
342 | } | |
343 | ||
344 | /* | |
345 | * The following are equivalents but which return RSA and DSA keys | |
52664f50 | 346 | */ |
cf1b7d96 | 347 | #ifndef OPENSSL_NO_RSA |
0f113f3e MC |
348 | RSA *d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp, long length) |
349 | { | |
350 | EVP_PKEY *pkey; | |
351 | RSA *key; | |
352 | const unsigned char *q; | |
12a765a5 | 353 | |
0f113f3e MC |
354 | q = *pp; |
355 | pkey = d2i_PUBKEY(NULL, &q, length); | |
12a765a5 | 356 | if (pkey == NULL) |
0f113f3e MC |
357 | return NULL; |
358 | key = EVP_PKEY_get1_RSA(pkey); | |
359 | EVP_PKEY_free(pkey); | |
12a765a5 | 360 | if (key == NULL) |
0f113f3e MC |
361 | return NULL; |
362 | *pp = q; | |
12a765a5 | 363 | if (a != NULL) { |
0f113f3e MC |
364 | RSA_free(*a); |
365 | *a = key; | |
366 | } | |
367 | return key; | |
368 | } | |
52664f50 | 369 | |
9fdcc21f | 370 | int i2d_RSA_PUBKEY(const RSA *a, unsigned char **pp) |
0f113f3e MC |
371 | { |
372 | EVP_PKEY *pktmp; | |
373 | int ret; | |
374 | if (!a) | |
375 | return 0; | |
376 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 377 | if (pktmp == NULL) { |
0f113f3e | 378 | ASN1err(ASN1_F_I2D_RSA_PUBKEY, ERR_R_MALLOC_FAILURE); |
157997f0 | 379 | return -1; |
0f113f3e | 380 | } |
9fdcc21f | 381 | (void)EVP_PKEY_assign_RSA(pktmp, (RSA *)a); |
0f113f3e | 382 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 383 | pktmp->pkey.ptr = NULL; |
0f113f3e MC |
384 | EVP_PKEY_free(pktmp); |
385 | return ret; | |
386 | } | |
12aefe78 | 387 | #endif |
52664f50 | 388 | |
cf1b7d96 | 389 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
390 | DSA *d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp, long length) |
391 | { | |
392 | EVP_PKEY *pkey; | |
393 | DSA *key; | |
394 | const unsigned char *q; | |
12a765a5 | 395 | |
0f113f3e MC |
396 | q = *pp; |
397 | pkey = d2i_PUBKEY(NULL, &q, length); | |
12a765a5 | 398 | if (pkey == NULL) |
0f113f3e MC |
399 | return NULL; |
400 | key = EVP_PKEY_get1_DSA(pkey); | |
401 | EVP_PKEY_free(pkey); | |
12a765a5 | 402 | if (key == NULL) |
0f113f3e MC |
403 | return NULL; |
404 | *pp = q; | |
12a765a5 | 405 | if (a != NULL) { |
0f113f3e MC |
406 | DSA_free(*a); |
407 | *a = key; | |
408 | } | |
409 | return key; | |
410 | } | |
52664f50 | 411 | |
9fdcc21f | 412 | int i2d_DSA_PUBKEY(const DSA *a, unsigned char **pp) |
0f113f3e MC |
413 | { |
414 | EVP_PKEY *pktmp; | |
415 | int ret; | |
416 | if (!a) | |
417 | return 0; | |
418 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 419 | if (pktmp == NULL) { |
0f113f3e | 420 | ASN1err(ASN1_F_I2D_DSA_PUBKEY, ERR_R_MALLOC_FAILURE); |
157997f0 | 421 | return -1; |
0f113f3e | 422 | } |
9fdcc21f | 423 | (void)EVP_PKEY_assign_DSA(pktmp, (DSA *)a); |
0f113f3e | 424 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 425 | pktmp->pkey.ptr = NULL; |
0f113f3e MC |
426 | EVP_PKEY_free(pktmp); |
427 | return ret; | |
428 | } | |
4d94ae00 BM |
429 | #endif |
430 | ||
14a7cfb3 | 431 | #ifndef OPENSSL_NO_EC |
6343829a | 432 | EC_KEY *d2i_EC_PUBKEY(EC_KEY **a, const unsigned char **pp, long length) |
0f113f3e MC |
433 | { |
434 | EVP_PKEY *pkey; | |
435 | EC_KEY *key; | |
436 | const unsigned char *q; | |
12a765a5 | 437 | |
0f113f3e MC |
438 | q = *pp; |
439 | pkey = d2i_PUBKEY(NULL, &q, length); | |
12a765a5 | 440 | if (pkey == NULL) |
26a7d938 | 441 | return NULL; |
0f113f3e MC |
442 | key = EVP_PKEY_get1_EC_KEY(pkey); |
443 | EVP_PKEY_free(pkey); | |
12a765a5 | 444 | if (key == NULL) |
26a7d938 | 445 | return NULL; |
0f113f3e | 446 | *pp = q; |
12a765a5 | 447 | if (a != NULL) { |
0f113f3e MC |
448 | EC_KEY_free(*a); |
449 | *a = key; | |
450 | } | |
26a7d938 | 451 | return key; |
0f113f3e | 452 | } |
4d94ae00 | 453 | |
9fdcc21f | 454 | int i2d_EC_PUBKEY(const EC_KEY *a, unsigned char **pp) |
0f113f3e MC |
455 | { |
456 | EVP_PKEY *pktmp; | |
457 | int ret; | |
12a765a5 RS |
458 | |
459 | if (a == NULL) | |
26a7d938 | 460 | return 0; |
0f113f3e MC |
461 | if ((pktmp = EVP_PKEY_new()) == NULL) { |
462 | ASN1err(ASN1_F_I2D_EC_PUBKEY, ERR_R_MALLOC_FAILURE); | |
157997f0 | 463 | return -1; |
0f113f3e | 464 | } |
9fdcc21f | 465 | (void)EVP_PKEY_assign_EC_KEY(pktmp, (EC_KEY *)a); |
0f113f3e | 466 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 467 | pktmp->pkey.ptr = NULL; |
0f113f3e | 468 | EVP_PKEY_free(pktmp); |
26a7d938 | 469 | return ret; |
0f113f3e | 470 | } |
12aefe78 | 471 | #endif |
448be743 DSH |
472 | |
473 | int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, | |
0f113f3e MC |
474 | int ptype, void *pval, |
475 | unsigned char *penc, int penclen) | |
476 | { | |
477 | if (!X509_ALGOR_set0(pub->algor, aobj, ptype, pval)) | |
478 | return 0; | |
479 | if (penc) { | |
b548a1f1 | 480 | OPENSSL_free(pub->public_key->data); |
0f113f3e MC |
481 | pub->public_key->data = penc; |
482 | pub->public_key->length = penclen; | |
483 | /* Set number of unused bits to zero */ | |
484 | pub->public_key->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); | |
485 | pub->public_key->flags |= ASN1_STRING_FLAG_BITS_LEFT; | |
486 | } | |
487 | return 1; | |
488 | } | |
448be743 DSH |
489 | |
490 | int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, | |
0f113f3e | 491 | const unsigned char **pk, int *ppklen, |
7674e923 | 492 | X509_ALGOR **pa, const X509_PUBKEY *pub) |
0f113f3e MC |
493 | { |
494 | if (ppkalg) | |
495 | *ppkalg = pub->algor->algorithm; | |
496 | if (pk) { | |
497 | *pk = pub->public_key->data; | |
498 | *ppklen = pub->public_key->length; | |
499 | } | |
500 | if (pa) | |
501 | *pa = pub->algor; | |
502 | return 1; | |
503 | } | |
29fa0a1a DSH |
504 | |
505 | ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x) | |
506 | { | |
507 | if (x == NULL) | |
508 | return NULL; | |
509 | return x->cert_info.key->public_key; | |
510 | } | |
93f99b68 DDO |
511 | |
512 | /* Returns 1 for equal, 0, for non-equal, < 0 on error */ | |
513 | int X509_PUBKEY_eq(const X509_PUBKEY *a, const X509_PUBKEY *b) | |
514 | { | |
515 | X509_ALGOR *algA, *algB; | |
516 | EVP_PKEY *pA, *pB; | |
517 | ||
518 | if (a == b) | |
519 | return 1; | |
520 | if (a == NULL || b == NULL) | |
521 | return 0; | |
522 | if (!X509_PUBKEY_get0_param(NULL, NULL, NULL, &algA, a) || algA == NULL | |
523 | || !X509_PUBKEY_get0_param(NULL, NULL, NULL, &algB, b) || algB == NULL) | |
524 | return -2; | |
525 | if (X509_ALGOR_cmp(algA, algB) != 0) | |
526 | return 0; | |
527 | if ((pA = X509_PUBKEY_get0(a)) == NULL | |
528 | || (pB = X509_PUBKEY_get0(b)) == NULL) | |
529 | return -2; | |
c74aaa39 | 530 | return EVP_PKEY_eq(pA, pB); |
93f99b68 | 531 | } |
22b81444 RL |
532 | |
533 | int X509_PUBKEY_get0_libctx(OPENSSL_CTX **plibctx, const char **ppropq, | |
534 | const X509_PUBKEY *key) | |
535 | { | |
536 | if (plibctx) | |
537 | *plibctx = key->libctx; | |
538 | if (ppropq) | |
539 | *ppropq = key->propq; | |
540 | return 1; | |
541 | } |