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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 */ | |
b4250010 | 34 | OSSL_LIB_CTX *libctx; |
637dce3c | 35 | char *propq; |
29fa0a1a DSH |
36 | }; |
37 | ||
7674e923 | 38 | static int x509_pubkey_decode(EVP_PKEY **pk, const X509_PUBKEY *key); |
fa0a9d71 | 39 | |
637dce3c SL |
40 | static int x509_pubkey_set0_libctx(X509_PUBKEY *x, OSSL_LIB_CTX *libctx, |
41 | const char *propq) | |
42 | { | |
43 | if (x != NULL) { | |
44 | x->libctx = libctx; | |
45 | OPENSSL_free(x->propq); | |
46 | x->propq = NULL; | |
47 | if (propq != NULL) { | |
48 | x->propq = OPENSSL_strdup(propq); | |
49 | if (x->propq == NULL) | |
50 | return 0; | |
51 | } | |
52 | } | |
53 | return 1; | |
54 | } | |
55 | ||
9d6b1ce6 | 56 | /* Minor tweak to operation: free up EVP_PKEY */ |
24484759 | 57 | static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
0f113f3e MC |
58 | void *exarg) |
59 | { | |
66066e1b DDO |
60 | X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; |
61 | ||
0f113f3e | 62 | if (operation == ASN1_OP_FREE_POST) { |
637dce3c | 63 | OPENSSL_free(pubkey->propq); |
0f113f3e | 64 | EVP_PKEY_free(pubkey->pkey); |
d2ec189f DSH |
65 | } else if (operation == ASN1_OP_D2I_POST) { |
66 | /* Attempt to decode public key and cache in pubkey structure. */ | |
d2ec189f | 67 | EVP_PKEY_free(pubkey->pkey); |
5dc40a83 | 68 | pubkey->pkey = NULL; |
d2ec189f | 69 | /* |
fa0a9d71 DSH |
70 | * Opportunistically decode the key but remove any non fatal errors |
71 | * from the queue. Subsequent explicit attempts to decode/use the key | |
72 | * will return an appropriate error. | |
d2ec189f DSH |
73 | */ |
74 | ERR_set_mark(); | |
66066e1b DDO |
75 | if (x509_pubkey_decode(&pubkey->pkey, pubkey) == -1) { |
76 | ERR_clear_last_mark(); | |
fa0a9d71 | 77 | return 0; |
66066e1b | 78 | } |
d2ec189f | 79 | ERR_pop_to_mark(); |
637dce3c SL |
80 | } else if (operation == ASN1_OP_DUP_POST) { |
81 | X509_PUBKEY *old = exarg; | |
82 | ||
83 | if (!x509_pubkey_set0_libctx(pubkey, old->libctx, old->propq)) | |
84 | return 0; | |
0f113f3e MC |
85 | } |
86 | return 1; | |
87 | } | |
d02b48c6 | 88 | |
9d6b1ce6 | 89 | ASN1_SEQUENCE_cb(X509_PUBKEY, pubkey_cb) = { |
0f113f3e MC |
90 | ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR), |
91 | ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING) | |
d339187b | 92 | } ASN1_SEQUENCE_END_cb(X509_PUBKEY, X509_PUBKEY) |
d02b48c6 | 93 | |
9d6b1ce6 | 94 | IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY) |
a8f1aabd | 95 | IMPLEMENT_ASN1_DUP_FUNCTION(X509_PUBKEY) |
d02b48c6 | 96 | |
9fdcc21f | 97 | /* TODO should better be called X509_PUBKEY_set1 */ |
6b691a5c | 98 | int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey) |
0f113f3e MC |
99 | { |
100 | X509_PUBKEY *pk = NULL; | |
101 | ||
102 | if (x == NULL) | |
26a7d938 | 103 | return 0; |
0f113f3e | 104 | |
e56ba0e1 RL |
105 | if (pkey == NULL) |
106 | goto unsupported; | |
0f113f3e | 107 | |
e56ba0e1 RL |
108 | if (pkey->ameth != NULL) { |
109 | if ((pk = X509_PUBKEY_new()) == NULL) { | |
9311d0c4 | 110 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
e56ba0e1 RL |
111 | goto error; |
112 | } | |
113 | if (pkey->ameth->pub_encode != NULL) { | |
0f113f3e | 114 | if (!pkey->ameth->pub_encode(pk, pkey)) { |
9311d0c4 | 115 | ERR_raise(ERR_LIB_X509, X509_R_PUBLIC_KEY_ENCODE_ERROR); |
0f113f3e MC |
116 | goto error; |
117 | } | |
118 | } else { | |
9311d0c4 | 119 | ERR_raise(ERR_LIB_X509, X509_R_METHOD_NOT_SUPPORTED); |
0f113f3e MC |
120 | goto error; |
121 | } | |
113adc1f | 122 | } else if (evp_pkey_is_provided(pkey)) { |
113adc1f RL |
123 | unsigned char *der = NULL; |
124 | size_t derlen = 0; | |
ece9304c | 125 | OSSL_ENCODER_CTX *ectx = |
4227e504 RL |
126 | OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, EVP_PKEY_PUBLIC_KEY, |
127 | "DER", "SubjectPublicKeyInfo", | |
b03da688 | 128 | NULL); |
e56ba0e1 | 129 | |
113adc1f RL |
130 | if (OSSL_ENCODER_to_data(ectx, &der, &derlen)) { |
131 | const unsigned char *pder = der; | |
e56ba0e1 | 132 | |
113adc1f | 133 | pk = d2i_X509_PUBKEY(NULL, &pder, (long)derlen); |
e56ba0e1 RL |
134 | } |
135 | ||
ece9304c | 136 | OSSL_ENCODER_CTX_free(ectx); |
113adc1f | 137 | OPENSSL_free(der); |
0f113f3e MC |
138 | } |
139 | ||
e56ba0e1 RL |
140 | if (pk == NULL) |
141 | goto unsupported; | |
142 | ||
222561fe | 143 | X509_PUBKEY_free(*x); |
e56ba0e1 | 144 | if (!EVP_PKEY_up_ref(pkey)) { |
9311d0c4 | 145 | ERR_raise(ERR_LIB_X509, ERR_R_INTERNAL_ERROR); |
e56ba0e1 RL |
146 | goto error; |
147 | } | |
0f113f3e | 148 | *x = pk; |
a076951b RL |
149 | |
150 | /* | |
151 | * pk->pkey is NULL when using the legacy routine, but is non-NULL when | |
ece9304c | 152 | * going through the encoder, and for all intents and purposes, it's |
a076951b RL |
153 | * a perfect copy of |pkey|, just not the same instance. In that case, |
154 | * we could simply return early, right here. | |
155 | * However, in the interest of being cautious leaning on paranoia, some | |
156 | * application might very well depend on the passed |pkey| being used | |
157 | * and none other, so we spend a few more cycles throwing away the newly | |
158 | * created |pk->pkey| and replace it with |pkey|. | |
159 | * TODO(3.0) Investigate if it's safe to change to simply return here | |
160 | * if |pk->pkey != NULL|. | |
161 | */ | |
162 | if (pk->pkey != NULL) | |
163 | EVP_PKEY_free(pk->pkey); | |
164 | ||
fa0a9d71 | 165 | pk->pkey = pkey; |
e56ba0e1 RL |
166 | return 1; |
167 | ||
168 | unsupported: | |
9311d0c4 | 169 | ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM); |
222561fe | 170 | |
0f113f3e | 171 | error: |
222561fe | 172 | X509_PUBKEY_free(pk); |
0f113f3e MC |
173 | return 0; |
174 | } | |
d02b48c6 | 175 | |
fa0a9d71 DSH |
176 | /* |
177 | * Attempt to decode a public key. | |
178 | * Returns 1 on success, 0 for a decode failure and -1 for a fatal | |
179 | * error e.g. malloc failure. | |
180 | */ | |
0f113f3e | 181 | |
0f113f3e | 182 | |
7674e923 | 183 | static int x509_pubkey_decode(EVP_PKEY **ppkey, const X509_PUBKEY *key) |
7fcdbd83 | 184 | { |
fa0a9d71 | 185 | EVP_PKEY *pkey = EVP_PKEY_new(); |
0f113f3e | 186 | |
fa0a9d71 | 187 | if (pkey == NULL) { |
9311d0c4 | 188 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
fa0a9d71 | 189 | return -1; |
0f113f3e MC |
190 | } |
191 | ||
fa0a9d71 | 192 | if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(key->algor->algorithm))) { |
9311d0c4 | 193 | ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM); |
0f113f3e MC |
194 | goto error; |
195 | } | |
196 | ||
fa0a9d71 DSH |
197 | if (pkey->ameth->pub_decode) { |
198 | /* | |
199 | * Treat any failure of pub_decode as a decode error. In | |
200 | * future we could have different return codes for decode | |
201 | * errors and fatal errors such as malloc failure. | |
202 | */ | |
66066e1b | 203 | if (!pkey->ameth->pub_decode(pkey, key)) |
0f113f3e | 204 | goto error; |
0f113f3e | 205 | } else { |
9311d0c4 | 206 | ERR_raise(ERR_LIB_X509, X509_R_METHOD_NOT_SUPPORTED); |
0f113f3e MC |
207 | goto error; |
208 | } | |
209 | ||
fa0a9d71 DSH |
210 | *ppkey = pkey; |
211 | return 1; | |
0f113f3e MC |
212 | |
213 | error: | |
fa0a9d71 DSH |
214 | EVP_PKEY_free(pkey); |
215 | return 0; | |
216 | } | |
217 | ||
7674e923 | 218 | EVP_PKEY *X509_PUBKEY_get0(const X509_PUBKEY *key) |
fa0a9d71 DSH |
219 | { |
220 | EVP_PKEY *ret = NULL; | |
221 | ||
222 | if (key == NULL || key->public_key == NULL) | |
223 | return NULL; | |
224 | ||
225 | if (key->pkey != NULL) | |
226 | return key->pkey; | |
227 | ||
228 | /* | |
229 | * When the key ASN.1 is initially parsed an attempt is made to | |
230 | * decode the public key and cache the EVP_PKEY structure. If this | |
231 | * operation fails the cached value will be NULL. Parsing continues | |
232 | * to allow parsing of unknown key types or unsupported forms. | |
233 | * We repeat the decode operation so the appropriate errors are left | |
234 | * in the queue. | |
235 | */ | |
236 | x509_pubkey_decode(&ret, key); | |
237 | /* If decode doesn't fail something bad happened */ | |
238 | if (ret != NULL) { | |
9311d0c4 | 239 | ERR_raise(ERR_LIB_X509, ERR_R_INTERNAL_ERROR); |
fa0a9d71 DSH |
240 | EVP_PKEY_free(ret); |
241 | } | |
242 | ||
243 | return NULL; | |
0f113f3e MC |
244 | } |
245 | ||
7674e923 | 246 | EVP_PKEY *X509_PUBKEY_get(const X509_PUBKEY *key) |
c01ff880 DSH |
247 | { |
248 | EVP_PKEY *ret = X509_PUBKEY_get0(key); | |
e9e7b5df BE |
249 | |
250 | if (ret != NULL && !EVP_PKEY_up_ref(ret)) { | |
9311d0c4 | 251 | ERR_raise(ERR_LIB_X509, ERR_R_INTERNAL_ERROR); |
e9e7b5df BE |
252 | ret = NULL; |
253 | } | |
c01ff880 DSH |
254 | return ret; |
255 | } | |
256 | ||
0f113f3e | 257 | /* |
22b81444 RL |
258 | * Now three pseudo ASN1 routines that take an EVP_PKEY structure and encode |
259 | * or decode as X509_PUBKEY | |
52664f50 DSH |
260 | */ |
261 | ||
22b81444 | 262 | EVP_PKEY *d2i_PUBKEY_ex(EVP_PKEY **a, const unsigned char **pp, long length, |
b4250010 | 263 | OSSL_LIB_CTX *libctx, const char *propq) |
0f113f3e | 264 | { |
22b81444 RL |
265 | X509_PUBKEY *xpk, *xpk2 = NULL, **pxpk = NULL; |
266 | EVP_PKEY *pktmp = NULL; | |
a46c9789 | 267 | const unsigned char *q; |
12a765a5 | 268 | |
a46c9789 | 269 | q = *pp; |
22b81444 RL |
270 | |
271 | /* | |
272 | * If libctx or propq are non-NULL, we take advantage of the reuse | |
273 | * feature. It's not generally recommended, but is safe enough for | |
274 | * newly created structures. | |
275 | */ | |
276 | if (libctx != NULL || propq != NULL) { | |
277 | xpk2 = OPENSSL_zalloc(sizeof(*xpk2)); | |
278 | if (xpk2 == NULL) { | |
279 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); | |
280 | return NULL; | |
281 | } | |
637dce3c SL |
282 | if (!x509_pubkey_set0_libctx(xpk2, libctx, propq)) |
283 | goto end; | |
22b81444 RL |
284 | pxpk = &xpk2; |
285 | } | |
286 | xpk = d2i_X509_PUBKEY(pxpk, &q, length); | |
12a765a5 | 287 | if (xpk == NULL) |
22b81444 | 288 | goto end; |
0f113f3e MC |
289 | pktmp = X509_PUBKEY_get(xpk); |
290 | X509_PUBKEY_free(xpk); | |
22b81444 | 291 | xpk2 = NULL; /* We know that xpk == xpk2 */ |
12a765a5 | 292 | if (pktmp == NULL) |
22b81444 | 293 | goto end; |
a46c9789 | 294 | *pp = q; |
12a765a5 | 295 | if (a != NULL) { |
0f113f3e MC |
296 | EVP_PKEY_free(*a); |
297 | *a = pktmp; | |
298 | } | |
22b81444 RL |
299 | end: |
300 | X509_PUBKEY_free(xpk2); | |
0f113f3e MC |
301 | return pktmp; |
302 | } | |
52664f50 | 303 | |
22b81444 RL |
304 | EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp, long length) |
305 | { | |
306 | return d2i_PUBKEY_ex(a, pp, length, NULL, NULL); | |
307 | } | |
308 | ||
9fdcc21f | 309 | int i2d_PUBKEY(const EVP_PKEY *a, unsigned char **pp) |
0f113f3e | 310 | { |
9fdcc21f DO |
311 | int ret = -1; |
312 | ||
313 | if (a == NULL) | |
0f113f3e | 314 | return 0; |
cdb16632 RL |
315 | if (a->ameth != NULL) { |
316 | X509_PUBKEY *xpk = NULL; | |
317 | ||
318 | if ((xpk = X509_PUBKEY_new()) == NULL) | |
319 | return -1; | |
320 | ||
321 | /* pub_encode() only encode parameters, not the key itself */ | |
322 | if (a->ameth->pub_encode != NULL && a->ameth->pub_encode(xpk, a)) { | |
323 | xpk->pkey = (EVP_PKEY *)a; | |
324 | ret = i2d_X509_PUBKEY(xpk, pp); | |
325 | xpk->pkey = NULL; | |
326 | } | |
327 | X509_PUBKEY_free(xpk); | |
3c6ed955 | 328 | } else if (a->keymgmt != NULL) { |
ece9304c | 329 | OSSL_ENCODER_CTX *ctx = |
4227e504 RL |
330 | OSSL_ENCODER_CTX_new_by_EVP_PKEY(a, EVP_PKEY_PUBLIC_KEY, |
331 | "DER", "SubjectPublicKeyInfo", | |
b03da688 | 332 | NULL); |
cdb16632 RL |
333 | BIO *out = BIO_new(BIO_s_mem()); |
334 | BUF_MEM *buf = NULL; | |
335 | ||
97bb8dff | 336 | if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0 |
cdb16632 | 337 | && out != NULL |
ece9304c | 338 | && OSSL_ENCODER_to_bio(ctx, out) |
cdb16632 RL |
339 | && BIO_get_mem_ptr(out, &buf) > 0) { |
340 | ret = buf->length; | |
341 | ||
342 | if (pp != NULL) { | |
343 | if (*pp == NULL) { | |
344 | *pp = (unsigned char *)buf->data; | |
345 | buf->length = 0; | |
346 | buf->data = NULL; | |
347 | } else { | |
348 | memcpy(*pp, buf->data, ret); | |
349 | *pp += ret; | |
350 | } | |
351 | } | |
352 | } | |
353 | BIO_free(out); | |
ece9304c | 354 | OSSL_ENCODER_CTX_free(ctx); |
cdb16632 RL |
355 | } |
356 | ||
0f113f3e MC |
357 | return ret; |
358 | } | |
359 | ||
360 | /* | |
361 | * The following are equivalents but which return RSA and DSA keys | |
52664f50 | 362 | */ |
0f113f3e MC |
363 | RSA *d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp, long length) |
364 | { | |
365 | EVP_PKEY *pkey; | |
366 | RSA *key; | |
367 | const unsigned char *q; | |
12a765a5 | 368 | |
0f113f3e MC |
369 | q = *pp; |
370 | pkey = d2i_PUBKEY(NULL, &q, length); | |
12a765a5 | 371 | if (pkey == NULL) |
0f113f3e MC |
372 | return NULL; |
373 | key = EVP_PKEY_get1_RSA(pkey); | |
374 | EVP_PKEY_free(pkey); | |
12a765a5 | 375 | if (key == NULL) |
0f113f3e MC |
376 | return NULL; |
377 | *pp = q; | |
12a765a5 | 378 | if (a != NULL) { |
0f113f3e MC |
379 | RSA_free(*a); |
380 | *a = key; | |
381 | } | |
382 | return key; | |
383 | } | |
52664f50 | 384 | |
9fdcc21f | 385 | int i2d_RSA_PUBKEY(const RSA *a, unsigned char **pp) |
0f113f3e MC |
386 | { |
387 | EVP_PKEY *pktmp; | |
388 | int ret; | |
389 | if (!a) | |
390 | return 0; | |
391 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 392 | if (pktmp == NULL) { |
9311d0c4 | 393 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
157997f0 | 394 | return -1; |
0f113f3e | 395 | } |
9fdcc21f | 396 | (void)EVP_PKEY_assign_RSA(pktmp, (RSA *)a); |
0f113f3e | 397 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 398 | pktmp->pkey.ptr = NULL; |
0f113f3e MC |
399 | EVP_PKEY_free(pktmp); |
400 | return ret; | |
401 | } | |
52664f50 | 402 | |
cf1b7d96 | 403 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
404 | DSA *d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp, long length) |
405 | { | |
406 | EVP_PKEY *pkey; | |
407 | DSA *key; | |
408 | const unsigned char *q; | |
12a765a5 | 409 | |
0f113f3e MC |
410 | q = *pp; |
411 | pkey = d2i_PUBKEY(NULL, &q, length); | |
12a765a5 | 412 | if (pkey == NULL) |
0f113f3e MC |
413 | return NULL; |
414 | key = EVP_PKEY_get1_DSA(pkey); | |
415 | EVP_PKEY_free(pkey); | |
12a765a5 | 416 | if (key == NULL) |
0f113f3e MC |
417 | return NULL; |
418 | *pp = q; | |
12a765a5 | 419 | if (a != NULL) { |
0f113f3e MC |
420 | DSA_free(*a); |
421 | *a = key; | |
422 | } | |
423 | return key; | |
424 | } | |
52664f50 | 425 | |
9fdcc21f | 426 | int i2d_DSA_PUBKEY(const DSA *a, unsigned char **pp) |
0f113f3e MC |
427 | { |
428 | EVP_PKEY *pktmp; | |
429 | int ret; | |
430 | if (!a) | |
431 | return 0; | |
432 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 433 | if (pktmp == NULL) { |
9311d0c4 | 434 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
157997f0 | 435 | return -1; |
0f113f3e | 436 | } |
9fdcc21f | 437 | (void)EVP_PKEY_assign_DSA(pktmp, (DSA *)a); |
0f113f3e | 438 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 439 | pktmp->pkey.ptr = NULL; |
0f113f3e MC |
440 | EVP_PKEY_free(pktmp); |
441 | return ret; | |
442 | } | |
4d94ae00 BM |
443 | #endif |
444 | ||
14a7cfb3 | 445 | #ifndef OPENSSL_NO_EC |
6343829a | 446 | EC_KEY *d2i_EC_PUBKEY(EC_KEY **a, const unsigned char **pp, long length) |
0f113f3e MC |
447 | { |
448 | EVP_PKEY *pkey; | |
449 | EC_KEY *key; | |
450 | const unsigned char *q; | |
12a765a5 | 451 | |
0f113f3e MC |
452 | q = *pp; |
453 | pkey = d2i_PUBKEY(NULL, &q, length); | |
12a765a5 | 454 | if (pkey == NULL) |
26a7d938 | 455 | return NULL; |
0f113f3e MC |
456 | key = EVP_PKEY_get1_EC_KEY(pkey); |
457 | EVP_PKEY_free(pkey); | |
12a765a5 | 458 | if (key == NULL) |
26a7d938 | 459 | return NULL; |
0f113f3e | 460 | *pp = q; |
12a765a5 | 461 | if (a != NULL) { |
0f113f3e MC |
462 | EC_KEY_free(*a); |
463 | *a = key; | |
464 | } | |
26a7d938 | 465 | return key; |
0f113f3e | 466 | } |
4d94ae00 | 467 | |
9fdcc21f | 468 | int i2d_EC_PUBKEY(const EC_KEY *a, unsigned char **pp) |
0f113f3e MC |
469 | { |
470 | EVP_PKEY *pktmp; | |
471 | int ret; | |
12a765a5 RS |
472 | |
473 | if (a == NULL) | |
26a7d938 | 474 | return 0; |
0f113f3e | 475 | if ((pktmp = EVP_PKEY_new()) == NULL) { |
9311d0c4 | 476 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
157997f0 | 477 | return -1; |
0f113f3e | 478 | } |
9fdcc21f | 479 | (void)EVP_PKEY_assign_EC_KEY(pktmp, (EC_KEY *)a); |
0f113f3e | 480 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 481 | pktmp->pkey.ptr = NULL; |
0f113f3e | 482 | EVP_PKEY_free(pktmp); |
26a7d938 | 483 | return ret; |
0f113f3e | 484 | } |
12aefe78 | 485 | #endif |
448be743 DSH |
486 | |
487 | int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, | |
0f113f3e MC |
488 | int ptype, void *pval, |
489 | unsigned char *penc, int penclen) | |
490 | { | |
491 | if (!X509_ALGOR_set0(pub->algor, aobj, ptype, pval)) | |
492 | return 0; | |
493 | if (penc) { | |
b548a1f1 | 494 | OPENSSL_free(pub->public_key->data); |
0f113f3e MC |
495 | pub->public_key->data = penc; |
496 | pub->public_key->length = penclen; | |
497 | /* Set number of unused bits to zero */ | |
498 | pub->public_key->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); | |
499 | pub->public_key->flags |= ASN1_STRING_FLAG_BITS_LEFT; | |
500 | } | |
501 | return 1; | |
502 | } | |
448be743 DSH |
503 | |
504 | int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, | |
0f113f3e | 505 | const unsigned char **pk, int *ppklen, |
7674e923 | 506 | X509_ALGOR **pa, const X509_PUBKEY *pub) |
0f113f3e MC |
507 | { |
508 | if (ppkalg) | |
509 | *ppkalg = pub->algor->algorithm; | |
510 | if (pk) { | |
511 | *pk = pub->public_key->data; | |
512 | *ppklen = pub->public_key->length; | |
513 | } | |
514 | if (pa) | |
515 | *pa = pub->algor; | |
516 | return 1; | |
517 | } | |
29fa0a1a DSH |
518 | |
519 | ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x) | |
520 | { | |
521 | if (x == NULL) | |
522 | return NULL; | |
523 | return x->cert_info.key->public_key; | |
524 | } | |
93f99b68 DDO |
525 | |
526 | /* Returns 1 for equal, 0, for non-equal, < 0 on error */ | |
527 | int X509_PUBKEY_eq(const X509_PUBKEY *a, const X509_PUBKEY *b) | |
528 | { | |
529 | X509_ALGOR *algA, *algB; | |
530 | EVP_PKEY *pA, *pB; | |
531 | ||
532 | if (a == b) | |
533 | return 1; | |
534 | if (a == NULL || b == NULL) | |
535 | return 0; | |
536 | if (!X509_PUBKEY_get0_param(NULL, NULL, NULL, &algA, a) || algA == NULL | |
537 | || !X509_PUBKEY_get0_param(NULL, NULL, NULL, &algB, b) || algB == NULL) | |
538 | return -2; | |
539 | if (X509_ALGOR_cmp(algA, algB) != 0) | |
540 | return 0; | |
541 | if ((pA = X509_PUBKEY_get0(a)) == NULL | |
542 | || (pB = X509_PUBKEY_get0(b)) == NULL) | |
543 | return -2; | |
c74aaa39 | 544 | return EVP_PKEY_eq(pA, pB); |
93f99b68 | 545 | } |
22b81444 | 546 | |
b4250010 | 547 | int X509_PUBKEY_get0_libctx(OSSL_LIB_CTX **plibctx, const char **ppropq, |
22b81444 RL |
548 | const X509_PUBKEY *key) |
549 | { | |
550 | if (plibctx) | |
551 | *plibctx = key->libctx; | |
552 | if (ppropq) | |
553 | *ppropq = key->propq; | |
554 | return 1; | |
555 | } |