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Commit | Line | Data |
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b1322259 | 1 | /* |
4333b89f | 2 | * Copyright 1995-2021 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 | ||
7836f949 DDO |
102 | if (x == NULL || pkey == NULL) { |
103 | ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER); | |
26a7d938 | 104 | return 0; |
7836f949 | 105 | } |
0f113f3e | 106 | |
e56ba0e1 RL |
107 | if (pkey->ameth != NULL) { |
108 | if ((pk = X509_PUBKEY_new()) == NULL) { | |
9311d0c4 | 109 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
e56ba0e1 RL |
110 | goto error; |
111 | } | |
112 | if (pkey->ameth->pub_encode != NULL) { | |
0f113f3e | 113 | if (!pkey->ameth->pub_encode(pk, pkey)) { |
9311d0c4 | 114 | ERR_raise(ERR_LIB_X509, X509_R_PUBLIC_KEY_ENCODE_ERROR); |
0f113f3e MC |
115 | goto error; |
116 | } | |
117 | } else { | |
9311d0c4 | 118 | ERR_raise(ERR_LIB_X509, X509_R_METHOD_NOT_SUPPORTED); |
0f113f3e MC |
119 | goto error; |
120 | } | |
113adc1f | 121 | } else if (evp_pkey_is_provided(pkey)) { |
113adc1f RL |
122 | unsigned char *der = NULL; |
123 | size_t derlen = 0; | |
ece9304c | 124 | OSSL_ENCODER_CTX *ectx = |
fe75766c TM |
125 | OSSL_ENCODER_CTX_new_for_pkey(pkey, EVP_PKEY_PUBLIC_KEY, |
126 | "DER", "SubjectPublicKeyInfo", | |
127 | NULL); | |
e56ba0e1 | 128 | |
113adc1f RL |
129 | if (OSSL_ENCODER_to_data(ectx, &der, &derlen)) { |
130 | const unsigned char *pder = der; | |
e56ba0e1 | 131 | |
113adc1f | 132 | pk = d2i_X509_PUBKEY(NULL, &pder, (long)derlen); |
e56ba0e1 RL |
133 | } |
134 | ||
ece9304c | 135 | OSSL_ENCODER_CTX_free(ectx); |
113adc1f | 136 | OPENSSL_free(der); |
0f113f3e MC |
137 | } |
138 | ||
7836f949 DDO |
139 | if (pk == NULL) { |
140 | ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM); | |
141 | goto error; | |
142 | } | |
e56ba0e1 | 143 | |
222561fe | 144 | X509_PUBKEY_free(*x); |
e56ba0e1 | 145 | if (!EVP_PKEY_up_ref(pkey)) { |
9311d0c4 | 146 | ERR_raise(ERR_LIB_X509, ERR_R_INTERNAL_ERROR); |
e56ba0e1 RL |
147 | goto error; |
148 | } | |
0f113f3e | 149 | *x = pk; |
a076951b RL |
150 | |
151 | /* | |
152 | * pk->pkey is NULL when using the legacy routine, but is non-NULL when | |
ece9304c | 153 | * going through the encoder, and for all intents and purposes, it's |
a076951b RL |
154 | * a perfect copy of |pkey|, just not the same instance. In that case, |
155 | * we could simply return early, right here. | |
156 | * However, in the interest of being cautious leaning on paranoia, some | |
157 | * application might very well depend on the passed |pkey| being used | |
158 | * and none other, so we spend a few more cycles throwing away the newly | |
159 | * created |pk->pkey| and replace it with |pkey|. | |
160 | * TODO(3.0) Investigate if it's safe to change to simply return here | |
161 | * if |pk->pkey != NULL|. | |
162 | */ | |
163 | if (pk->pkey != NULL) | |
164 | EVP_PKEY_free(pk->pkey); | |
165 | ||
fa0a9d71 | 166 | pk->pkey = pkey; |
e56ba0e1 RL |
167 | return 1; |
168 | ||
0f113f3e | 169 | error: |
222561fe | 170 | X509_PUBKEY_free(pk); |
0f113f3e MC |
171 | return 0; |
172 | } | |
d02b48c6 | 173 | |
fa0a9d71 DSH |
174 | /* |
175 | * Attempt to decode a public key. | |
176 | * Returns 1 on success, 0 for a decode failure and -1 for a fatal | |
177 | * error e.g. malloc failure. | |
178 | */ | |
0f113f3e | 179 | |
0f113f3e | 180 | |
7674e923 | 181 | static int x509_pubkey_decode(EVP_PKEY **ppkey, const X509_PUBKEY *key) |
7fcdbd83 | 182 | { |
fa0a9d71 | 183 | EVP_PKEY *pkey = EVP_PKEY_new(); |
0f113f3e | 184 | |
fa0a9d71 | 185 | if (pkey == NULL) { |
9311d0c4 | 186 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
fa0a9d71 | 187 | return -1; |
0f113f3e MC |
188 | } |
189 | ||
fa0a9d71 | 190 | if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(key->algor->algorithm))) { |
9311d0c4 | 191 | ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM); |
0f113f3e MC |
192 | goto error; |
193 | } | |
194 | ||
fa0a9d71 DSH |
195 | if (pkey->ameth->pub_decode) { |
196 | /* | |
197 | * Treat any failure of pub_decode as a decode error. In | |
198 | * future we could have different return codes for decode | |
199 | * errors and fatal errors such as malloc failure. | |
200 | */ | |
66066e1b | 201 | if (!pkey->ameth->pub_decode(pkey, key)) |
0f113f3e | 202 | goto error; |
0f113f3e | 203 | } else { |
9311d0c4 | 204 | ERR_raise(ERR_LIB_X509, X509_R_METHOD_NOT_SUPPORTED); |
0f113f3e MC |
205 | goto error; |
206 | } | |
207 | ||
fa0a9d71 DSH |
208 | *ppkey = pkey; |
209 | return 1; | |
0f113f3e MC |
210 | |
211 | error: | |
fa0a9d71 DSH |
212 | EVP_PKEY_free(pkey); |
213 | return 0; | |
214 | } | |
215 | ||
7674e923 | 216 | EVP_PKEY *X509_PUBKEY_get0(const X509_PUBKEY *key) |
fa0a9d71 DSH |
217 | { |
218 | EVP_PKEY *ret = NULL; | |
219 | ||
220 | if (key == NULL || key->public_key == NULL) | |
221 | return NULL; | |
222 | ||
223 | if (key->pkey != NULL) | |
224 | return key->pkey; | |
225 | ||
226 | /* | |
227 | * When the key ASN.1 is initially parsed an attempt is made to | |
228 | * decode the public key and cache the EVP_PKEY structure. If this | |
229 | * operation fails the cached value will be NULL. Parsing continues | |
230 | * to allow parsing of unknown key types or unsupported forms. | |
231 | * We repeat the decode operation so the appropriate errors are left | |
232 | * in the queue. | |
233 | */ | |
234 | x509_pubkey_decode(&ret, key); | |
235 | /* If decode doesn't fail something bad happened */ | |
236 | if (ret != NULL) { | |
9311d0c4 | 237 | ERR_raise(ERR_LIB_X509, ERR_R_INTERNAL_ERROR); |
fa0a9d71 DSH |
238 | EVP_PKEY_free(ret); |
239 | } | |
240 | ||
241 | return NULL; | |
0f113f3e MC |
242 | } |
243 | ||
7674e923 | 244 | EVP_PKEY *X509_PUBKEY_get(const X509_PUBKEY *key) |
c01ff880 DSH |
245 | { |
246 | EVP_PKEY *ret = X509_PUBKEY_get0(key); | |
e9e7b5df BE |
247 | |
248 | if (ret != NULL && !EVP_PKEY_up_ref(ret)) { | |
9311d0c4 | 249 | ERR_raise(ERR_LIB_X509, ERR_R_INTERNAL_ERROR); |
e9e7b5df BE |
250 | ret = NULL; |
251 | } | |
c01ff880 DSH |
252 | return ret; |
253 | } | |
254 | ||
0f113f3e | 255 | /* |
22b81444 RL |
256 | * Now three pseudo ASN1 routines that take an EVP_PKEY structure and encode |
257 | * or decode as X509_PUBKEY | |
52664f50 DSH |
258 | */ |
259 | ||
22b81444 | 260 | EVP_PKEY *d2i_PUBKEY_ex(EVP_PKEY **a, const unsigned char **pp, long length, |
b4250010 | 261 | OSSL_LIB_CTX *libctx, const char *propq) |
0f113f3e | 262 | { |
22b81444 RL |
263 | X509_PUBKEY *xpk, *xpk2 = NULL, **pxpk = NULL; |
264 | EVP_PKEY *pktmp = NULL; | |
a46c9789 | 265 | const unsigned char *q; |
12a765a5 | 266 | |
a46c9789 | 267 | q = *pp; |
22b81444 RL |
268 | |
269 | /* | |
270 | * If libctx or propq are non-NULL, we take advantage of the reuse | |
271 | * feature. It's not generally recommended, but is safe enough for | |
272 | * newly created structures. | |
273 | */ | |
274 | if (libctx != NULL || propq != NULL) { | |
275 | xpk2 = OPENSSL_zalloc(sizeof(*xpk2)); | |
276 | if (xpk2 == NULL) { | |
277 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); | |
278 | return NULL; | |
279 | } | |
637dce3c SL |
280 | if (!x509_pubkey_set0_libctx(xpk2, libctx, propq)) |
281 | goto end; | |
22b81444 RL |
282 | pxpk = &xpk2; |
283 | } | |
284 | xpk = d2i_X509_PUBKEY(pxpk, &q, length); | |
12a765a5 | 285 | if (xpk == NULL) |
22b81444 | 286 | goto end; |
0f113f3e MC |
287 | pktmp = X509_PUBKEY_get(xpk); |
288 | X509_PUBKEY_free(xpk); | |
22b81444 | 289 | xpk2 = NULL; /* We know that xpk == xpk2 */ |
12a765a5 | 290 | if (pktmp == NULL) |
22b81444 | 291 | goto end; |
a46c9789 | 292 | *pp = q; |
12a765a5 | 293 | if (a != NULL) { |
0f113f3e MC |
294 | EVP_PKEY_free(*a); |
295 | *a = pktmp; | |
296 | } | |
22b81444 RL |
297 | end: |
298 | X509_PUBKEY_free(xpk2); | |
0f113f3e MC |
299 | return pktmp; |
300 | } | |
52664f50 | 301 | |
22b81444 RL |
302 | EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp, long length) |
303 | { | |
304 | return d2i_PUBKEY_ex(a, pp, length, NULL, NULL); | |
305 | } | |
306 | ||
9fdcc21f | 307 | int i2d_PUBKEY(const EVP_PKEY *a, unsigned char **pp) |
0f113f3e | 308 | { |
9fdcc21f DO |
309 | int ret = -1; |
310 | ||
311 | if (a == NULL) | |
0f113f3e | 312 | return 0; |
cdb16632 RL |
313 | if (a->ameth != NULL) { |
314 | X509_PUBKEY *xpk = NULL; | |
315 | ||
316 | if ((xpk = X509_PUBKEY_new()) == NULL) | |
317 | return -1; | |
318 | ||
319 | /* pub_encode() only encode parameters, not the key itself */ | |
320 | if (a->ameth->pub_encode != NULL && a->ameth->pub_encode(xpk, a)) { | |
321 | xpk->pkey = (EVP_PKEY *)a; | |
322 | ret = i2d_X509_PUBKEY(xpk, pp); | |
323 | xpk->pkey = NULL; | |
324 | } | |
325 | X509_PUBKEY_free(xpk); | |
3c6ed955 | 326 | } else if (a->keymgmt != NULL) { |
ece9304c | 327 | OSSL_ENCODER_CTX *ctx = |
fe75766c TM |
328 | OSSL_ENCODER_CTX_new_for_pkey(a, EVP_PKEY_PUBLIC_KEY, |
329 | "DER", "SubjectPublicKeyInfo", | |
330 | NULL); | |
cdb16632 RL |
331 | BIO *out = BIO_new(BIO_s_mem()); |
332 | BUF_MEM *buf = NULL; | |
333 | ||
97bb8dff | 334 | if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0 |
cdb16632 | 335 | && out != NULL |
ece9304c | 336 | && OSSL_ENCODER_to_bio(ctx, out) |
cdb16632 RL |
337 | && BIO_get_mem_ptr(out, &buf) > 0) { |
338 | ret = buf->length; | |
339 | ||
340 | if (pp != NULL) { | |
341 | if (*pp == NULL) { | |
342 | *pp = (unsigned char *)buf->data; | |
343 | buf->length = 0; | |
344 | buf->data = NULL; | |
345 | } else { | |
346 | memcpy(*pp, buf->data, ret); | |
347 | *pp += ret; | |
348 | } | |
349 | } | |
350 | } | |
351 | BIO_free(out); | |
ece9304c | 352 | OSSL_ENCODER_CTX_free(ctx); |
cdb16632 RL |
353 | } |
354 | ||
0f113f3e MC |
355 | return ret; |
356 | } | |
357 | ||
358 | /* | |
359 | * The following are equivalents but which return RSA and DSA keys | |
52664f50 | 360 | */ |
0f113f3e MC |
361 | RSA *d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp, long length) |
362 | { | |
363 | EVP_PKEY *pkey; | |
364 | RSA *key; | |
365 | const unsigned char *q; | |
12a765a5 | 366 | |
0f113f3e MC |
367 | q = *pp; |
368 | pkey = d2i_PUBKEY(NULL, &q, length); | |
12a765a5 | 369 | if (pkey == NULL) |
0f113f3e MC |
370 | return NULL; |
371 | key = EVP_PKEY_get1_RSA(pkey); | |
372 | EVP_PKEY_free(pkey); | |
12a765a5 | 373 | if (key == NULL) |
0f113f3e MC |
374 | return NULL; |
375 | *pp = q; | |
12a765a5 | 376 | if (a != NULL) { |
0f113f3e MC |
377 | RSA_free(*a); |
378 | *a = key; | |
379 | } | |
380 | return key; | |
381 | } | |
52664f50 | 382 | |
9fdcc21f | 383 | int i2d_RSA_PUBKEY(const RSA *a, unsigned char **pp) |
0f113f3e MC |
384 | { |
385 | EVP_PKEY *pktmp; | |
386 | int ret; | |
387 | if (!a) | |
388 | return 0; | |
389 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 390 | if (pktmp == NULL) { |
9311d0c4 | 391 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
157997f0 | 392 | return -1; |
0f113f3e | 393 | } |
9fdcc21f | 394 | (void)EVP_PKEY_assign_RSA(pktmp, (RSA *)a); |
0f113f3e | 395 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 396 | pktmp->pkey.ptr = NULL; |
0f113f3e MC |
397 | EVP_PKEY_free(pktmp); |
398 | return ret; | |
399 | } | |
52664f50 | 400 | |
cf1b7d96 | 401 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
402 | DSA *d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp, long length) |
403 | { | |
404 | EVP_PKEY *pkey; | |
405 | DSA *key; | |
406 | const unsigned char *q; | |
12a765a5 | 407 | |
0f113f3e MC |
408 | q = *pp; |
409 | pkey = d2i_PUBKEY(NULL, &q, length); | |
12a765a5 | 410 | if (pkey == NULL) |
0f113f3e MC |
411 | return NULL; |
412 | key = EVP_PKEY_get1_DSA(pkey); | |
413 | EVP_PKEY_free(pkey); | |
12a765a5 | 414 | if (key == NULL) |
0f113f3e MC |
415 | return NULL; |
416 | *pp = q; | |
12a765a5 | 417 | if (a != NULL) { |
0f113f3e MC |
418 | DSA_free(*a); |
419 | *a = key; | |
420 | } | |
421 | return key; | |
422 | } | |
52664f50 | 423 | |
9fdcc21f | 424 | int i2d_DSA_PUBKEY(const DSA *a, unsigned char **pp) |
0f113f3e MC |
425 | { |
426 | EVP_PKEY *pktmp; | |
427 | int ret; | |
428 | if (!a) | |
429 | return 0; | |
430 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 431 | if (pktmp == NULL) { |
9311d0c4 | 432 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
157997f0 | 433 | return -1; |
0f113f3e | 434 | } |
9fdcc21f | 435 | (void)EVP_PKEY_assign_DSA(pktmp, (DSA *)a); |
0f113f3e | 436 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 437 | pktmp->pkey.ptr = NULL; |
0f113f3e MC |
438 | EVP_PKEY_free(pktmp); |
439 | return ret; | |
440 | } | |
4d94ae00 BM |
441 | #endif |
442 | ||
14a7cfb3 | 443 | #ifndef OPENSSL_NO_EC |
6343829a | 444 | EC_KEY *d2i_EC_PUBKEY(EC_KEY **a, const unsigned char **pp, long length) |
0f113f3e MC |
445 | { |
446 | EVP_PKEY *pkey; | |
447 | EC_KEY *key; | |
448 | const unsigned char *q; | |
12a765a5 | 449 | |
0f113f3e MC |
450 | q = *pp; |
451 | pkey = d2i_PUBKEY(NULL, &q, length); | |
12a765a5 | 452 | if (pkey == NULL) |
26a7d938 | 453 | return NULL; |
0f113f3e MC |
454 | key = EVP_PKEY_get1_EC_KEY(pkey); |
455 | EVP_PKEY_free(pkey); | |
12a765a5 | 456 | if (key == NULL) |
26a7d938 | 457 | return NULL; |
0f113f3e | 458 | *pp = q; |
12a765a5 | 459 | if (a != NULL) { |
0f113f3e MC |
460 | EC_KEY_free(*a); |
461 | *a = key; | |
462 | } | |
26a7d938 | 463 | return key; |
0f113f3e | 464 | } |
4d94ae00 | 465 | |
9fdcc21f | 466 | int i2d_EC_PUBKEY(const EC_KEY *a, unsigned char **pp) |
0f113f3e MC |
467 | { |
468 | EVP_PKEY *pktmp; | |
469 | int ret; | |
12a765a5 RS |
470 | |
471 | if (a == NULL) | |
26a7d938 | 472 | return 0; |
0f113f3e | 473 | if ((pktmp = EVP_PKEY_new()) == NULL) { |
9311d0c4 | 474 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
157997f0 | 475 | return -1; |
0f113f3e | 476 | } |
9fdcc21f | 477 | (void)EVP_PKEY_assign_EC_KEY(pktmp, (EC_KEY *)a); |
0f113f3e | 478 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 479 | pktmp->pkey.ptr = NULL; |
0f113f3e | 480 | EVP_PKEY_free(pktmp); |
26a7d938 | 481 | return ret; |
0f113f3e | 482 | } |
12aefe78 | 483 | #endif |
448be743 DSH |
484 | |
485 | int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, | |
0f113f3e MC |
486 | int ptype, void *pval, |
487 | unsigned char *penc, int penclen) | |
488 | { | |
489 | if (!X509_ALGOR_set0(pub->algor, aobj, ptype, pval)) | |
490 | return 0; | |
491 | if (penc) { | |
b548a1f1 | 492 | OPENSSL_free(pub->public_key->data); |
0f113f3e MC |
493 | pub->public_key->data = penc; |
494 | pub->public_key->length = penclen; | |
495 | /* Set number of unused bits to zero */ | |
496 | pub->public_key->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); | |
497 | pub->public_key->flags |= ASN1_STRING_FLAG_BITS_LEFT; | |
498 | } | |
499 | return 1; | |
500 | } | |
448be743 DSH |
501 | |
502 | int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, | |
0f113f3e | 503 | const unsigned char **pk, int *ppklen, |
7674e923 | 504 | X509_ALGOR **pa, const X509_PUBKEY *pub) |
0f113f3e MC |
505 | { |
506 | if (ppkalg) | |
507 | *ppkalg = pub->algor->algorithm; | |
508 | if (pk) { | |
509 | *pk = pub->public_key->data; | |
510 | *ppklen = pub->public_key->length; | |
511 | } | |
512 | if (pa) | |
513 | *pa = pub->algor; | |
514 | return 1; | |
515 | } | |
29fa0a1a DSH |
516 | |
517 | ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x) | |
518 | { | |
519 | if (x == NULL) | |
520 | return NULL; | |
521 | return x->cert_info.key->public_key; | |
522 | } | |
93f99b68 DDO |
523 | |
524 | /* Returns 1 for equal, 0, for non-equal, < 0 on error */ | |
525 | int X509_PUBKEY_eq(const X509_PUBKEY *a, const X509_PUBKEY *b) | |
526 | { | |
527 | X509_ALGOR *algA, *algB; | |
528 | EVP_PKEY *pA, *pB; | |
529 | ||
530 | if (a == b) | |
531 | return 1; | |
532 | if (a == NULL || b == NULL) | |
533 | return 0; | |
534 | if (!X509_PUBKEY_get0_param(NULL, NULL, NULL, &algA, a) || algA == NULL | |
535 | || !X509_PUBKEY_get0_param(NULL, NULL, NULL, &algB, b) || algB == NULL) | |
536 | return -2; | |
537 | if (X509_ALGOR_cmp(algA, algB) != 0) | |
538 | return 0; | |
539 | if ((pA = X509_PUBKEY_get0(a)) == NULL | |
540 | || (pB = X509_PUBKEY_get0(b)) == NULL) | |
541 | return -2; | |
c74aaa39 | 542 | return EVP_PKEY_eq(pA, pB); |
93f99b68 | 543 | } |
22b81444 | 544 | |
b4250010 | 545 | int X509_PUBKEY_get0_libctx(OSSL_LIB_CTX **plibctx, const char **ppropq, |
22b81444 RL |
546 | const X509_PUBKEY *key) |
547 | { | |
548 | if (plibctx) | |
549 | *plibctx = key->libctx; | |
550 | if (ppropq) | |
551 | *ppropq = key->propq; | |
552 | return 1; | |
553 | } |