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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> |
29bf83c8 | 20 | #include <openssl/engine.h> |
25f2138b DMSP |
21 | #include "crypto/asn1.h" |
22 | #include "crypto/evp.h" | |
23 | #include "crypto/x509.h" | |
3c27208f RS |
24 | #include <openssl/rsa.h> |
25 | #include <openssl/dsa.h> | |
10315851 | 26 | #include <openssl/decoder.h> |
ece9304c | 27 | #include <openssl/encoder.h> |
97bb8dff | 28 | #include "internal/provider.h" |
10315851 | 29 | #include "internal/sizes.h" |
d02b48c6 | 30 | |
29fa0a1a DSH |
31 | struct X509_pubkey_st { |
32 | X509_ALGOR *algor; | |
33 | ASN1_BIT_STRING *public_key; | |
10315851 | 34 | |
29fa0a1a | 35 | EVP_PKEY *pkey; |
22b81444 RL |
36 | |
37 | /* extra data for the callback, used by d2i_PUBKEY_ex */ | |
b4250010 | 38 | OSSL_LIB_CTX *libctx; |
637dce3c | 39 | char *propq; |
10315851 RL |
40 | |
41 | /* Flag to force legacy keys */ | |
42 | unsigned int flag_force_legacy : 1; | |
29fa0a1a DSH |
43 | }; |
44 | ||
7674e923 | 45 | static int x509_pubkey_decode(EVP_PKEY **pk, const X509_PUBKEY *key); |
fa0a9d71 | 46 | |
637dce3c SL |
47 | static int x509_pubkey_set0_libctx(X509_PUBKEY *x, OSSL_LIB_CTX *libctx, |
48 | const char *propq) | |
49 | { | |
50 | if (x != NULL) { | |
51 | x->libctx = libctx; | |
52 | OPENSSL_free(x->propq); | |
53 | x->propq = NULL; | |
54 | if (propq != NULL) { | |
55 | x->propq = OPENSSL_strdup(propq); | |
56 | if (x->propq == NULL) | |
57 | return 0; | |
58 | } | |
59 | } | |
60 | return 1; | |
61 | } | |
62 | ||
10315851 RL |
63 | ASN1_SEQUENCE(X509_PUBKEY_INTERNAL) = { |
64 | ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR), | |
65 | ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING) | |
66 | } static_ASN1_SEQUENCE_END_name(X509_PUBKEY, X509_PUBKEY_INTERNAL) | |
67 | ||
8c7c1c84 MC |
68 | X509_PUBKEY *ossl_d2i_X509_PUBKEY_INTERNAL(const unsigned char **pp, |
69 | long len, OSSL_LIB_CTX *libctx) | |
70 | { | |
71 | X509_PUBKEY *xpub = OPENSSL_zalloc(sizeof(*xpub)); | |
72 | ||
73 | if (xpub == NULL) | |
74 | return NULL; | |
75 | return (X509_PUBKEY *)ASN1_item_d2i_ex((ASN1_VALUE **)&xpub, pp, len, | |
76 | ASN1_ITEM_rptr(X509_PUBKEY_INTERNAL), | |
77 | libctx, NULL); | |
78 | } | |
79 | ||
80 | void ossl_X509_PUBKEY_INTERNAL_free(X509_PUBKEY *xpub) | |
81 | { | |
82 | ASN1_item_free((ASN1_VALUE *)xpub, ASN1_ITEM_rptr(X509_PUBKEY_INTERNAL)); | |
83 | } | |
84 | ||
10315851 | 85 | static void x509_pubkey_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it) |
0f113f3e | 86 | { |
15025190 P |
87 | X509_PUBKEY *pubkey; |
88 | ||
89 | if (pval != NULL && (pubkey = (X509_PUBKEY *)*pval) != NULL) { | |
90 | X509_ALGOR_free(pubkey->algor); | |
91 | ASN1_BIT_STRING_free(pubkey->public_key); | |
92 | EVP_PKEY_free(pubkey->pkey); | |
93 | OPENSSL_free(pubkey->propq); | |
94 | OPENSSL_free(pubkey); | |
95 | *pval = NULL; | |
96 | } | |
10315851 RL |
97 | } |
98 | ||
99 | static int x509_pubkey_ex_populate(ASN1_VALUE **pval, const ASN1_ITEM *it) | |
100 | { | |
101 | X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; | |
102 | ||
103 | return (pubkey->algor != NULL | |
104 | || (pubkey->algor = X509_ALGOR_new()) != NULL) | |
105 | && (pubkey->public_key != NULL | |
106 | || (pubkey->public_key = ASN1_BIT_STRING_new()) != NULL); | |
107 | } | |
108 | ||
c8a9af97 MC |
109 | |
110 | static int x509_pubkey_ex_new_ex(ASN1_VALUE **pval, const ASN1_ITEM *it, | |
111 | OSSL_LIB_CTX *libctx, const char *propq) | |
10315851 RL |
112 | { |
113 | X509_PUBKEY *ret; | |
114 | ||
115 | if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL | |
c8a9af97 MC |
116 | || !x509_pubkey_ex_populate((ASN1_VALUE **)&ret, NULL) |
117 | || !x509_pubkey_set0_libctx(ret, libctx, propq)) { | |
10315851 | 118 | x509_pubkey_ex_free((ASN1_VALUE **)&ret, NULL); |
475c5bbd | 119 | ret = NULL; |
10315851 RL |
120 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
121 | } else { | |
122 | *pval = (ASN1_VALUE *)ret; | |
123 | } | |
124 | ||
125 | return ret != NULL; | |
126 | } | |
127 | ||
c6313780 MC |
128 | static int x509_pubkey_ex_d2i_ex(ASN1_VALUE **pval, |
129 | const unsigned char **in, long len, | |
130 | const ASN1_ITEM *it, int tag, int aclass, | |
131 | char opt, ASN1_TLC *ctx, OSSL_LIB_CTX *libctx, | |
132 | const char *propq) | |
10315851 RL |
133 | { |
134 | const unsigned char *in_saved = *in; | |
2b049e93 | 135 | size_t publen; |
10315851 RL |
136 | X509_PUBKEY *pubkey; |
137 | int ret; | |
138 | OSSL_DECODER_CTX *dctx = NULL; | |
2b049e93 | 139 | unsigned char *tmpbuf = NULL; |
10315851 | 140 | |
c6313780 | 141 | if (*pval == NULL && !x509_pubkey_ex_new_ex(pval, it, libctx, propq)) |
10315851 RL |
142 | return 0; |
143 | if (!x509_pubkey_ex_populate(pval, NULL)) { | |
144 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); | |
145 | return 0; | |
146 | } | |
147 | ||
148 | /* This ensures that |*in| advances properly no matter what */ | |
149 | if ((ret = ASN1_item_ex_d2i(pval, in, len, | |
150 | ASN1_ITEM_rptr(X509_PUBKEY_INTERNAL), | |
151 | tag, aclass, opt, ctx)) <= 0) | |
152 | return ret; | |
153 | ||
2b049e93 MC |
154 | publen = *in - in_saved; |
155 | if (!ossl_assert(publen > 0)) { | |
156 | ERR_raise(ERR_LIB_ASN1, ERR_R_INTERNAL_ERROR); | |
157 | return 0; | |
158 | } | |
159 | ||
10315851 RL |
160 | pubkey = (X509_PUBKEY *)*pval; |
161 | EVP_PKEY_free(pubkey->pkey); | |
162 | pubkey->pkey = NULL; | |
163 | ||
164 | /* | |
165 | * Opportunistically decode the key but remove any non fatal errors | |
166 | * from the queue. Subsequent explicit attempts to decode/use the key | |
167 | * will return an appropriate error. | |
168 | */ | |
169 | ERR_set_mark(); | |
170 | ||
171 | /* | |
172 | * Try to decode with legacy method first. This ensures that engines | |
173 | * aren't overriden by providers. | |
174 | */ | |
175 | if ((ret = x509_pubkey_decode(&pubkey->pkey, pubkey)) == -1) { | |
176 | /* -1 indicates a fatal error, like malloc failure */ | |
177 | ERR_clear_last_mark(); | |
178 | goto end; | |
179 | } | |
180 | ||
181 | /* Try to decode it into an EVP_PKEY with OSSL_DECODER */ | |
182 | if (ret <= 0 && !pubkey->flag_force_legacy) { | |
2b049e93 | 183 | const unsigned char *p; |
10315851 | 184 | char txtoidname[OSSL_MAX_NAME_SIZE]; |
f8da1d80 | 185 | size_t slen = publen; |
10315851 | 186 | |
2b049e93 MC |
187 | /* |
188 | * The decoders don't know how to handle anything other than Universal | |
189 | * class so we modify the data accordingly. | |
190 | */ | |
191 | if (aclass != V_ASN1_UNIVERSAL) { | |
192 | tmpbuf = OPENSSL_memdup(in_saved, publen); | |
193 | if (tmpbuf == NULL) { | |
194 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); | |
195 | return 0; | |
196 | } | |
197 | in_saved = tmpbuf; | |
198 | *tmpbuf = V_ASN1_CONSTRUCTED | V_ASN1_SEQUENCE; | |
199 | } | |
200 | p = in_saved; | |
201 | ||
10315851 RL |
202 | if (OBJ_obj2txt(txtoidname, sizeof(txtoidname), |
203 | pubkey->algor->algorithm, 0) <= 0) { | |
66066e1b | 204 | ERR_clear_last_mark(); |
10315851 | 205 | goto end; |
66066e1b | 206 | } |
10315851 RL |
207 | if ((dctx = |
208 | OSSL_DECODER_CTX_new_for_pkey(&pubkey->pkey, | |
209 | "DER", "SubjectPublicKeyInfo", | |
210 | txtoidname, EVP_PKEY_PUBLIC_KEY, | |
211 | pubkey->libctx, | |
212 | pubkey->propq)) != NULL) | |
213 | /* | |
214 | * As said higher up, we're being opportunistic. In other words, | |
f8da1d80 | 215 | * we don't care if we fail. |
10315851 | 216 | */ |
f8da1d80 MC |
217 | if (OSSL_DECODER_from_data(dctx, &p, &slen)) { |
218 | if (slen != 0) { | |
219 | /* | |
220 | * If we successfully decoded then we *must* consume all the | |
221 | * bytes. | |
222 | */ | |
223 | ERR_clear_last_mark(); | |
224 | ERR_raise(ERR_LIB_ASN1, EVP_R_DECODE_ERROR); | |
225 | goto end; | |
226 | } | |
227 | } | |
0f113f3e | 228 | } |
10315851 RL |
229 | |
230 | ERR_pop_to_mark(); | |
231 | ret = 1; | |
232 | end: | |
233 | OSSL_DECODER_CTX_free(dctx); | |
2b049e93 | 234 | OPENSSL_free(tmpbuf); |
10315851 | 235 | return ret; |
0f113f3e | 236 | } |
d02b48c6 | 237 | |
10315851 RL |
238 | static int x509_pubkey_ex_i2d(const ASN1_VALUE **pval, unsigned char **out, |
239 | const ASN1_ITEM *it, int tag, int aclass) | |
240 | { | |
241 | return ASN1_item_ex_i2d(pval, out, ASN1_ITEM_rptr(X509_PUBKEY_INTERNAL), | |
242 | tag, aclass); | |
243 | } | |
244 | ||
245 | static int x509_pubkey_ex_print(BIO *out, const ASN1_VALUE **pval, int indent, | |
246 | const char *fname, const ASN1_PCTX *pctx) | |
247 | { | |
248 | return ASN1_item_print(out, *pval, indent, | |
249 | ASN1_ITEM_rptr(X509_PUBKEY_INTERNAL), pctx); | |
250 | } | |
251 | ||
252 | static const ASN1_EXTERN_FUNCS x509_pubkey_ff = { | |
253 | NULL, | |
c8a9af97 | 254 | NULL, |
10315851 RL |
255 | x509_pubkey_ex_free, |
256 | 0, /* Default clear behaviour is OK */ | |
c6313780 | 257 | NULL, |
10315851 | 258 | x509_pubkey_ex_i2d, |
c8a9af97 MC |
259 | x509_pubkey_ex_print, |
260 | x509_pubkey_ex_new_ex, | |
c6313780 | 261 | x509_pubkey_ex_d2i_ex, |
10315851 | 262 | }; |
d02b48c6 | 263 | |
10315851 | 264 | IMPLEMENT_EXTERN_ASN1(X509_PUBKEY, V_ASN1_SEQUENCE, x509_pubkey_ff) |
9d6b1ce6 | 265 | IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY) |
10315851 | 266 | |
d6ded941 MC |
267 | X509_PUBKEY *X509_PUBKEY_new_ex(OSSL_LIB_CTX *libctx, const char *propq) |
268 | { | |
269 | X509_PUBKEY *pubkey = NULL; | |
270 | ||
c8a9af97 | 271 | pubkey = (X509_PUBKEY *)ASN1_item_new_ex(X509_PUBKEY_it(), libctx, propq); |
d6ded941 MC |
272 | if (!x509_pubkey_set0_libctx(pubkey, libctx, propq)) { |
273 | X509_PUBKEY_free(pubkey); | |
274 | pubkey = NULL; | |
275 | } | |
276 | return pubkey; | |
277 | } | |
278 | ||
10315851 RL |
279 | /* |
280 | * X509_PUBKEY_dup() must be implemented manually, because there is no | |
281 | * support for it in ASN1_EXTERN_FUNCS. | |
282 | */ | |
283 | X509_PUBKEY *X509_PUBKEY_dup(const X509_PUBKEY *a) | |
284 | { | |
e7aa284e P |
285 | X509_PUBKEY *pubkey = OPENSSL_zalloc(sizeof(*pubkey)); |
286 | ||
287 | if (pubkey == NULL | |
288 | || !x509_pubkey_set0_libctx(pubkey, a->libctx, a->propq) | |
289 | || (pubkey->algor = X509_ALGOR_dup(a->algor)) == NULL | |
290 | || (pubkey->public_key = ASN1_BIT_STRING_new()) == NULL | |
291 | || !ASN1_BIT_STRING_set(pubkey->public_key, | |
292 | a->public_key->data, a->public_key->length) | |
293 | || (a->pkey != NULL && !EVP_PKEY_up_ref(a->pkey))) { | |
10315851 RL |
294 | x509_pubkey_ex_free((ASN1_VALUE **)&pubkey, |
295 | ASN1_ITEM_rptr(X509_PUBKEY_INTERNAL)); | |
296 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); | |
297 | return NULL; | |
298 | } | |
10315851 RL |
299 | pubkey->pkey = a->pkey; |
300 | return pubkey; | |
301 | } | |
d02b48c6 | 302 | |
6b691a5c | 303 | int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey) |
0f113f3e MC |
304 | { |
305 | X509_PUBKEY *pk = NULL; | |
306 | ||
7836f949 DDO |
307 | if (x == NULL || pkey == NULL) { |
308 | ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER); | |
26a7d938 | 309 | return 0; |
7836f949 | 310 | } |
0f113f3e | 311 | |
e56ba0e1 RL |
312 | if (pkey->ameth != NULL) { |
313 | if ((pk = X509_PUBKEY_new()) == NULL) { | |
9311d0c4 | 314 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
e56ba0e1 RL |
315 | goto error; |
316 | } | |
317 | if (pkey->ameth->pub_encode != NULL) { | |
0f113f3e | 318 | if (!pkey->ameth->pub_encode(pk, pkey)) { |
9311d0c4 | 319 | ERR_raise(ERR_LIB_X509, X509_R_PUBLIC_KEY_ENCODE_ERROR); |
0f113f3e MC |
320 | goto error; |
321 | } | |
322 | } else { | |
9311d0c4 | 323 | ERR_raise(ERR_LIB_X509, X509_R_METHOD_NOT_SUPPORTED); |
0f113f3e MC |
324 | goto error; |
325 | } | |
113adc1f | 326 | } else if (evp_pkey_is_provided(pkey)) { |
113adc1f RL |
327 | unsigned char *der = NULL; |
328 | size_t derlen = 0; | |
ece9304c | 329 | OSSL_ENCODER_CTX *ectx = |
fe75766c TM |
330 | OSSL_ENCODER_CTX_new_for_pkey(pkey, EVP_PKEY_PUBLIC_KEY, |
331 | "DER", "SubjectPublicKeyInfo", | |
332 | NULL); | |
e56ba0e1 | 333 | |
113adc1f RL |
334 | if (OSSL_ENCODER_to_data(ectx, &der, &derlen)) { |
335 | const unsigned char *pder = der; | |
e56ba0e1 | 336 | |
113adc1f | 337 | pk = d2i_X509_PUBKEY(NULL, &pder, (long)derlen); |
e56ba0e1 RL |
338 | } |
339 | ||
ece9304c | 340 | OSSL_ENCODER_CTX_free(ectx); |
113adc1f | 341 | OPENSSL_free(der); |
0f113f3e MC |
342 | } |
343 | ||
7836f949 DDO |
344 | if (pk == NULL) { |
345 | ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM); | |
346 | goto error; | |
347 | } | |
e56ba0e1 | 348 | |
222561fe | 349 | X509_PUBKEY_free(*x); |
e56ba0e1 | 350 | if (!EVP_PKEY_up_ref(pkey)) { |
9311d0c4 | 351 | ERR_raise(ERR_LIB_X509, ERR_R_INTERNAL_ERROR); |
e56ba0e1 RL |
352 | goto error; |
353 | } | |
0f113f3e | 354 | *x = pk; |
a076951b RL |
355 | |
356 | /* | |
357 | * pk->pkey is NULL when using the legacy routine, but is non-NULL when | |
ece9304c | 358 | * going through the encoder, and for all intents and purposes, it's |
0d5bbaaa MC |
359 | * a perfect copy of the public key portions of |pkey|, just not the same |
360 | * instance. If that's all there was to pkey then we could simply return | |
361 | * early, right here. However, some application might very well depend on | |
362 | * the passed |pkey| being used and none other, so we spend a few more | |
363 | * cycles throwing away the newly created |pk->pkey| and replace it with | |
364 | * |pkey|. | |
a076951b RL |
365 | */ |
366 | if (pk->pkey != NULL) | |
367 | EVP_PKEY_free(pk->pkey); | |
368 | ||
fa0a9d71 | 369 | pk->pkey = pkey; |
e56ba0e1 RL |
370 | return 1; |
371 | ||
0f113f3e | 372 | error: |
222561fe | 373 | X509_PUBKEY_free(pk); |
0f113f3e MC |
374 | return 0; |
375 | } | |
d02b48c6 | 376 | |
fa0a9d71 DSH |
377 | /* |
378 | * Attempt to decode a public key. | |
379 | * Returns 1 on success, 0 for a decode failure and -1 for a fatal | |
380 | * error e.g. malloc failure. | |
10315851 RL |
381 | * |
382 | * This function is #legacy. | |
fa0a9d71 | 383 | */ |
7674e923 | 384 | static int x509_pubkey_decode(EVP_PKEY **ppkey, const X509_PUBKEY *key) |
7fcdbd83 | 385 | { |
29bf83c8 MC |
386 | EVP_PKEY *pkey; |
387 | int nid; | |
388 | ||
389 | nid = OBJ_obj2nid(key->algor->algorithm); | |
390 | if (!key->flag_force_legacy) { | |
391 | #ifndef OPENSSL_NO_ENGINE | |
392 | ENGINE *e = NULL; | |
393 | ||
394 | e = ENGINE_get_pkey_meth_engine(nid); | |
395 | if (e == NULL) | |
396 | return 0; | |
397 | ENGINE_finish(e); | |
398 | #else | |
399 | return 0; | |
400 | #endif | |
401 | } | |
0f113f3e | 402 | |
29bf83c8 | 403 | pkey = EVP_PKEY_new(); |
fa0a9d71 | 404 | if (pkey == NULL) { |
9311d0c4 | 405 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
fa0a9d71 | 406 | return -1; |
0f113f3e MC |
407 | } |
408 | ||
29bf83c8 | 409 | if (!EVP_PKEY_set_type(pkey, nid)) { |
9311d0c4 | 410 | ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM); |
0f113f3e MC |
411 | goto error; |
412 | } | |
413 | ||
fa0a9d71 DSH |
414 | if (pkey->ameth->pub_decode) { |
415 | /* | |
416 | * Treat any failure of pub_decode as a decode error. In | |
417 | * future we could have different return codes for decode | |
418 | * errors and fatal errors such as malloc failure. | |
419 | */ | |
66066e1b | 420 | if (!pkey->ameth->pub_decode(pkey, key)) |
0f113f3e | 421 | goto error; |
0f113f3e | 422 | } else { |
9311d0c4 | 423 | ERR_raise(ERR_LIB_X509, X509_R_METHOD_NOT_SUPPORTED); |
0f113f3e MC |
424 | goto error; |
425 | } | |
426 | ||
fa0a9d71 DSH |
427 | *ppkey = pkey; |
428 | return 1; | |
0f113f3e MC |
429 | |
430 | error: | |
fa0a9d71 DSH |
431 | EVP_PKEY_free(pkey); |
432 | return 0; | |
433 | } | |
434 | ||
7674e923 | 435 | EVP_PKEY *X509_PUBKEY_get0(const X509_PUBKEY *key) |
fa0a9d71 | 436 | { |
1df8322c MC |
437 | if (key == NULL) { |
438 | ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER); | |
fa0a9d71 | 439 | return NULL; |
1df8322c | 440 | } |
fa0a9d71 | 441 | |
1df8322c MC |
442 | if (key->pkey == NULL) { |
443 | /* We failed to decode the key when we loaded it, or it was never set */ | |
444 | ERR_raise(ERR_LIB_EVP, EVP_R_DECODE_ERROR); | |
445 | return NULL; | |
fa0a9d71 DSH |
446 | } |
447 | ||
1df8322c | 448 | return key->pkey; |
0f113f3e MC |
449 | } |
450 | ||
7674e923 | 451 | EVP_PKEY *X509_PUBKEY_get(const X509_PUBKEY *key) |
c01ff880 DSH |
452 | { |
453 | EVP_PKEY *ret = X509_PUBKEY_get0(key); | |
e9e7b5df BE |
454 | |
455 | if (ret != NULL && !EVP_PKEY_up_ref(ret)) { | |
9311d0c4 | 456 | ERR_raise(ERR_LIB_X509, ERR_R_INTERNAL_ERROR); |
e9e7b5df BE |
457 | ret = NULL; |
458 | } | |
c01ff880 DSH |
459 | return ret; |
460 | } | |
461 | ||
0f113f3e | 462 | /* |
22b81444 RL |
463 | * Now three pseudo ASN1 routines that take an EVP_PKEY structure and encode |
464 | * or decode as X509_PUBKEY | |
52664f50 | 465 | */ |
10315851 RL |
466 | static EVP_PKEY *d2i_PUBKEY_int(EVP_PKEY **a, |
467 | const unsigned char **pp, long length, | |
468 | OSSL_LIB_CTX *libctx, const char *propq, | |
469 | unsigned int force_legacy, | |
470 | X509_PUBKEY * | |
471 | (*d2i_x509_pubkey)(X509_PUBKEY **a, | |
472 | const unsigned char **in, | |
473 | long len)) | |
0f113f3e | 474 | { |
22b81444 RL |
475 | X509_PUBKEY *xpk, *xpk2 = NULL, **pxpk = NULL; |
476 | EVP_PKEY *pktmp = NULL; | |
a46c9789 | 477 | const unsigned char *q; |
12a765a5 | 478 | |
a46c9789 | 479 | q = *pp; |
22b81444 RL |
480 | |
481 | /* | |
482 | * If libctx or propq are non-NULL, we take advantage of the reuse | |
483 | * feature. It's not generally recommended, but is safe enough for | |
484 | * newly created structures. | |
485 | */ | |
10315851 | 486 | if (libctx != NULL || propq != NULL || force_legacy) { |
22b81444 RL |
487 | xpk2 = OPENSSL_zalloc(sizeof(*xpk2)); |
488 | if (xpk2 == NULL) { | |
489 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); | |
490 | return NULL; | |
491 | } | |
637dce3c SL |
492 | if (!x509_pubkey_set0_libctx(xpk2, libctx, propq)) |
493 | goto end; | |
10315851 | 494 | xpk2->flag_force_legacy = !!force_legacy; |
22b81444 RL |
495 | pxpk = &xpk2; |
496 | } | |
10315851 | 497 | xpk = d2i_x509_pubkey(pxpk, &q, length); |
12a765a5 | 498 | if (xpk == NULL) |
22b81444 | 499 | goto end; |
0f113f3e MC |
500 | pktmp = X509_PUBKEY_get(xpk); |
501 | X509_PUBKEY_free(xpk); | |
22b81444 | 502 | xpk2 = NULL; /* We know that xpk == xpk2 */ |
12a765a5 | 503 | if (pktmp == NULL) |
22b81444 | 504 | goto end; |
a46c9789 | 505 | *pp = q; |
12a765a5 | 506 | if (a != NULL) { |
0f113f3e MC |
507 | EVP_PKEY_free(*a); |
508 | *a = pktmp; | |
509 | } | |
22b81444 RL |
510 | end: |
511 | X509_PUBKEY_free(xpk2); | |
0f113f3e MC |
512 | return pktmp; |
513 | } | |
52664f50 | 514 | |
10315851 | 515 | /* For the algorithm specific d2i functions further down */ |
b2f1b365 MC |
516 | EVP_PKEY *ossl_d2i_PUBKEY_legacy(EVP_PKEY **a, const unsigned char **pp, |
517 | long length) | |
10315851 RL |
518 | { |
519 | return d2i_PUBKEY_int(a, pp, length, NULL, NULL, 1, d2i_X509_PUBKEY); | |
520 | } | |
521 | ||
522 | EVP_PKEY *d2i_PUBKEY_ex(EVP_PKEY **a, const unsigned char **pp, long length, | |
523 | OSSL_LIB_CTX *libctx, const char *propq) | |
524 | { | |
525 | return d2i_PUBKEY_int(a, pp, length, libctx, propq, 0, d2i_X509_PUBKEY); | |
526 | } | |
527 | ||
22b81444 RL |
528 | EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp, long length) |
529 | { | |
530 | return d2i_PUBKEY_ex(a, pp, length, NULL, NULL); | |
531 | } | |
532 | ||
9fdcc21f | 533 | int i2d_PUBKEY(const EVP_PKEY *a, unsigned char **pp) |
0f113f3e | 534 | { |
9fdcc21f DO |
535 | int ret = -1; |
536 | ||
537 | if (a == NULL) | |
0f113f3e | 538 | return 0; |
cdb16632 RL |
539 | if (a->ameth != NULL) { |
540 | X509_PUBKEY *xpk = NULL; | |
541 | ||
542 | if ((xpk = X509_PUBKEY_new()) == NULL) | |
543 | return -1; | |
544 | ||
545 | /* pub_encode() only encode parameters, not the key itself */ | |
546 | if (a->ameth->pub_encode != NULL && a->ameth->pub_encode(xpk, a)) { | |
547 | xpk->pkey = (EVP_PKEY *)a; | |
548 | ret = i2d_X509_PUBKEY(xpk, pp); | |
549 | xpk->pkey = NULL; | |
550 | } | |
551 | X509_PUBKEY_free(xpk); | |
3c6ed955 | 552 | } else if (a->keymgmt != NULL) { |
ece9304c | 553 | OSSL_ENCODER_CTX *ctx = |
fe75766c TM |
554 | OSSL_ENCODER_CTX_new_for_pkey(a, EVP_PKEY_PUBLIC_KEY, |
555 | "DER", "SubjectPublicKeyInfo", | |
556 | NULL); | |
cdb16632 RL |
557 | BIO *out = BIO_new(BIO_s_mem()); |
558 | BUF_MEM *buf = NULL; | |
559 | ||
97bb8dff | 560 | if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0 |
cdb16632 | 561 | && out != NULL |
ece9304c | 562 | && OSSL_ENCODER_to_bio(ctx, out) |
cdb16632 RL |
563 | && BIO_get_mem_ptr(out, &buf) > 0) { |
564 | ret = buf->length; | |
565 | ||
566 | if (pp != NULL) { | |
567 | if (*pp == NULL) { | |
568 | *pp = (unsigned char *)buf->data; | |
569 | buf->length = 0; | |
570 | buf->data = NULL; | |
571 | } else { | |
572 | memcpy(*pp, buf->data, ret); | |
573 | *pp += ret; | |
574 | } | |
575 | } | |
576 | } | |
577 | BIO_free(out); | |
ece9304c | 578 | OSSL_ENCODER_CTX_free(ctx); |
cdb16632 RL |
579 | } |
580 | ||
0f113f3e MC |
581 | return ret; |
582 | } | |
583 | ||
584 | /* | |
585 | * The following are equivalents but which return RSA and DSA keys | |
52664f50 | 586 | */ |
0f113f3e MC |
587 | RSA *d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp, long length) |
588 | { | |
589 | EVP_PKEY *pkey; | |
06f67612 | 590 | RSA *key = NULL; |
0f113f3e | 591 | const unsigned char *q; |
12a765a5 | 592 | |
0f113f3e | 593 | q = *pp; |
b2f1b365 | 594 | pkey = ossl_d2i_PUBKEY_legacy(NULL, &q, length); |
12a765a5 | 595 | if (pkey == NULL) |
0f113f3e MC |
596 | return NULL; |
597 | key = EVP_PKEY_get1_RSA(pkey); | |
598 | EVP_PKEY_free(pkey); | |
12a765a5 | 599 | if (key == NULL) |
0f113f3e MC |
600 | return NULL; |
601 | *pp = q; | |
12a765a5 | 602 | if (a != NULL) { |
0f113f3e MC |
603 | RSA_free(*a); |
604 | *a = key; | |
605 | } | |
606 | return key; | |
607 | } | |
52664f50 | 608 | |
9fdcc21f | 609 | int i2d_RSA_PUBKEY(const RSA *a, unsigned char **pp) |
0f113f3e MC |
610 | { |
611 | EVP_PKEY *pktmp; | |
612 | int ret; | |
613 | if (!a) | |
614 | return 0; | |
615 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 616 | if (pktmp == NULL) { |
9311d0c4 | 617 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
157997f0 | 618 | return -1; |
0f113f3e | 619 | } |
9fdcc21f | 620 | (void)EVP_PKEY_assign_RSA(pktmp, (RSA *)a); |
0f113f3e | 621 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 622 | pktmp->pkey.ptr = NULL; |
0f113f3e MC |
623 | EVP_PKEY_free(pktmp); |
624 | return ret; | |
625 | } | |
52664f50 | 626 | |
06f67612 RL |
627 | #ifndef OPENSSL_NO_DH |
628 | DH *ossl_d2i_DH_PUBKEY(DH **a, const unsigned char **pp, long length) | |
629 | { | |
630 | EVP_PKEY *pkey; | |
631 | DH *key = NULL; | |
632 | const unsigned char *q; | |
633 | ||
634 | q = *pp; | |
b2f1b365 | 635 | pkey = ossl_d2i_PUBKEY_legacy(NULL, &q, length); |
06f67612 RL |
636 | if (pkey == NULL) |
637 | return NULL; | |
ed576acd | 638 | if (EVP_PKEY_get_id(pkey) == EVP_PKEY_DH) |
06f67612 RL |
639 | key = EVP_PKEY_get1_DH(pkey); |
640 | EVP_PKEY_free(pkey); | |
641 | if (key == NULL) | |
642 | return NULL; | |
643 | *pp = q; | |
644 | if (a != NULL) { | |
645 | DH_free(*a); | |
646 | *a = key; | |
647 | } | |
648 | return key; | |
649 | } | |
650 | ||
651 | int ossl_i2d_DH_PUBKEY(const DH *a, unsigned char **pp) | |
652 | { | |
653 | EVP_PKEY *pktmp; | |
654 | int ret; | |
655 | if (!a) | |
656 | return 0; | |
657 | pktmp = EVP_PKEY_new(); | |
658 | if (pktmp == NULL) { | |
659 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); | |
660 | return -1; | |
661 | } | |
662 | (void)EVP_PKEY_assign_DH(pktmp, (DH *)a); | |
663 | ret = i2d_PUBKEY(pktmp, pp); | |
664 | pktmp->pkey.ptr = NULL; | |
665 | EVP_PKEY_free(pktmp); | |
666 | return ret; | |
667 | } | |
668 | ||
669 | DH *ossl_d2i_DHx_PUBKEY(DH **a, const unsigned char **pp, long length) | |
670 | { | |
671 | EVP_PKEY *pkey; | |
672 | DH *key = NULL; | |
673 | const unsigned char *q; | |
674 | ||
675 | q = *pp; | |
b2f1b365 | 676 | pkey = ossl_d2i_PUBKEY_legacy(NULL, &q, length); |
06f67612 RL |
677 | if (pkey == NULL) |
678 | return NULL; | |
ed576acd | 679 | if (EVP_PKEY_get_id(pkey) == EVP_PKEY_DHX) |
06f67612 RL |
680 | key = EVP_PKEY_get1_DH(pkey); |
681 | EVP_PKEY_free(pkey); | |
682 | if (key == NULL) | |
683 | return NULL; | |
684 | *pp = q; | |
685 | if (a != NULL) { | |
686 | DH_free(*a); | |
687 | *a = key; | |
688 | } | |
689 | return key; | |
690 | } | |
691 | ||
692 | int ossl_i2d_DHx_PUBKEY(const DH *a, unsigned char **pp) | |
693 | { | |
694 | EVP_PKEY *pktmp; | |
695 | int ret; | |
696 | if (!a) | |
697 | return 0; | |
698 | pktmp = EVP_PKEY_new(); | |
699 | if (pktmp == NULL) { | |
700 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); | |
701 | return -1; | |
702 | } | |
703 | (void)EVP_PKEY_assign(pktmp, EVP_PKEY_DHX, (DH *)a); | |
704 | ret = i2d_PUBKEY(pktmp, pp); | |
705 | pktmp->pkey.ptr = NULL; | |
706 | EVP_PKEY_free(pktmp); | |
707 | return ret; | |
708 | } | |
709 | #endif | |
710 | ||
cf1b7d96 | 711 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
712 | DSA *d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp, long length) |
713 | { | |
714 | EVP_PKEY *pkey; | |
06f67612 | 715 | DSA *key = NULL; |
0f113f3e | 716 | const unsigned char *q; |
12a765a5 | 717 | |
0f113f3e | 718 | q = *pp; |
b2f1b365 | 719 | pkey = ossl_d2i_PUBKEY_legacy(NULL, &q, length); |
12a765a5 | 720 | if (pkey == NULL) |
0f113f3e MC |
721 | return NULL; |
722 | key = EVP_PKEY_get1_DSA(pkey); | |
723 | EVP_PKEY_free(pkey); | |
12a765a5 | 724 | if (key == NULL) |
0f113f3e MC |
725 | return NULL; |
726 | *pp = q; | |
12a765a5 | 727 | if (a != NULL) { |
0f113f3e MC |
728 | DSA_free(*a); |
729 | *a = key; | |
730 | } | |
731 | return key; | |
732 | } | |
52664f50 | 733 | |
9fdcc21f | 734 | int i2d_DSA_PUBKEY(const DSA *a, unsigned char **pp) |
0f113f3e MC |
735 | { |
736 | EVP_PKEY *pktmp; | |
737 | int ret; | |
738 | if (!a) | |
739 | return 0; | |
740 | pktmp = EVP_PKEY_new(); | |
90945fa3 | 741 | if (pktmp == NULL) { |
9311d0c4 | 742 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
157997f0 | 743 | return -1; |
0f113f3e | 744 | } |
9fdcc21f | 745 | (void)EVP_PKEY_assign_DSA(pktmp, (DSA *)a); |
0f113f3e | 746 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 747 | pktmp->pkey.ptr = NULL; |
0f113f3e MC |
748 | EVP_PKEY_free(pktmp); |
749 | return ret; | |
750 | } | |
4d94ae00 BM |
751 | #endif |
752 | ||
14a7cfb3 | 753 | #ifndef OPENSSL_NO_EC |
6343829a | 754 | EC_KEY *d2i_EC_PUBKEY(EC_KEY **a, const unsigned char **pp, long length) |
0f113f3e MC |
755 | { |
756 | EVP_PKEY *pkey; | |
06f67612 | 757 | EC_KEY *key = NULL; |
0f113f3e | 758 | const unsigned char *q; |
b4c4a2c6 | 759 | int type; |
12a765a5 | 760 | |
0f113f3e | 761 | q = *pp; |
b2f1b365 | 762 | pkey = ossl_d2i_PUBKEY_legacy(NULL, &q, length); |
12a765a5 | 763 | if (pkey == NULL) |
26a7d938 | 764 | return NULL; |
ed576acd | 765 | type = EVP_PKEY_get_id(pkey); |
b4c4a2c6 | 766 | if (type == EVP_PKEY_EC || type == EVP_PKEY_SM2) |
06f67612 | 767 | key = EVP_PKEY_get1_EC_KEY(pkey); |
0f113f3e | 768 | EVP_PKEY_free(pkey); |
12a765a5 | 769 | if (key == NULL) |
26a7d938 | 770 | return NULL; |
0f113f3e | 771 | *pp = q; |
12a765a5 | 772 | if (a != NULL) { |
0f113f3e MC |
773 | EC_KEY_free(*a); |
774 | *a = key; | |
775 | } | |
26a7d938 | 776 | return key; |
0f113f3e | 777 | } |
4d94ae00 | 778 | |
9fdcc21f | 779 | int i2d_EC_PUBKEY(const EC_KEY *a, unsigned char **pp) |
0f113f3e MC |
780 | { |
781 | EVP_PKEY *pktmp; | |
782 | int ret; | |
12a765a5 RS |
783 | |
784 | if (a == NULL) | |
26a7d938 | 785 | return 0; |
0f113f3e | 786 | if ((pktmp = EVP_PKEY_new()) == NULL) { |
9311d0c4 | 787 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
157997f0 | 788 | return -1; |
0f113f3e | 789 | } |
9fdcc21f | 790 | (void)EVP_PKEY_assign_EC_KEY(pktmp, (EC_KEY *)a); |
0f113f3e | 791 | ret = i2d_PUBKEY(pktmp, pp); |
9fdcc21f | 792 | pktmp->pkey.ptr = NULL; |
0f113f3e | 793 | EVP_PKEY_free(pktmp); |
26a7d938 | 794 | return ret; |
0f113f3e | 795 | } |
06f67612 RL |
796 | |
797 | ECX_KEY *ossl_d2i_ED25519_PUBKEY(ECX_KEY **a, | |
798 | const unsigned char **pp, long length) | |
799 | { | |
800 | EVP_PKEY *pkey; | |
801 | ECX_KEY *key = NULL; | |
802 | const unsigned char *q; | |
803 | ||
804 | q = *pp; | |
b2f1b365 | 805 | pkey = ossl_d2i_PUBKEY_legacy(NULL, &q, length); |
06f67612 RL |
806 | if (pkey == NULL) |
807 | return NULL; | |
808 | key = ossl_evp_pkey_get1_ED25519(pkey); | |
809 | EVP_PKEY_free(pkey); | |
810 | if (key == NULL) | |
811 | return NULL; | |
812 | *pp = q; | |
813 | if (a != NULL) { | |
814 | ossl_ecx_key_free(*a); | |
815 | *a = key; | |
816 | } | |
817 | return key; | |
818 | } | |
819 | ||
820 | int ossl_i2d_ED25519_PUBKEY(const ECX_KEY *a, unsigned char **pp) | |
821 | { | |
822 | EVP_PKEY *pktmp; | |
823 | int ret; | |
824 | ||
825 | if (a == NULL) | |
826 | return 0; | |
827 | if ((pktmp = EVP_PKEY_new()) == NULL) { | |
828 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); | |
829 | return -1; | |
830 | } | |
831 | (void)EVP_PKEY_assign(pktmp, EVP_PKEY_ED25519, (ECX_KEY *)a); | |
832 | ret = i2d_PUBKEY(pktmp, pp); | |
833 | pktmp->pkey.ptr = NULL; | |
834 | EVP_PKEY_free(pktmp); | |
835 | return ret; | |
836 | } | |
837 | ||
838 | ECX_KEY *ossl_d2i_ED448_PUBKEY(ECX_KEY **a, | |
839 | const unsigned char **pp, long length) | |
840 | { | |
841 | EVP_PKEY *pkey; | |
842 | ECX_KEY *key = NULL; | |
843 | const unsigned char *q; | |
844 | ||
845 | q = *pp; | |
b2f1b365 | 846 | pkey = ossl_d2i_PUBKEY_legacy(NULL, &q, length); |
06f67612 RL |
847 | if (pkey == NULL) |
848 | return NULL; | |
ed576acd | 849 | if (EVP_PKEY_get_id(pkey) == EVP_PKEY_ED448) |
06f67612 RL |
850 | key = ossl_evp_pkey_get1_ED448(pkey); |
851 | EVP_PKEY_free(pkey); | |
852 | if (key == NULL) | |
853 | return NULL; | |
854 | *pp = q; | |
855 | if (a != NULL) { | |
856 | ossl_ecx_key_free(*a); | |
857 | *a = key; | |
858 | } | |
859 | return key; | |
860 | } | |
861 | ||
862 | int ossl_i2d_ED448_PUBKEY(const ECX_KEY *a, unsigned char **pp) | |
863 | { | |
864 | EVP_PKEY *pktmp; | |
865 | int ret; | |
866 | ||
867 | if (a == NULL) | |
868 | return 0; | |
869 | if ((pktmp = EVP_PKEY_new()) == NULL) { | |
870 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); | |
871 | return -1; | |
872 | } | |
873 | (void)EVP_PKEY_assign(pktmp, EVP_PKEY_ED448, (ECX_KEY *)a); | |
874 | ret = i2d_PUBKEY(pktmp, pp); | |
875 | pktmp->pkey.ptr = NULL; | |
876 | EVP_PKEY_free(pktmp); | |
877 | return ret; | |
878 | } | |
879 | ||
880 | ECX_KEY *ossl_d2i_X25519_PUBKEY(ECX_KEY **a, | |
881 | const unsigned char **pp, long length) | |
882 | { | |
883 | EVP_PKEY *pkey; | |
884 | ECX_KEY *key = NULL; | |
885 | const unsigned char *q; | |
886 | ||
887 | q = *pp; | |
b2f1b365 | 888 | pkey = ossl_d2i_PUBKEY_legacy(NULL, &q, length); |
06f67612 RL |
889 | if (pkey == NULL) |
890 | return NULL; | |
ed576acd | 891 | if (EVP_PKEY_get_id(pkey) == EVP_PKEY_X25519) |
06f67612 RL |
892 | key = ossl_evp_pkey_get1_X25519(pkey); |
893 | EVP_PKEY_free(pkey); | |
894 | if (key == NULL) | |
895 | return NULL; | |
896 | *pp = q; | |
897 | if (a != NULL) { | |
898 | ossl_ecx_key_free(*a); | |
899 | *a = key; | |
900 | } | |
901 | return key; | |
902 | } | |
903 | ||
904 | int ossl_i2d_X25519_PUBKEY(const ECX_KEY *a, unsigned char **pp) | |
905 | { | |
906 | EVP_PKEY *pktmp; | |
907 | int ret; | |
908 | ||
909 | if (a == NULL) | |
910 | return 0; | |
911 | if ((pktmp = EVP_PKEY_new()) == NULL) { | |
912 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); | |
913 | return -1; | |
914 | } | |
915 | (void)EVP_PKEY_assign(pktmp, EVP_PKEY_X25519, (ECX_KEY *)a); | |
916 | ret = i2d_PUBKEY(pktmp, pp); | |
917 | pktmp->pkey.ptr = NULL; | |
918 | EVP_PKEY_free(pktmp); | |
919 | return ret; | |
920 | } | |
921 | ||
922 | ECX_KEY *ossl_d2i_X448_PUBKEY(ECX_KEY **a, | |
923 | const unsigned char **pp, long length) | |
924 | { | |
925 | EVP_PKEY *pkey; | |
926 | ECX_KEY *key = NULL; | |
927 | const unsigned char *q; | |
928 | ||
929 | q = *pp; | |
b2f1b365 | 930 | pkey = ossl_d2i_PUBKEY_legacy(NULL, &q, length); |
06f67612 RL |
931 | if (pkey == NULL) |
932 | return NULL; | |
ed576acd | 933 | if (EVP_PKEY_get_id(pkey) == EVP_PKEY_X448) |
06f67612 RL |
934 | key = ossl_evp_pkey_get1_X448(pkey); |
935 | EVP_PKEY_free(pkey); | |
936 | if (key == NULL) | |
937 | return NULL; | |
938 | *pp = q; | |
939 | if (a != NULL) { | |
940 | ossl_ecx_key_free(*a); | |
941 | *a = key; | |
942 | } | |
943 | return key; | |
944 | } | |
945 | ||
946 | int ossl_i2d_X448_PUBKEY(const ECX_KEY *a, unsigned char **pp) | |
947 | { | |
948 | EVP_PKEY *pktmp; | |
949 | int ret; | |
950 | ||
951 | if (a == NULL) | |
952 | return 0; | |
953 | if ((pktmp = EVP_PKEY_new()) == NULL) { | |
954 | ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); | |
955 | return -1; | |
956 | } | |
957 | (void)EVP_PKEY_assign(pktmp, EVP_PKEY_X448, (ECX_KEY *)a); | |
958 | ret = i2d_PUBKEY(pktmp, pp); | |
959 | pktmp->pkey.ptr = NULL; | |
960 | EVP_PKEY_free(pktmp); | |
961 | return ret; | |
962 | } | |
963 | ||
12aefe78 | 964 | #endif |
448be743 DSH |
965 | |
966 | int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, | |
0f113f3e MC |
967 | int ptype, void *pval, |
968 | unsigned char *penc, int penclen) | |
969 | { | |
970 | if (!X509_ALGOR_set0(pub->algor, aobj, ptype, pval)) | |
971 | return 0; | |
972 | if (penc) { | |
b548a1f1 | 973 | OPENSSL_free(pub->public_key->data); |
0f113f3e MC |
974 | pub->public_key->data = penc; |
975 | pub->public_key->length = penclen; | |
976 | /* Set number of unused bits to zero */ | |
977 | pub->public_key->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); | |
978 | pub->public_key->flags |= ASN1_STRING_FLAG_BITS_LEFT; | |
979 | } | |
980 | return 1; | |
981 | } | |
448be743 DSH |
982 | |
983 | int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, | |
0f113f3e | 984 | const unsigned char **pk, int *ppklen, |
7674e923 | 985 | X509_ALGOR **pa, const X509_PUBKEY *pub) |
0f113f3e MC |
986 | { |
987 | if (ppkalg) | |
988 | *ppkalg = pub->algor->algorithm; | |
989 | if (pk) { | |
990 | *pk = pub->public_key->data; | |
991 | *ppklen = pub->public_key->length; | |
992 | } | |
993 | if (pa) | |
994 | *pa = pub->algor; | |
995 | return 1; | |
996 | } | |
29fa0a1a DSH |
997 | |
998 | ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x) | |
999 | { | |
1000 | if (x == NULL) | |
1001 | return NULL; | |
1002 | return x->cert_info.key->public_key; | |
1003 | } | |
93f99b68 DDO |
1004 | |
1005 | /* Returns 1 for equal, 0, for non-equal, < 0 on error */ | |
1006 | int X509_PUBKEY_eq(const X509_PUBKEY *a, const X509_PUBKEY *b) | |
1007 | { | |
1008 | X509_ALGOR *algA, *algB; | |
1009 | EVP_PKEY *pA, *pB; | |
1010 | ||
1011 | if (a == b) | |
1012 | return 1; | |
1013 | if (a == NULL || b == NULL) | |
1014 | return 0; | |
1015 | if (!X509_PUBKEY_get0_param(NULL, NULL, NULL, &algA, a) || algA == NULL | |
1016 | || !X509_PUBKEY_get0_param(NULL, NULL, NULL, &algB, b) || algB == NULL) | |
1017 | return -2; | |
1018 | if (X509_ALGOR_cmp(algA, algB) != 0) | |
1019 | return 0; | |
1020 | if ((pA = X509_PUBKEY_get0(a)) == NULL | |
1021 | || (pB = X509_PUBKEY_get0(b)) == NULL) | |
1022 | return -2; | |
c74aaa39 | 1023 | return EVP_PKEY_eq(pA, pB); |
93f99b68 | 1024 | } |
22b81444 | 1025 | |
4669015d SL |
1026 | int ossl_x509_PUBKEY_get0_libctx(OSSL_LIB_CTX **plibctx, const char **ppropq, |
1027 | const X509_PUBKEY *key) | |
22b81444 RL |
1028 | { |
1029 | if (plibctx) | |
1030 | *plibctx = key->libctx; | |
1031 | if (ppropq) | |
1032 | *ppropq = key->propq; | |
1033 | return 1; | |
1034 | } |