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