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0f113f3e MC |
1 | /* |
2 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project | |
3 | * 2006. | |
448be743 DSH |
4 | */ |
5 | /* ==================================================================== | |
6 | * Copyright (c) 2006 The OpenSSL Project. All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
0f113f3e | 13 | * notice, this list of conditions and the following disclaimer. |
448be743 DSH |
14 | * |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * licensing@OpenSSL.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
54 | * (eay@cryptsoft.com). This product includes software written by Tim | |
55 | * Hudson (tjh@cryptsoft.com). | |
56 | * | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
b39fc560 | 60 | #include "internal/cryptlib.h" |
448be743 DSH |
61 | #include <openssl/asn1t.h> |
62 | #include <openssl/x509.h> | |
01b8b3c7 | 63 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e | 64 | # include <openssl/engine.h> |
01b8b3c7 | 65 | #endif |
5fe736e5 | 66 | #include "internal/asn1_int.h" |
3aeb9348 | 67 | #include "internal/evp_int.h" |
448be743 | 68 | |
448be743 | 69 | /* Keep this sorted in type order !! */ |
0f113f3e | 70 | static const EVP_PKEY_ASN1_METHOD *standard_methods[] = { |
db98bbc1 | 71 | #ifndef OPENSSL_NO_RSA |
0f113f3e MC |
72 | &rsa_asn1_meths[0], |
73 | &rsa_asn1_meths[1], | |
db98bbc1 DSH |
74 | #endif |
75 | #ifndef OPENSSL_NO_DH | |
0f113f3e | 76 | &dh_asn1_meth, |
db98bbc1 DSH |
77 | #endif |
78 | #ifndef OPENSSL_NO_DSA | |
0f113f3e MC |
79 | &dsa_asn1_meths[0], |
80 | &dsa_asn1_meths[1], | |
81 | &dsa_asn1_meths[2], | |
82 | &dsa_asn1_meths[3], | |
83 | &dsa_asn1_meths[4], | |
db98bbc1 DSH |
84 | #endif |
85 | #ifndef OPENSSL_NO_EC | |
0f113f3e | 86 | &eckey_asn1_meth, |
db98bbc1 | 87 | #endif |
0f113f3e MC |
88 | &hmac_asn1_meth, |
89 | &cmac_asn1_meth, | |
afb14cda | 90 | #ifndef OPENSSL_NO_DH |
0f113f3e | 91 | &dhx_asn1_meth |
afb14cda | 92 | #endif |
0f113f3e | 93 | }; |
448be743 | 94 | |
0f113f3e | 95 | typedef int sk_cmp_fn_type(const char *const *a, const char *const *b); |
5ce278a7 | 96 | static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL; |
18e377b4 | 97 | |
448be743 DSH |
98 | #ifdef TEST |
99 | void main() | |
0f113f3e MC |
100 | { |
101 | int i; | |
b6eb9827 | 102 | for (i = 0; i < OSSL_NELEM(standard_methods); i++) |
0f113f3e MC |
103 | fprintf(stderr, "Number %d id=%d (%s)\n", i, |
104 | standard_methods[i]->pkey_id, | |
105 | OBJ_nid2sn(standard_methods[i]->pkey_id)); | |
106 | } | |
448be743 DSH |
107 | #endif |
108 | ||
606f6c47 | 109 | DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *, |
0f113f3e | 110 | const EVP_PKEY_ASN1_METHOD *, ameth); |
babb3798 | 111 | |
0f113f3e MC |
112 | static int ameth_cmp(const EVP_PKEY_ASN1_METHOD *const *a, |
113 | const EVP_PKEY_ASN1_METHOD *const *b) | |
114 | { | |
115 | return ((*a)->pkey_id - (*b)->pkey_id); | |
116 | } | |
448be743 | 117 | |
606f6c47 | 118 | IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *, |
0f113f3e | 119 | const EVP_PKEY_ASN1_METHOD *, ameth); |
babb3798 | 120 | |
e4263314 | 121 | int EVP_PKEY_asn1_get_count(void) |
0f113f3e | 122 | { |
b6eb9827 | 123 | int num = OSSL_NELEM(standard_methods); |
0f113f3e MC |
124 | if (app_methods) |
125 | num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods); | |
126 | return num; | |
127 | } | |
e4263314 DSH |
128 | |
129 | const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx) | |
0f113f3e | 130 | { |
b6eb9827 | 131 | int num = OSSL_NELEM(standard_methods); |
0f113f3e MC |
132 | if (idx < 0) |
133 | return NULL; | |
134 | if (idx < num) | |
135 | return standard_methods[idx]; | |
136 | idx -= num; | |
137 | return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx); | |
138 | } | |
e4263314 | 139 | |
01b8b3c7 | 140 | static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type) |
0f113f3e MC |
141 | { |
142 | EVP_PKEY_ASN1_METHOD tmp; | |
143 | const EVP_PKEY_ASN1_METHOD *t = &tmp, **ret; | |
144 | tmp.pkey_id = type; | |
145 | if (app_methods) { | |
146 | int idx; | |
147 | idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp); | |
148 | if (idx >= 0) | |
149 | return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx); | |
150 | } | |
b6eb9827 | 151 | ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods)); |
0f113f3e MC |
152 | if (!ret || !*ret) |
153 | return NULL; | |
154 | return *ret; | |
155 | } | |
156 | ||
157 | /* | |
158 | * Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also | |
159 | * search through engines and set *pe to a functional reference to the engine | |
160 | * implementing 'type' or NULL if no engine implements it. | |
01b8b3c7 DSH |
161 | */ |
162 | ||
163 | const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type) | |
0f113f3e MC |
164 | { |
165 | const EVP_PKEY_ASN1_METHOD *t; | |
166 | ||
167 | for (;;) { | |
168 | t = pkey_asn1_find(type); | |
169 | if (!t || !(t->pkey_flags & ASN1_PKEY_ALIAS)) | |
170 | break; | |
171 | type = t->pkey_base_id; | |
172 | } | |
173 | if (pe) { | |
01b8b3c7 | 174 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
175 | ENGINE *e; |
176 | /* type will contain the final unaliased type */ | |
177 | e = ENGINE_get_pkey_asn1_meth_engine(type); | |
178 | if (e) { | |
179 | *pe = e; | |
180 | return ENGINE_get_pkey_asn1_meth(e, type); | |
181 | } | |
01b8b3c7 | 182 | #endif |
0f113f3e MC |
183 | *pe = NULL; |
184 | } | |
185 | return t; | |
186 | } | |
01b8b3c7 DSH |
187 | |
188 | const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe, | |
0f113f3e MC |
189 | const char *str, int len) |
190 | { | |
191 | int i; | |
192 | const EVP_PKEY_ASN1_METHOD *ameth; | |
193 | if (len == -1) | |
194 | len = strlen(str); | |
195 | if (pe) { | |
01b8b3c7 | 196 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
197 | ENGINE *e; |
198 | ameth = ENGINE_pkey_asn1_find_str(&e, str, len); | |
199 | if (ameth) { | |
200 | /* | |
201 | * Convert structural into functional reference | |
202 | */ | |
203 | if (!ENGINE_init(e)) | |
204 | ameth = NULL; | |
205 | ENGINE_free(e); | |
206 | *pe = e; | |
207 | return ameth; | |
208 | } | |
01b8b3c7 | 209 | #endif |
0f113f3e MC |
210 | *pe = NULL; |
211 | } | |
212 | for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) { | |
213 | ameth = EVP_PKEY_asn1_get0(i); | |
214 | if (ameth->pkey_flags & ASN1_PKEY_ALIAS) | |
215 | continue; | |
86885c28 RS |
216 | if (((int)strlen(ameth->pem_str) == len) |
217 | && (strncasecmp(ameth->pem_str, str, len) == 0)) | |
0f113f3e MC |
218 | return ameth; |
219 | } | |
220 | return NULL; | |
221 | } | |
e4263314 | 222 | |
e46691a0 | 223 | int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth) |
0f113f3e MC |
224 | { |
225 | if (app_methods == NULL) { | |
226 | app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp); | |
90945fa3 | 227 | if (app_methods == NULL) |
0f113f3e MC |
228 | return 0; |
229 | } | |
230 | if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth)) | |
231 | return 0; | |
232 | sk_EVP_PKEY_ASN1_METHOD_sort(app_methods); | |
233 | return 1; | |
234 | } | |
18e377b4 | 235 | |
e46691a0 | 236 | int EVP_PKEY_asn1_add_alias(int to, int from) |
0f113f3e MC |
237 | { |
238 | EVP_PKEY_ASN1_METHOD *ameth; | |
239 | ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL); | |
90945fa3 | 240 | if (ameth == NULL) |
0f113f3e MC |
241 | return 0; |
242 | ameth->pkey_base_id = to; | |
243 | if (!EVP_PKEY_asn1_add0(ameth)) { | |
244 | EVP_PKEY_asn1_free(ameth); | |
245 | return 0; | |
246 | } | |
247 | return 1; | |
248 | } | |
249 | ||
250 | int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id, | |
251 | int *ppkey_flags, const char **pinfo, | |
252 | const char **ppem_str, | |
253 | const EVP_PKEY_ASN1_METHOD *ameth) | |
254 | { | |
255 | if (!ameth) | |
256 | return 0; | |
257 | if (ppkey_id) | |
258 | *ppkey_id = ameth->pkey_id; | |
259 | if (ppkey_base_id) | |
260 | *ppkey_base_id = ameth->pkey_base_id; | |
261 | if (ppkey_flags) | |
262 | *ppkey_flags = ameth->pkey_flags; | |
263 | if (pinfo) | |
264 | *pinfo = ameth->info; | |
265 | if (ppem_str) | |
266 | *ppem_str = ameth->pem_str; | |
267 | return 1; | |
268 | } | |
269 | ||
270 | const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(EVP_PKEY *pkey) | |
271 | { | |
272 | return pkey->ameth; | |
273 | } | |
274 | ||
275 | EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags, | |
276 | const char *pem_str, const char *info) | |
277 | { | |
b51bce94 RS |
278 | EVP_PKEY_ASN1_METHOD *ameth = OPENSSL_zalloc(sizeof(*ameth)); |
279 | ||
90945fa3 | 280 | if (ameth == NULL) |
0f113f3e MC |
281 | return NULL; |
282 | ||
0f113f3e MC |
283 | ameth->pkey_id = id; |
284 | ameth->pkey_base_id = id; | |
285 | ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC; | |
286 | ||
287 | if (info) { | |
7644a9ae | 288 | ameth->info = OPENSSL_strdup(info); |
0f113f3e MC |
289 | if (!ameth->info) |
290 | goto err; | |
64b25758 | 291 | } |
0f113f3e MC |
292 | |
293 | if (pem_str) { | |
7644a9ae | 294 | ameth->pem_str = OPENSSL_strdup(pem_str); |
0f113f3e MC |
295 | if (!ameth->pem_str) |
296 | goto err; | |
64b25758 | 297 | } |
0f113f3e MC |
298 | |
299 | return ameth; | |
300 | ||
301 | err: | |
0f113f3e MC |
302 | EVP_PKEY_asn1_free(ameth); |
303 | return NULL; | |
304 | ||
305 | } | |
306 | ||
307 | void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst, | |
308 | const EVP_PKEY_ASN1_METHOD *src) | |
309 | { | |
310 | ||
311 | dst->pub_decode = src->pub_decode; | |
312 | dst->pub_encode = src->pub_encode; | |
313 | dst->pub_cmp = src->pub_cmp; | |
314 | dst->pub_print = src->pub_print; | |
315 | ||
316 | dst->priv_decode = src->priv_decode; | |
317 | dst->priv_encode = src->priv_encode; | |
318 | dst->priv_print = src->priv_print; | |
319 | ||
320 | dst->old_priv_encode = src->old_priv_encode; | |
321 | dst->old_priv_decode = src->old_priv_decode; | |
322 | ||
323 | dst->pkey_size = src->pkey_size; | |
324 | dst->pkey_bits = src->pkey_bits; | |
325 | ||
326 | dst->param_decode = src->param_decode; | |
327 | dst->param_encode = src->param_encode; | |
328 | dst->param_missing = src->param_missing; | |
329 | dst->param_copy = src->param_copy; | |
330 | dst->param_cmp = src->param_cmp; | |
331 | dst->param_print = src->param_print; | |
e69adea5 | 332 | |
0f113f3e MC |
333 | dst->pkey_free = src->pkey_free; |
334 | dst->pkey_ctrl = src->pkey_ctrl; | |
e69adea5 | 335 | |
0f113f3e MC |
336 | dst->item_sign = src->item_sign; |
337 | dst->item_verify = src->item_verify; | |
3231e42d | 338 | |
0f113f3e | 339 | } |
e69adea5 | 340 | |
d82e2718 | 341 | void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth) |
0f113f3e MC |
342 | { |
343 | if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) { | |
b548a1f1 RS |
344 | OPENSSL_free(ameth->pem_str); |
345 | OPENSSL_free(ameth->info); | |
0f113f3e MC |
346 | OPENSSL_free(ameth); |
347 | } | |
348 | } | |
18e377b4 DSH |
349 | |
350 | void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth, | |
0f113f3e MC |
351 | int (*pub_decode) (EVP_PKEY *pk, |
352 | X509_PUBKEY *pub), | |
353 | int (*pub_encode) (X509_PUBKEY *pub, | |
354 | const EVP_PKEY *pk), | |
355 | int (*pub_cmp) (const EVP_PKEY *a, | |
356 | const EVP_PKEY *b), | |
357 | int (*pub_print) (BIO *out, | |
358 | const EVP_PKEY *pkey, | |
359 | int indent, ASN1_PCTX *pctx), | |
360 | int (*pkey_size) (const EVP_PKEY *pk), | |
361 | int (*pkey_bits) (const EVP_PKEY *pk)) | |
362 | { | |
363 | ameth->pub_decode = pub_decode; | |
364 | ameth->pub_encode = pub_encode; | |
365 | ameth->pub_cmp = pub_cmp; | |
366 | ameth->pub_print = pub_print; | |
367 | ameth->pkey_size = pkey_size; | |
368 | ameth->pkey_bits = pkey_bits; | |
369 | } | |
18e377b4 DSH |
370 | |
371 | void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth, | |
0f113f3e MC |
372 | int (*priv_decode) (EVP_PKEY *pk, |
373 | PKCS8_PRIV_KEY_INFO | |
374 | *p8inf), | |
375 | int (*priv_encode) (PKCS8_PRIV_KEY_INFO *p8, | |
376 | const EVP_PKEY *pk), | |
377 | int (*priv_print) (BIO *out, | |
378 | const EVP_PKEY *pkey, | |
379 | int indent, | |
380 | ASN1_PCTX *pctx)) | |
381 | { | |
382 | ameth->priv_decode = priv_decode; | |
383 | ameth->priv_encode = priv_encode; | |
384 | ameth->priv_print = priv_print; | |
385 | } | |
18e377b4 DSH |
386 | |
387 | void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth, | |
0f113f3e MC |
388 | int (*param_decode) (EVP_PKEY *pkey, |
389 | const unsigned char **pder, | |
390 | int derlen), | |
391 | int (*param_encode) (const EVP_PKEY *pkey, | |
392 | unsigned char **pder), | |
393 | int (*param_missing) (const EVP_PKEY *pk), | |
394 | int (*param_copy) (EVP_PKEY *to, | |
395 | const EVP_PKEY *from), | |
396 | int (*param_cmp) (const EVP_PKEY *a, | |
397 | const EVP_PKEY *b), | |
398 | int (*param_print) (BIO *out, | |
399 | const EVP_PKEY *pkey, | |
400 | int indent, ASN1_PCTX *pctx)) | |
401 | { | |
402 | ameth->param_decode = param_decode; | |
403 | ameth->param_encode = param_encode; | |
404 | ameth->param_missing = param_missing; | |
405 | ameth->param_copy = param_copy; | |
406 | ameth->param_cmp = param_cmp; | |
407 | ameth->param_print = param_print; | |
408 | } | |
18e377b4 DSH |
409 | |
410 | void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth, | |
0f113f3e MC |
411 | void (*pkey_free) (EVP_PKEY *pkey)) |
412 | { | |
413 | ameth->pkey_free = pkey_free; | |
414 | } | |
18e377b4 DSH |
415 | |
416 | void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth, | |
0f113f3e MC |
417 | int (*pkey_ctrl) (EVP_PKEY *pkey, int op, |
418 | long arg1, void *arg2)) | |
419 | { | |
420 | ameth->pkey_ctrl = pkey_ctrl; | |
421 | } | |
2514fa79 DSH |
422 | |
423 | void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth, | |
0f113f3e MC |
424 | int (*pkey_security_bits) (const EVP_PKEY |
425 | *pk)) | |
426 | { | |
427 | ameth->pkey_security_bits = pkey_security_bits; | |
428 | } | |
3418f7b7 SA |
429 | |
430 | void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth, | |
431 | int (*item_verify) (EVP_MD_CTX *ctx, | |
432 | const ASN1_ITEM *it, | |
433 | void *asn, | |
434 | X509_ALGOR *a, | |
435 | ASN1_BIT_STRING *sig, | |
436 | EVP_PKEY *pkey), | |
437 | int (*item_sign) (EVP_MD_CTX *ctx, | |
438 | const ASN1_ITEM *it, | |
439 | void *asn, | |
440 | X509_ALGOR *alg1, | |
441 | X509_ALGOR *alg2, | |
442 | ASN1_BIT_STRING *sig)) | |
443 | { | |
444 | ameth->item_sign = item_sign; | |
445 | ameth->item_verify = item_verify; | |
446 | } |