2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
61 #include <openssl/asn1t.h>
62 #include <openssl/x509.h>
63 #ifndef OPENSSL_NO_ENGINE
64 # include <openssl/engine.h>
66 #include "internal/asn1_int.h"
68 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[];
69 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[];
70 extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth;
71 extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth;
72 extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth;
73 extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth;
74 extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth;
76 /* Keep this sorted in type order !! */
77 static const EVP_PKEY_ASN1_METHOD *standard_methods[] = {
78 #ifndef OPENSSL_NO_RSA
85 #ifndef OPENSSL_NO_DSA
102 typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
103 DECLARE_STACK_OF(EVP_PKEY_ASN1_METHOD)
104 static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;
110 for (i = 0; i < OSSL_NELEM(standard_methods); i++)
111 fprintf(stderr, "Number %d id=%d (%s)\n", i,
112 standard_methods[i]->pkey_id,
113 OBJ_nid2sn(standard_methods[i]->pkey_id));
117 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
118 const EVP_PKEY_ASN1_METHOD *, ameth);
120 static int ameth_cmp(const EVP_PKEY_ASN1_METHOD *const *a,
121 const EVP_PKEY_ASN1_METHOD *const *b)
123 return ((*a)->pkey_id - (*b)->pkey_id);
126 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
127 const EVP_PKEY_ASN1_METHOD *, ameth);
129 int EVP_PKEY_asn1_get_count(void)
131 int num = OSSL_NELEM(standard_methods);
133 num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
137 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
139 int num = OSSL_NELEM(standard_methods);
143 return standard_methods[idx];
145 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
148 static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
150 EVP_PKEY_ASN1_METHOD tmp;
151 const EVP_PKEY_ASN1_METHOD *t = &tmp, **ret;
155 idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
157 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
159 ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
166 * Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also
167 * search through engines and set *pe to a functional reference to the engine
168 * implementing 'type' or NULL if no engine implements it.
171 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type)
173 const EVP_PKEY_ASN1_METHOD *t;
176 t = pkey_asn1_find(type);
177 if (!t || !(t->pkey_flags & ASN1_PKEY_ALIAS))
179 type = t->pkey_base_id;
182 #ifndef OPENSSL_NO_ENGINE
184 /* type will contain the final unaliased type */
185 e = ENGINE_get_pkey_asn1_meth_engine(type);
188 return ENGINE_get_pkey_asn1_meth(e, type);
196 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
197 const char *str, int len)
200 const EVP_PKEY_ASN1_METHOD *ameth;
204 #ifndef OPENSSL_NO_ENGINE
206 ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
209 * Convert structural into functional reference
220 for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
221 ameth = EVP_PKEY_asn1_get0(i);
222 if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
224 if (((int)strlen(ameth->pem_str) == len) &&
225 !strncasecmp(ameth->pem_str, str, len))
231 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
233 if (app_methods == NULL) {
234 app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
238 if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
240 sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
244 int EVP_PKEY_asn1_add_alias(int to, int from)
246 EVP_PKEY_ASN1_METHOD *ameth;
247 ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
250 ameth->pkey_base_id = to;
251 if (!EVP_PKEY_asn1_add0(ameth)) {
252 EVP_PKEY_asn1_free(ameth);
258 int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id,
259 int *ppkey_flags, const char **pinfo,
260 const char **ppem_str,
261 const EVP_PKEY_ASN1_METHOD *ameth)
266 *ppkey_id = ameth->pkey_id;
268 *ppkey_base_id = ameth->pkey_base_id;
270 *ppkey_flags = ameth->pkey_flags;
272 *pinfo = ameth->info;
274 *ppem_str = ameth->pem_str;
278 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(EVP_PKEY *pkey)
283 EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
284 const char *pem_str, const char *info)
286 EVP_PKEY_ASN1_METHOD *ameth;
287 ameth = OPENSSL_malloc(sizeof(*ameth));
291 memset(ameth, 0, sizeof(*ameth));
293 ameth->pkey_base_id = id;
294 ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC;
297 ameth->info = BUF_strdup(info);
304 ameth->pem_str = BUF_strdup(pem_str);
308 ameth->pem_str = NULL;
310 ameth->pub_decode = 0;
311 ameth->pub_encode = 0;
313 ameth->pub_print = 0;
315 ameth->priv_decode = 0;
316 ameth->priv_encode = 0;
317 ameth->priv_print = 0;
319 ameth->old_priv_encode = 0;
320 ameth->old_priv_decode = 0;
322 ameth->item_verify = 0;
323 ameth->item_sign = 0;
325 ameth->pkey_size = 0;
326 ameth->pkey_bits = 0;
328 ameth->param_decode = 0;
329 ameth->param_encode = 0;
330 ameth->param_missing = 0;
331 ameth->param_copy = 0;
332 ameth->param_cmp = 0;
333 ameth->param_print = 0;
335 ameth->pkey_free = 0;
336 ameth->pkey_ctrl = 0;
342 EVP_PKEY_asn1_free(ameth);
347 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
348 const EVP_PKEY_ASN1_METHOD *src)
351 dst->pub_decode = src->pub_decode;
352 dst->pub_encode = src->pub_encode;
353 dst->pub_cmp = src->pub_cmp;
354 dst->pub_print = src->pub_print;
356 dst->priv_decode = src->priv_decode;
357 dst->priv_encode = src->priv_encode;
358 dst->priv_print = src->priv_print;
360 dst->old_priv_encode = src->old_priv_encode;
361 dst->old_priv_decode = src->old_priv_decode;
363 dst->pkey_size = src->pkey_size;
364 dst->pkey_bits = src->pkey_bits;
366 dst->param_decode = src->param_decode;
367 dst->param_encode = src->param_encode;
368 dst->param_missing = src->param_missing;
369 dst->param_copy = src->param_copy;
370 dst->param_cmp = src->param_cmp;
371 dst->param_print = src->param_print;
373 dst->pkey_free = src->pkey_free;
374 dst->pkey_ctrl = src->pkey_ctrl;
376 dst->item_sign = src->item_sign;
377 dst->item_verify = src->item_verify;
381 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
383 if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
384 OPENSSL_free(ameth->pem_str);
385 OPENSSL_free(ameth->info);
390 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
391 int (*pub_decode) (EVP_PKEY *pk,
393 int (*pub_encode) (X509_PUBKEY *pub,
395 int (*pub_cmp) (const EVP_PKEY *a,
397 int (*pub_print) (BIO *out,
398 const EVP_PKEY *pkey,
399 int indent, ASN1_PCTX *pctx),
400 int (*pkey_size) (const EVP_PKEY *pk),
401 int (*pkey_bits) (const EVP_PKEY *pk))
403 ameth->pub_decode = pub_decode;
404 ameth->pub_encode = pub_encode;
405 ameth->pub_cmp = pub_cmp;
406 ameth->pub_print = pub_print;
407 ameth->pkey_size = pkey_size;
408 ameth->pkey_bits = pkey_bits;
411 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
412 int (*priv_decode) (EVP_PKEY *pk,
415 int (*priv_encode) (PKCS8_PRIV_KEY_INFO *p8,
417 int (*priv_print) (BIO *out,
418 const EVP_PKEY *pkey,
422 ameth->priv_decode = priv_decode;
423 ameth->priv_encode = priv_encode;
424 ameth->priv_print = priv_print;
427 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
428 int (*param_decode) (EVP_PKEY *pkey,
429 const unsigned char **pder,
431 int (*param_encode) (const EVP_PKEY *pkey,
432 unsigned char **pder),
433 int (*param_missing) (const EVP_PKEY *pk),
434 int (*param_copy) (EVP_PKEY *to,
435 const EVP_PKEY *from),
436 int (*param_cmp) (const EVP_PKEY *a,
438 int (*param_print) (BIO *out,
439 const EVP_PKEY *pkey,
440 int indent, ASN1_PCTX *pctx))
442 ameth->param_decode = param_decode;
443 ameth->param_encode = param_encode;
444 ameth->param_missing = param_missing;
445 ameth->param_copy = param_copy;
446 ameth->param_cmp = param_cmp;
447 ameth->param_print = param_print;
450 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
451 void (*pkey_free) (EVP_PKEY *pkey))
453 ameth->pkey_free = pkey_free;
456 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
457 int (*pkey_ctrl) (EVP_PKEY *pkey, int op,
458 long arg1, void *arg2))
460 ameth->pkey_ctrl = pkey_ctrl;
463 void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
464 int (*pkey_security_bits) (const EVP_PKEY
467 ameth->pkey_security_bits = pkey_security_bits;